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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.

    Source document

    docs/rpo/buick/regal-e2xx.md

    Interactive view →

    Rendered verbatim from the reference. Factory citations shown as ⛭ GM Heritage — …. For filtering, badges, and crosslinks, use the interactive Regal — E2XX (2018–2020) page.

    Buick Regal — E2XX, Opel Insignia B (sixth generation) (2018–2020)

    The sixth-generation Regal was sold as the Regal Sportback and, from the 2018 guides, the Regal TourX; the NICB VIN manuals list both for 2018 through 2020, as Regal, Preferred, Preferred II, Essence and GS Sportbacks (plus Avenir from 2019) and Base, Preferred and Essence TourXs. Two engines appear: the turbo 2.0L LTG four-cylinder on every Sportback trim but the GS and in the TourX, and the 3.6L V6 LGX on the GS, with 8 and 9 speed automatics. The 2018 rows come from the Sportback and TourX fleet order guide RPO lists, with trim availability and 2019 years from the 2019 Sportback order guide (revised April 20, 2018; GM Authority's copy, captured in the archive as a factory document), which also gives the paint and seat-trim codes. The 2019 TourX has no GM option list and 2020 has none at all, so 2020 rests on the NICB VIN manual alone (2020 pages 39 and 40).

    Codes

    Engines

    Code Description Years Models/Notes Confidence
    KL9 Engine control, stop-start system 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    LGX Engine, 3.6L V6, direct injection, DOHC, variable valve timing, aluminum 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); new for 2018; the 2019 guide gives 310 hp and 282 lb-ft ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    LTG Engine, 2.0L turbo, DOHC, 4-cylinder, SIDI, variable valve timing (VVT) 2018–2019 2019: Regal, Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide); the 2018 Sportback guide gives 250 hp and 260 lb-ft (295 lb-ft with AWD) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed

    Transmissions

    Code Description Years Models/Notes Confidence
    M3D Transmission, 9 speed automatic 2018–2019 only in: Sportback; 2019: Regal, Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.8 confirmed
    M3T Transmission, 9 speed automatic 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); new for 2018; same wording as M3D ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.8 confirmed
    MRC Transmission, 8 speed automatic 2018–2019 2019: Preferred II, Essence: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.8 confirmed

    Axles

    Code Description Years Models/Notes Confidence
    D95 Axle, 3.08 final drive ratio 2018–2019 2019: Preferred II, Essence: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    F46 Drivetrain, intelligent all-wheel drive with active twin clutch 2018–2019 2019: Preferred II, Essence, GS: S (2019 Sportback order guide); the TourX list prints Drivetrain only ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    FXK Axle, 2.89 final drive ratio 2018–2019 only in: Sportback; 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    G99 Axle, rear, electronic, twin clutch 2018–2019 2019: Preferred II, Essence, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed

    Packages & Trims

    Code Description Years Models/Notes Confidence
    1SB Equipment group 1SB, Preferred 2018–2019 Sportback model 4ZW68 FWD; TourX model 4ZW35 AWD ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.2 · 2018 buick regal tourx fleet order guide wayback, p.2 · 2019 buick regal sportback fleet order guide wayback, p.1 confirmed
    1SC Equipment group 1SC, Preferred II 2018–2019 only in: Sportback; models 4ZX68 FWD and 4ZG68 AWD; the 2019 page says the FWD (4ZX68) and AWD (printed 42G68) 1SC are no longer orderable as of 1-28-19 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.2 · 2019 buick regal sportback fleet order guide wayback, p.1 confirmed
    1SL Equipment group 1SL, Essence 2018–2019 Sportback models 4ZY68 FWD and 4ZH68 AWD; TourX model 4ZY35 AWD ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.2 · 2018 buick regal tourx fleet order guide wayback, p.2 · 2019 buick regal sportback fleet order guide wayback, p.1 confirmed
    1SU Equipment group 1SU, Avenir 2019 only in: Sportback; model 4ZY68 FWD ⛭ GM factory document — 2019 buick regal sportback fleet order guide wayback, p.1 confirmed
    1SV Equipment group 1SV, Regal 2018–2019 Sportback model 4ZU68 FWD; TourX model 4ZU35 AWD ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.2 · 2018 buick regal tourx fleet order guide wayback, p.2 · 2019 buick regal sportback fleet order guide wayback, p.1 confirmed
    1SX Equipment group 1SX, GS 2018–2019 only in: Sportback; model 4ZZ68 AWD ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.2 · 2019 buick regal sportback fleet order guide wayback, p.1 confirmed
    A44 Memory package 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); same GM wording as A45; the 2019 guide adds a front passenger 8-way seat preset ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    A45 Memory package 2018–2019 2019: Avenir: S; Essence: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.9 confirmed
    B26 Driver Confidence package #1 2018–2019 2019: Preferred, Preferred II, Essence: O; Avenir: S; the package contents differ by trim (2019 Sportback order guide); the 2019 guide calls it Driver Confidence Package I ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    BAQ Appearance package 2018–2019 only in: Sportback; 2019: GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.13 confirmed
    BGP Driver Confidence package #2 2018–2019 2019: Essence, Avenir: O; GS: O, and the GS version adds head-up display (2019 Sportback order guide); the 2019 guide calls it Driver Confidence Package II and requires B26 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.13 confirmed
    PDE LPO, Winter/Summer Floor Mat Package 2019 2019: Preferred, Preferred II, Essence, Avenir: O (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    PDG LPO, Summer/Winter Package 2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    PDH LPO, Buick Interior Protection Package 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.13 confirmed
    WPY Sights and Sounds package 2018–2019 2019: Preferred, Preferred II, Essence, GS: O; Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.9 confirmed

    Equipment

    Code Description Years Models/Notes Confidence
    5A7 Wheel, spare, none 2018–2019 2019: Regal, Avenir, GS: S; Preferred, Preferred II, Essence: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    9L3 Tire, spare, none 2018–2019 2019: Regal, Avenir, GS: S; Preferred, Preferred II, Essence: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    A51 Seats, front bucket 2018–2019 2019: Regal, Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    A64 Seat, rear 60/40 split-folding 2018–2019 2019: Regal, Preferred: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    A69 Safety belts, 3-point, rear, all seating positions 2018–2019 2019: all trims: S (2019 Sportback order guide); the 2019 guide reads seat belts ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    A70 Safety belts, 3-point, driver and front passenger 2018–2019 2019: all trims: S (2019 Sportback order guide); the 2019 guide reads seat belts ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AE2 Trunk emergency release handle 2018–2019 only in: Sportback; 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AE8 Seat adjuster, driver 8-way power 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AEF Window, power 2018–2019 2019: all trims: S (2019 Sportback order guide); the 2019 guide adds front passenger express up and down ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AEQ Windows, power 2018–2019 2019: all trims: S (2019 Sportback order guide); the 2019 guide reads rear, with express-down ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AF6 Seat, driver massage control 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AG5 Seat adjuster, front passenger 4-way manual, including recline 2018–2019 2019: Regal: S (2019 Sportback order guide); the 2018 list reads 2-way manual, and the 2019 guide counts recline as extra ways ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AG6 Seat adjuster, front passenger 6-way manual, including recline 2018–2019 2019: Preferred, Preferred II: S (2019 Sportback order guide); the 2018 list reads 4-way manual, and the 2019 guide counts recline as extra ways ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AH3 Seat adjuster, driver 6-way manual 2018–2019 2019: Regal: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AH8 Seat adjuster, passenger 8-way power 2018–2019 2019: Essence, Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AHC Seat, driver manual cushion extension 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); the 2019 guide reads thigh cushion extension ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AHE Seat adjuster, driver power bolster 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); the 2019 guide reads seat, driver power bolsters ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AHF Seat, front passenger manual cushion extension 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); the 2019 guide reads thigh cushion extension ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AHH Seat, front passenger power bolster 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); the 2019 guide reads bolsters ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AJC Head restraints, 2-way adjustable 2018–2019 2019: Regal, Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    AJW Glass, laminated 2018–2019 2019: all trims: S (2019 Sportback order guide); the 2019 guide adds acoustic front side glass ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AKE Seat, front passenger massage control 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AKP Glass, solar absorbing 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AKX Windshield, solar absorbing 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AL0 Air bag, passenger sensing system 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    AL9 Seat adjuster, driver 2-way power lumbar control 2018–2019 2019: Preferred, Preferred II, Essence: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    ANY Cargo management, rear storage area 2018 only in: TourX ⛭ GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    AQJ Seats, front bucket 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); the 2019 guide reads high performance ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    ARJ Seats, 40/20/40 rear fold flat, tri-folding 2018–2019 2019: Preferred II, Essence, Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    ASV Sensor, humidity 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AT9 Seat adjuster, front passenger 2-way power lumbar 2018–2019 2019: Essence: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    ATH Keyless open 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    AVK Seat adjuster, driver 4-way power lumbar 2018–2019 2019: Avenir, GS: S; Essence: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AVU Seat adjuster, front passenger 4-way power 2018–2019 2019: Avenir, GS: S; Essence: O (2019 Sportback order guide); the 2019 guide reads 4-way power lumbar ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    AXG Window, power 2018–2019 2019: all trims: S (2019 Sportback order guide); the 2019 guide adds driver express up and down ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    AYF Air bags, frontal, driver and right-front passenger 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    B34 Floor mats, carpeted front 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    B35 Floor mats, carpeted rear 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    BII Sill plates, GS specific 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    BTM Keyless start 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    BTT Remote panic alarm 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    BTV Remote vehicle starter system 2018–2019 2019: Preferred II, Essence, Avenir, GS: S; Preferred: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    C25 Wiper, rear intermittent 2018 only in: TourX ⛭ GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    C3U Moonroof, power 2018 only in: TourX ⛭ GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    C4P Air conditioning, single-zone manual 2018–2019 2019: Regal, Preferred: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    C59 Air vents, rear 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    C93 Lighting, interior 2018–2019 2019: Preferred II, Essence, Avenir, GS: S (2019 Sportback order guide); the 2019 guide reads ambient ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    CAV LPO, cargo tray 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    CF5 Moonroof, power 2018–2019 only in: Sportback; 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    CJ2 Air conditioning, dual-zone automatic climate control 2018–2019 2019: Preferred II, Essence, Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    CNG Sill plates, Buick 2018–2019 2019: Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    D31 Mirror, inside rearview 2018–2019 2019: Regal: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    DD3 Visors, driver and front passenger illuminated vanity mirrors 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    DD8 Mirror, inside rearview auto-dimming 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    DLF Mirrors, outside heated power-adjustable 2018–2019 2019: Regal, Preferred, Preferred II, Essence: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    DXA Mirrors, outside heated, power-adjustable, driver side auto-dimming 2018–2019 2019: Avenir, GS: S; Essence: O (2019 Sportback order guide); the TourX list prints autodimming ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    F45 Chassis, continuously variable real time damping with interactive drive control 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); new for 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    FX3 StabiliTrak, stability control system with traction control 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    GNA Suspension, front MacPherson strut 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.8 confirmed
    GNC Suspension, rear 4-link 2018–2019 only in: Sportback; 2019: Regal, Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.8 confirmed
    GNQ Suspension, rear 5-link 2018–2019 2019: Preferred II, Essence, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.8 confirmed
    IO5 Audio system, Buick Infotainment System, AM/FM stereo 2018 letter O in the code as GM prints it; GM prints no zero form ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    IO6 Audio system, Buick Infotainment System with navigation, AM/FM stereo 2018 letter O in the code as GM prints it; GM prints no zero form ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    IOB Audio system, Buick Infotainment System 2018 letter O in the code as GM prints it; GM prints no zero form ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    IOR Audio system, 7" diagonal Buick Infotainment System 2018–2019 only in: Sportback; 2019: Regal, Preferred: S (2019 Sportback order guide); letter O in the code as GM prints it; GM prints no zero form ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    IOS Audio system, 8" diagonal Buick Infotainment System 2018–2019 only in: Sportback; 2019: Preferred II, Essence, Avenir, GS: S (2019 Sportback order guide); letter O in the code as GM prints it; GM prints no zero form ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    IOT Audio system, 8" diagonal Buick Infotainment System with navigation 2018–2019 only in: Sportback; 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); letter O in the code as GM prints it; GM prints no zero form ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.19 confirmed
    J17 Brakes, 4-wheel antilock, 4-wheel disc, 17" front and 16" rear 2018–2019 2019: Preferred II, Essence: S (2019 Sportback order guide); the TourX list prints the shorter 4-wheel disc form ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    J60 Brakes, 4-wheel antilock, 4-wheel disc, 16" front and rear 2018–2019 only in: Sportback; 2019: Regal, Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    J71 Brake, parking, electronic 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    JF5 Pedals, sport alloy 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    JJ2 Brake lining, high-performance, noise and dust performance 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    JQ5 Brakes, Brembo, performance, 4-wheel antilock, 4-wheel vented disc 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); new for 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    K05 Engine block heater 2018–2019 2019: Regal, Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.15 confirmed
    K34 Cruise control 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    K4C Wireless charging 2018–2019 2019: Preferred II, Essence: O (with B26); Avenir: S; GS: O (with BAQ) (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.9 confirmed
    KA1 Seats, heated driver and front passenger 2018–2019 2019: Essence, Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    KEM Air cleaner, ionizing 2019 2019: Essence, Avenir, GS: S (2019 Sportback order guide); new for 2019 ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    KRH Air filtration system 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.1 confirmed
    KSG Cruise control, adaptive, full-speed range 2018–2019 2019: Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.20 confirmed
    KTI Tire inflator kit 2018–2019 2019: Regal, Preferred II, Essence, Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    KU9 Seats, ventilated driver and front passenger 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    MCY Audio system feature, USB port 2018–2019 2019: all trims: S (2019 Sportback order guide); the 2019 guide reads inside the front console ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    MDT Moldings 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    N34 Steering wheel, leather-wrapped, 3-spoke 2018–2019 2019: Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    N37 Steering column, tilt and telescopic 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    N52 Steering wheel 2018–2019 2019: Regal: S (2019 Sportback order guide); the 2019 guide reads 3-spoke ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    N55 Steering wheel, leather-wrapped, 3-spoke 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); the 2019 guide reads sport, flat bottom ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    NJ0 Steering, power, electric, rack-mounted, variable assist 2018–2019 2019: Preferred II, Essence, Avenir, GS: S; Preferred: O (2019 Sportback order guide); 2018: included and only available with B26 on Preferred; same wording as NJ1 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.8 confirmed
    NJ1 Steering, power, electric, rack-mounted, variable assist 2018–2019 only in: Sportback; 2019: Regal, Preferred: S (2019 Sportback order guide); same wording as NJ0 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    NKC Noise control system, active noise cancellation 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    P0G GM Commercial Link, 1 year of service 2018–2019 only in: Sportback; 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.35 confirmed
    P0H GM Commercial Link, 2 years of service 2018–2019 only in: Sportback; 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.35 confirmed
    P0I GM Commercial Link, 3 years of service 2018–2019 only in: Sportback; 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); the 2019 guide prints POI with a letter O; P0I in the 2018 list ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.36 confirmed
    P0J OnStar Fleet Safety and Security, additional 21 months 2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); new for 2019; the guide prints POJ with a letter O; fleet orders ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.33 confirmed
    P0K OnStar Fleet Safety and Security, additional 33 months 2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); new for 2019; the guide prints POK with a letter O; fleet orders ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.33 confirmed
    P0L OnStar Fleet Safety and Security, additional 45 months 2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); new for 2019; the guide prints POL with a letter O; fleet orders ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.33 confirmed
    P0M OnStar Fleet Remote Access, additional 21 months 2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); new for 2019; the guide prints POM with a letter O; fleet orders ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.33 confirmed
    P0N OnStar Fleet Remote Access, additional 33 months 2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); new for 2019; fleet orders ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.34 confirmed
    P0O OnStar Fleet Remote Access, additional 45 months 2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); new for 2019; fleet orders ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.34 confirmed
    PQF OnStar Protection Service, 6 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PQG OnStar Protection Service, 18 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PQH OnStar Protection Service, 30 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PQI OnStar Security Service, 6 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PQL OnStar Security Service, 18 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PQM OnStar Security Service, 30 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PQP OnStar Fleet Guidance Service, additional 6 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PQQ OnStar Fleet Guidance Service, additional 18 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PQT OnStar Fleet Guidance Service, additional 30 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    PR6 SiriusXM Satellite Radio, additional 9 months of the SiriusXM All Access Package 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); fleet orders ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.34 confirmed
    PR7 SiriusXM Satellite Radio, additional 21 months of the SiriusXM All Access Package 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); fleet orders ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.34 confirmed
    PR8 SiriusXM Satellite Radio, additional 33 months of the SiriusXM All Access Package 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); fleet orders ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.35 confirmed
    PRD OnStar Protection Service, 42 months 2018 only in: Sportback ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 confirmed
    PRE OnStar Security Service, 42 months 2018 only in: Sportback ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 confirmed
    PRF OnStar Fleet Guidance Service, additional 42 months 2018 only in: Sportback ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 confirmed
    Q6M Wheels, 19" (48.3 cm) aluminum 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide); the 2019 guide adds Technical Gray accents ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.7 confirmed
    QCL Tire, compact spare, T125/70R17 2018–2019 only in: Sportback; 2019: Preferred, Preferred II, Essence: S (2019 Sportback order guide); the 2019 guide adds blackwall ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    R0X Tires, 245/45R18 all-season, blackwall 2018–2019 only in: Sportback; 2019: Preferred II, Essence: S; Preferred: O (2019 Sportback order guide); the 2019 guide prints ROX with a letter O in places ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    R3X Tires, P235/50R18 all-season, blackwall 2018 only in: TourX ⛭ GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    RA9 Tires, P225/55R17, all-season, blackwall 2018–2019 only in: Sportback; 2019: Regal, Preferred: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    RCV Wheels, 18" (45.7 cm) 5-spoke Dynamic aluminum 2018–2019 only in: Sportback; 2019: Preferred: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.26 confirmed
    RD1 Wheels, 18" (45.7 cm) aluminum 2018–2019 only in: Sportback; 2019: Preferred II, Essence: S (2019 Sportback order guide); the 2019 guide adds machine-faced with painted pockets ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    RMI Tires, 245/40R19 all-season, blackwall 2018–2019 only in: Sportback; 2019: Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    ROV OnStar 4G LTE for Fleet, 20GB, 12 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    ROW OnStar 4G LTE for Fleet, 36GB, 24 months 2018 ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    RSC Wheels, 17" (43.2 cm) aluminum 2018–2019 only in: Sportback; 2019: Regal, Preferred: S (2019 Sportback order guide); the 2019 guide adds 5-spoke ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    RV1 Wheels, 18" (45.7 cm) aluminum 2018 only in: TourX ⛭ GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    RV9 Wheel, compact spare, 17" (43.2 cm) steel 2018–2019 only in: Sportback; 2019: Preferred, Preferred II, Essence: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    RWU LPO, cargo area organizer, collapsible 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); the 2019 guide adds universal ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.13 confirmed
    RYT LPO, first aid kit 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    RZ1 LPO, premium carpeted front and rear floor mats, black 2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); new for 2019 ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.13 confirmed
    S08 LPO, Highway Safety Kit 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    S0M LPO, illuminated door sill plates 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); the 2019 guide prints SOM with a letter O in places ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    S5W LPO, seat back organizer 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    S6P LPO, remote start kit 2019 2019: Regal: O (2019 Sportback order guide); new for 2019 ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    SBZ LPO, sport pedal kit 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    SFE LPO, wheel locks 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    SIF LPO, universal tablet holder 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    T2T Remote control 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    T3U Fog lamps 2018–2019 only in: TourX; 2019: Preferred II, Essence, Avenir: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    T4A Headlamps, halogen composite 2018–2019 2019: Regal, Preferred, Preferred II, Essence, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    T4L Headlamps, LED 2018–2019 2019: Avenir: S; Preferred, Preferred II, Essence, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.9 confirmed
    T7E Daytime running lamps 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    T83 Headlamp control, automatic on and off 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    T95 Lamps, cornering 2018–2019 2019: part of B26 and BAQ (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.12 confirmed
    TC2 Hands-free liftgate 2018 only in: TourX ⛭ GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1 confirmed
    TDM Teen Driver 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    TR7 Headlamp control, leveling system, automatic 2018–2019 2019: part of B26 and BAQ (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.12 confirmed
    U2K SiriusXM Satellite Radio 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    U2M Audio system, SiriusXM and HD Radio 2018–2019 2019: Avenir: S; Preferred, Preferred II, Essence, GS: O (2019 Sportback order guide); the 2019 guide reads HD Radio only ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    U65 Audio system feature, 7-speaker system 2018–2019 only in: Sportback; 2019: Regal, Preferred, Preferred II, Essence: S (2019 Sportback order guide); 2019: FWD models only ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    U77 Antenna, integral rear 2018–2019 2019: Regal, Preferred: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    U80 Compass display 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    UD5 Park assist, front and rear 2018–2019 only in: Sportback; 2019: GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    UD7 Park assist, rear 2018–2019 2019: Avenir: S; Preferred, Preferred II, Essence: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.10 confirmed
    UDD Display, driver instrument information enhanced, 4.2" multi-color 2018–2019 2019: Preferred II, Essence, Avenir: S; Preferred: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    UE1 OnStar Guidance Plan, limited trial service 2018–2019 2019: all trims: S (2019 Sportback order guide); the Sportback list also prints OnStar and Buick connected services capable, as does the 2019 guide ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    UE4 Following distance indicator 2018–2019 2019: Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.20 confirmed
    UEU Forward collision alert 2018–2019 2019: Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.20 confirmed
    UFG Rear cross-traffic alert 2018–2019 2019: Avenir, GS: S; Preferred, Preferred II, Essence: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    UGE Tail lamps, LED 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    UGN Automatic braking, forward 2018–2019 2019: Essence, Avenir, GS: O (2019 Sportback order guide); the TourX list prints Front Automatic Braking ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.25 confirmed
    UHX Lane keep assist 2018–2019 2019: Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.21 confirmed
    UJM Tire pressure monitoring system 2018–2019 2019: all trims: S (2019 Sportback order guide); the TourX list prints Tire Pressure Monitor System ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    UKC Lane change alert with side blind zone alert 2018–2019 2019: Avenir, GS: S; Preferred, Preferred II, Essence: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    UKJ Pedestrian braking, front 2018–2019 2019: Essence, Avenir, GS: O (2019 Sportback order guide); the TourX list prints Pedestrian detection, front ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.20 confirmed
    UMN Speedometer, miles/kilometers 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    UQ3 Audio system feature, enhanced speaker system 2018–2019 2019: Preferred II, Essence, GS: S (2019 Sportback order guide); the 2019 guide reads enhanced 7-speaker system with active noise cancellation, AWD models only ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    UQA Audio system feature, Bose premium 8-speaker system 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.19 confirmed
    US3 Antenna, rear integrated diversity 2018–2019 2019: Preferred II, Essence, Avenir, GS: S; Preferred: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    USS USB charging port 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.2 confirmed
    UTJ Theft-deterrent system 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    UV6 Head-up display 2018–2019 only in: Sportback; 2019: GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.20 confirmed
    UVC Rear vision camera 2018–2019 2019: all trims: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.4 confirmed
    UVD Steering wheel, heated 2018–2019 2019: Preferred II, Essence, Avenir, GS: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.5 confirmed
    V33 Tool kit, road emergency 2018–2019 only in: Sportback; 2019: Preferred, Preferred II, Essence: S (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.6 confirmed
    VAV LPO, all-weather floor mats 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.13 confirmed
    VK3 License plate bracket, front 2018–2019 2019: Regal, Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    VQK LPO, front and rear molded splash guards 2018–2019 2019: Preferred, Preferred II, Essence, Avenir: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    VV4 OnStar 4G LTE 2018–2019 2019: all trims: S (2019 Sportback order guide); the Sportback list also prints Buick 4G LTE for it; the 2019 guide calls it Buick 4G LTE ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.3 confirmed
    WH6 LPO, cargo net 2018–2019 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.13 confirmed
    WR8 Wheels, 19" (48.3 cm) aluminum, Pearl Nickel finish 2019 2019: Avenir: S (2019 Sportback order guide); new for 2019 ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.7 confirmed

    Paint

    Code Description Years Models/Notes Confidence
    G0Y Paint, Rioja Red Metallic 2019 2019: premium paint; not on Regal or GS (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    G6R Paint, Carrageen Metallic 2019 2019: premium paint; not on Regal, Avenir or GS (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    GAN Paint, Quicksilver Metallic 2019 2019: premium paint; not on Avenir (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    GAZ Paint, Summit White 2019 2019: not on Avenir or GS (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    GB9 Paint, Ebony Twilight Metallic 2019 2019: premium paint (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    GDX Paint, Dark Moon Blue Metallic 2019 2019: premium paint; not on Regal or GS (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    GG7 Paint, Sport Red 2019 2019: GS only (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    GP6 Paint, White Frost Tricoat 2019 2019: premium paint; not on Regal (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    GR5 Paint, Smoked Pearl Metallic 2019 2019: premium paint; not on Regal (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed

    Interior Trim

    Code Description Years Models/Notes Confidence
    H0Y Interior trim, Ebony seats with Ebony interior accents, leather-appointed 2019 only in: Essence; seat A51 front bucket; 2019 (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    HBR Interior trim, Whisper Beige seats with Ebony interior accents, perforated leather 2019 only in: Avenir; seat A51 front bucket; 2019 (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    HBX Interior trim, Ebony seats with Ebony interior accents, cloth 2019 only in: Preferred (1SB); the table row covers Regal and Preferred, but footnote 1 on HBX1 says not available on 1SV, so the 1 reads as a footnote mark; seat A51 front bucket; 2019 (2019 Sportback order guide, p.32; no [FD] because the guide prints the code only with the attached footnote digit) confirmed
    HCJ Interior trim, Shale seats with Ebony interior accents, cloth 2019 only in: Regal, Preferred; seat A51 front bucket; 2019 (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    HDI Interior trim, Ebony seats with Ebony interior accents, premium cloth 2019 only in: Preferred II; seat A51 front bucket; 2019 (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    HNW Interior trim, Shale seats with Ebony interior accents, premium cloth 2019 only in: Preferred II; seat A51 front bucket; 2019 (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    HNX Interior trim, Shale seats with Ebony interior accents, leather-appointed 2019 only in: Essence; seat A51 front bucket; 2019 (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    HX1 Interior trim, Ebony seats with Ebony interior accents, sport front buckets, perforated leather 2019 only in: GS; seat A51 front bucket; 2019 (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed
    HXC Interior trim, Ebony seats with Ebony interior accents, perforated leather 2019 only in: Avenir; seat A51 front bucket; 2019 (2019 Sportback order guide) ⛭ GM factory document — 2019 buick regal sportback order guide copy gm authority, p.32 confirmed

    Internal / Process

    Code Description Years Models/Notes Confidence
    FE9 Emissions, Federal requirements 2018–2019 internal code; 2019: Regal, Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    NB8 Emissions override, California 2018–2019 internal code; 2019: Regal, Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.15 confirmed
    NB9 Emissions override, state-specific 2018–2019 internal code; 2019: Regal, Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.15 confirmed
    NC7 Emissions override, Federal 2018–2019 internal code; 2019: Regal, Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.15 confirmed
    NE1 Emissions, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington state requirements 2018–2019 internal code; 2019: Regal, Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed
    R9Y Fleet free maintenance credit 2018–2019 internal code; 2019: Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide); fleet and government order types only ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.15 confirmed
    YF5 Emissions, California state requirements 2018–2019 internal code; 2019: Regal, Preferred, Preferred II, Essence, Avenir, GS: O (2019 Sportback order guide) ⛭ GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5 · 2018 buick regal tourx fleet order guide wayback, p.1 · 2019 buick regal sportback order guide copy gm authority, p.14 confirmed

    Sources

    Factory documents (T1)

    • [FD] buick/2018-buick-regal-sportback-fleet-order-guide-wayback.txt — 2018 Buick Regal Sportback, GM Fleet Order Guide (Wayback Machine captures): p.1 RPO codes, p.2 model list, p.5 mechanical
    • [FD] buick/2018-buick-regal-tourx-fleet-order-guide-wayback.txt — 2018 Buick Regal TourX, GM Fleet Order Guide (Wayback Machine captures): p.1 RPO codes, p.2 model list
    • [FD] buick/2019-buick-regal-sportback-fleet-order-guide-wayback.txt — 2019 Buick Regal Sportback, GM Fleet Order Guide (Wayback Machine capture of the model page only): p.1 model list
    • [FD] buick/2019-buick-regal-sportback-order-guide-copy-gm-authority.txt — 2019 Buick Regal Sportback — GM order guide, revised April 20, 2018 (GM Authority copy); origin https://gmauthority.com/blog/wp-content/uploads/2018/04/2019-Buick-Regal-Sportback-order-guide-revised-April-20-2018.pdf; archival-verified: p.1–15 and p.19–26 standard and optional equipment tables by trim, p.32 color and trim (paint and seat-trim codes), p.33–36 OnStar, SiriusXM and Commercial Link service options

    Other sources

    • NICB VIN manuals docs/reference/nicb/nicb2018-gm.txt p.41–42, nicb2019-gm.txt and nicb2020-gm.txt p.39–40 (T4, in the repository): series names for the aliases and the 2020 model year