Cadillac CT6 — Omega (2016–2020)
The Cadillac CT6 appears in the NICB VIN manuals for model years 2016 through 2020: 2.0L turbo, 3.6L and 3.0L twin turbo series in Standard, Luxury Collection, Premium Collection and Platinum Collection trims in 2016; Luxury, Premium Luxury and Platinum trims from 2017, with a 2.0L turbo plug-in hybrid (PHEV) series in 2017–2019; Sport and 4.2L twin turbo series in 2019 (the 2019 manual prints a 4.2L twin turbo V-Sport, the 2020 manual a V-Series); and only 3.6L and 4.2L twin turbo series in 2020. The codes come from GM's 2017 fleet order guide (Wayback Machine captures), which lists a 2.0L turbo LTG rear-wheel-drive car in the base and Luxury trims and a 3.6L LGX all-wheel-drive car in the base, Luxury, Premium Luxury and Platinum trims, all with an 8 speed automatic. The archive also holds GM's 2018 and 2019 CT6 order guides (copies GM Authority hosts, captured as factory documents), which extend 2018 and 2019 to the powertrain rows and to the rows listed in their Notes (the 2018 guide also prints LGW with M5X, the 2019 guide LSY, LGX and LGW with MHS); no factory list in the archive covers 2016 or 2020, whose engine and transmission years come from GM Authority's engine pages, and every other row is 2017 only unless its Notes say otherwise.
Codes
Engines
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| LGW | Engine, 3.0L V6, twin turbo | 2016–2017 | 2016 and 2017 rest on GM Authority's LGW engine page (the CT6 2016–2019, with the 8 speed 8L90 M5X; the engine left the CT6 for 2020) and the NICB manuals, which list 3.0L twin turbo series in 2016–2019; the 2017 fleet guide has no 3.0L column | single-source |
| LGW | Engine, 3.0L V6, twin turbo, DI, DOHC, VVT, automatic stop/start | 2018–2019 | 2018: Luxury, Premium Luxury, Platinum 3.0L twin turbo AWD: S (404 hp at 5700 rpm, 400 lb-ft at 2500–5100 rpm), with M5X; 2019: Platinum and Sport 3.0L twin turbo AWD: S, with MHS (SAE certification pending); both from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2018 cadillac ct6 order guide copy gm authority, p.61 · 2019 cadillac ct6 order guide copy gm authority, p.52, p.55 | confirmed |
| LGX | Engine, 3.6L V6, SIDI, DOHC, VVT, automatic stop/start, 335 hp at 6800 rpm, 284 lb-ft at 5300 rpm | 2017–2019 | 2017: CT6 3.6L AWD, Luxury 3.6L AWD, Premium Luxury, Platinum: S; 2018 and 2019 from the 2018 and 2019 order guides, both 3.6L AWD trims S (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.58 · 2019 cadillac ct6 order guide copy gm authority, p.52 | confirmed |
| LGX | Engine, 3.6L V6, SIDI, DOHC, VVT, automatic stop/start, 335 hp at 6800 rpm, 284 lb-ft at 5300 rpm | 2016, 2020 | 2016 and 2020 rest only on GM Authority's LGX engine page (https://gmauthority.com/blog/gm/gm-engines/lgx/); the article does not credit GM for its codes, and no factory list in the archive covers those years | single-source |
| LSY | Engine, 2.0L turbo, I4, SIDI, automatic stop/start | 2019 | 2019: Luxury 2.0L turbo RWD and Premium Luxury 2.0L turbo RWD: S (printed NEW!, SAE certification pending); replaces LTG in the 2019 guide; from the 2019 CT6 order guide (a GM document) ⛭ GM factory document — 2019 cadillac ct6 order guide copy gm authority, p.52 | confirmed |
| LTA | Engine, 4.2L V8, twin turbo | 2019–2020 | GM Authority's LTA engine page gives the CT6 Platinum and the CT6-V for 2019–2020 with the 10L90 transmission; the NICB manuals list 4.2L twin turbo series in 2019–2020 | single-source |
| LTG | Engine, 2.0L turbo, I4, DI, DOHC, VVT, automatic stop/start, 265 hp at 5500 rpm, 295 lb-ft at 3000–4000 rpm | 2017–2018 | CT6 2.0L RWD, Luxury 2.0L RWD: S; the NICB manuals list 2.0L turbo series in 2016–2019 but give no RPO code; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide lists LSY for the 2.0L turbo instead ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.58 | confirmed |
Transmissions
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| M5N | Transmission, 8 speed automatic | 2017–2018 | 2017: all trims: S; 2018 from the 2018 CT6 order guide: S with the 2.0L turbo and 3.6L cars (a GM document) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.59 | confirmed |
| M5N | Transmission, 8 speed automatic | 2016 | 2016 rests only on GM Authority's LGX engine page (8L45, with the 3.6L; https://gmauthority.com/blog/gm/gm-engines/lgx/); the article does not credit GM for its codes, and no factory list in the archive covers that year | single-source |
| M5X | Transmission, 8 speed automatic, 8L90 | 2016–2017 | with the 3.0L twin turbo LGW, as GM Authority's LGW engine page gives it; no factory list in the archive shows it; GM Authority's LGW page also gives it for 2019, but the 2019 CT6 order guide prints MHS for every 2019 trim including the 3.0L cars, so 2019 is dropped | single-source |
| M5X | Transmission, 8 speed automatic, 8L90 | 2018 | 2018: Luxury, Premium Luxury, Platinum 3.0L twin turbo AWD: S, with LGW; from the 2018 CT6 order guide (a GM document) ⛭ GM factory document — 2018 cadillac ct6 order guide copy gm authority, p.61 | confirmed |
| MHS | Transmission, 10 speed automatic, 10L90 | 2019 | 2019: all Luxury, Premium Luxury, Platinum and Sport trims, with LSY, LGX and LGW: S (printed NEW!); from the 2019 CT6 order guide (a GM document) ⛭ GM factory document — 2019 cadillac ct6 order guide copy gm authority, p.53, p.55 | confirmed |
| MHS | Transmission, 10 speed automatic, 10L90 | 2020 | GM Authority's LTA engine page names it for the 4.2L twin turbo, and its LGX page gives the 2020 CT6 3.6L a 10 speed MHS; no factory list in the archive shows 2020 | single-source |
Axles
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| F46 | Drivetrain, all-wheel drive | 2017–2019 | CT6 3.6L, Luxury 3.6L, Premium Luxury, Platinum: S; 2.0L RWD: not available; the guide prints a 3.27 rear axle ratio standard on all trims with no code; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.57 · 2019 cadillac ct6 order guide copy gm authority, p.51 | confirmed |
Packages & Trims
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| 1SA | Equipment group, CT6 base trim, 2.0L turbo, rear-wheel drive | 2017 | column heading of the guide's equipment pages (model 6KH69) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| 1SB | Equipment group, CT6 base trim, 3.6L, all-wheel drive | 2017 | column heading of the guide's equipment pages (model 6KH69) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| 1SC | Equipment group, Luxury, 2.0L turbo, rear-wheel drive | 2017 | column heading of the guide's equipment pages (model 6KJ69) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| 1SD | Equipment group, Luxury, 3.6L, all-wheel drive | 2017 | column heading of the guide's equipment pages (model 6KJ69) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| 1SF | Equipment group, Premium Luxury, 3.6L, all-wheel drive | 2017 | column heading of the guide's equipment pages (model 6KL69); the pages' text extraction pairs each trim name with the code printed after it, so the plain pairing reads 1SF as Platinum, but the model columns (6KJ69 Luxury, 6KL69, 6KM69) place Premium Luxury under 1SF and Platinum under 1SJ ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| 1SJ | Equipment group, Platinum, 3.6L, all-wheel drive | 2017 | column heading of the guide's equipment pages (model 6KM69); the page heading also names a 3.0L twin turbo all-wheel-drive car, but the Platinum column shows the LGX standard ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| DRZ | Enhanced Vision and Comfort Package | 2017–2018 | Luxury: O; Premium Luxury, Platinum: S; base: not available; rear camera mirror, ventilated front seats, heated rear outboard seats and UltraView sunroof (the seats only with KA6); 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide reuses DRZ for the Rear Camera Mirror (its package is Y41) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.1, p.7 | confirmed |
| F55 | Active Chassis Package | 2017–2018 | Luxury 3.6L, Premium Luxury: O; Platinum: S; Magnetic Ride Control, 20 inch all-season tires (QP1), RQA wheels and active rear steering (NYS); 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide prints F55 as Magnetic Ride Control only (the package is Y43) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.57, p.60 | confirmed |
| KA6 | Comfort Package | 2017 | Luxury, Premium Luxury: O; base, Platinum: not available; ventilated front seats and heated rear outboard seats; only with DRZ ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| PDH | LPO, Interior Protection Package | 2017–2019 | all trims: dealer-installed; all-weather floor mats (VAV) and cargo mat (VLI); new for 2017; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.20, p.28 · 2019 cadillac ct6 order guide copy gm authority, p.21, p.26 | confirmed |
| PDR | LPO, Sport Package | 2017–2018 | dealer-installed; 2.0L RWD trims with the black ground effects (5VM), 3.6L CT6, Luxury and Premium Luxury with the VTD ground effects, both with the rear spoiler (SB2); Platinum: not available; not with PDT; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide prints no entry for it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.23, p.29 | confirmed |
| PDT | LPO, Exterior Accent Package | 2017–2018 | all trims: dealer-installed; 20 inch Midnight Silver wheels (5JO) and rear spoiler (SB2); not with PDR; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide prints no entry for it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.23, p.29 | confirmed |
| UEU | Driver Awareness and Convenience Package | 2017–2018 | base: O; Luxury, Premium Luxury, Platinum: S; includes the navigation radio (IO6), safety alerts, heated front seats, IntelliBeam, power-folding mirrors and the UltraView sunroof on the base car; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide reuses UEU for Forward Collision Alert (its package is Y65) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.1, p.7 | confirmed |
| UGN | Driver Assist Package | 2017–2018 | Premium Luxury: O; Platinum: S; adaptive cruise (KSG), Enhanced Night Vision (UV3) and front and rear automatic braking (UVZ); 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide reuses UGN for Forward Automatic Braking (its Driver Assist Package is Y66) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.5, p.10 | confirmed |
| UWG | Rear Seat Package | 2017–2018 | Luxury, Premium Luxury: O; Platinum: S; rear seat infotainment and quad-zone climate control (C24); not with WCN; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide reuses UWG for rear seat infotainment (its package is Y4Z) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.1, p.7 | confirmed |
| ZR3 | Livery package | 2017–2019 | all trims: O; for funeral, hotel and livery operators; replaces the powertrain limited warranty; new for 2017; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.58 · 2019 cadillac ct6 order guide copy gm authority, p.53, p.55 | confirmed |
Equipment
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| 5JO | LPO, Wheels, 20 inch Midnight Silver aluminum | 2017–2019 | all trims: dealer-installed; included with PDT; not with SHH, RT9 or SFE; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.22, p.29 · 2019 cadillac ct6 order guide copy gm authority, p.22, p.27 | confirmed |
| 5RU | LPO, Trunk sill plate, illuminated | 2017 | dealer-installed ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| 5VM | LPO, Ground effects package, black | 2017–2018 | 2.0L RWD trims: dealer-installed; included with PDR and only with it; new for 2017; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide prints no entry for it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.23 | confirmed |
| AL0 | Airbag, passenger sensing system | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| AQ9 | Seats, front bucket, 20-way driver and front passenger, 4-way power pneumatic lumbar, massage, 4-way manual head restraints | 2017 | Platinum: S; semi-aniline leather with Chevron perforated inserts on the color page ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| AR7 | Seats, front bucket, 14-way driver and front passenger, 2-way power lumbar, 4-way manual head restraints | 2017 | base: S; leather seating surfaces on the color page ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| AR9 | Seats, front bucket, 16-way driver and front passenger, 4-way power pneumatic lumbar, 4-way manual head restraints | 2017 | Luxury, Premium Luxury: S; leather seating surfaces, with Chevron perforated inserts when DRZ or KA6 is ordered ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| AX7 | Safety belt tightening, automatic | 2017 | base: O with UEU; Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| AYX | Airbags, driver and front passenger frontal, front seat thorax and pelvic, side curtain, driver and front passenger knee | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| B7G | Sill plates, illuminated | 2017 | Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| BTV | Remote start | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| C24 | Climate control, quad-zone automatic, individual front and rear settings | 2017 | Luxury, Premium Luxury: O; included with UWG and only with it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| C3U | Sunroof, UltraView, power, independent front and rear shade control | 2017 | base: O with UEU; Luxury: O with DRZ; Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| CJ2 | Climate control, dual-zone automatic | 2017 | upgradeable to C24 when UWG is ordered; Platinum: not available ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| DD8 | Mirror, inside rearview, auto-dimming | 2017 | upgradeable to the rear camera mirror of DRZ ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| DNP | Mirrors, outside, heated, power-adjustable, power-folding, driver-side auto-dimming, body-color, integrated turn signal indicators | 2017 | base: O; included with UEU and only with it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| DWK | Mirrors, outside, heated, power-adjustable, manual-folding, turn signal indicators | 2017 | base; upgradeable to DNP ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| IO5 | Audio system, Cadillac CUE information and media control, AM/FM stereo, 10.2 inch diagonal color display, three USB ports, auxiliary audio port, Natural Voice Recognition, Apple CarPlay and Android Auto | 2017 | base; upgradeable to IO6 when UEU is ordered ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| IO6 | Audio system, Cadillac CUE information and media control with embedded navigation, AM/FM stereo, 10.2 inch diagonal color display, three USB ports, auxiliary audio port, Natural Voice Recognition, Apple CarPlay and Android Auto | 2017 | base: O; included with UEU and only with it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| J55 | Brakes, 4-wheel antilock, 4-wheel disc | 2017 | CT6 2.0L RWD, Luxury 2.0L RWD: S; 3.6L AWD trims: not available ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| J56 | Brakes, 4-wheel antilock, 4-wheel disc, heavy duty | 2017 | 3.6L AWD trims: S; 2.0L RWD trims: not available ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| JE2 | Brake linings, performance | 2017 | Luxury 3.6L, Premium Luxury, Platinum: O; included with RE2 and only with it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| K05 | Engine block heater | 2017–2019 | all trims: O; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.58, p.61 · 2019 cadillac ct6 order guide copy gm authority, p.52, p.55 | confirmed |
| K34 | Cruise control, electronic, automatic | 2017 | upgradeable to KSG ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| KA1 | Seats, heated, driver and front passenger | 2017 | base: O with UEU; Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| KC7 | Power outlet, rear auxiliary | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| KEM | Air cleaner, ionizing | 2017 | Luxury, Premium Luxury: O with C24; Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| KL9 | Automatic stop/start | 2017–2019 | all trims: S; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.58, p.61 · 2019 cadillac ct6 order guide copy gm authority, p.52, p.55 | confirmed |
| KSG | Cruise control, adaptive, full-speed range | 2017 | Premium Luxury: O with UGN; Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| KU9 | Seats, ventilated, driver and front passenger cushions and seatbacks | 2017 | Luxury, Premium Luxury: O with DRZ and KA6; Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| NKD | Engine sound enhancement, noise control | 2017 | Luxury, Premium Luxury: O with UQH; Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| NP5 | Steering wheel, leather-wrapped | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| NYS | Steering, active rear | 2017–2019 | Luxury 3.6L, Premium Luxury: O; included with F55 and only with it; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.59, p.61 · 2019 cadillac ct6 order guide copy gm authority, p.53, p.55 | confirmed |
| PYZ | Wheel, compact spare, with compact spare tire | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| Q6M | Wheels, 19 x 8.5 ultra-bright machined aluminum, multi-spoke, Pearl Nickel pockets | 2017 | upgradeable to RQA ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2017 cadillac ct6 fleet order guide wayback, p.6 | confirmed |
| QP1 | Tires, 245/40R20 XL all-season, blackwall | 2017 | Luxury 3.6L, Premium Luxury: O; included with RQA and only with it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| R3X | Tires, P235/50R18 all-season, blackwall | 2017 | the guide's availability marks for it are not legible ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| RE2 | Tires, 245/40ZR20, summer only | 2017 | Luxury 3.6L, Premium Luxury: O with F55; Platinum: O; with JE2 performance brake linings ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| RJZ | Tires, P245/45R19 all-season, blackwall | 2017 | included with RT9 or Q6M and only with them ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| RQ9 | Wheels, 20 x 8.5 aluminum, 5-split spoke, Manoogian Silver premium painted finish, 5 chrome inserts | 2017 | the guide's availability marks for it are not legible ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| RQA | Wheels, 20 x 8.5 ultra-bright machined aluminum, multi-spoke, Manoogian Silver pockets | 2017–2018 | Luxury 3.6L, Premium Luxury: O; included with F55 and only with it; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide prints no entry for it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.53, p.56 | confirmed |
| RT4 | Wheels, 18 x 8 aluminum, multi-spoke, Blade Silver painted finish | 2017–2018 | upgradeable to RT9 or Q6M; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide prints no entry for it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2017 cadillac ct6 fleet order guide wayback, p.6 · 2018 cadillac ct6 order guide copy gm authority, p.52 | confirmed |
| RT9 | Wheels, 19 x 8.5 aluminum, multi-spoke, Sterling Silver premium painted finish | 2017 | upgrade from RT4; with RJZ tires ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2017 cadillac ct6 fleet order guide wayback, p.6 | confirmed |
| RWU | LPO, Cargo area organizer, collapsible | 2017–2019 | base, Luxury, Premium Luxury: dealer-installed; Platinum: not available; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.21, p.28 · 2019 cadillac ct6 order guide copy gm authority, p.21, p.26 | confirmed |
| RYT | LPO, First aid kit, Cadillac edition | 2017–2019 | all trims: dealer-installed; not available at start of production; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.21, p.28 · 2019 cadillac ct6 order guide copy gm authority, p.21, p.26 | confirmed |
| S08 | LPO, Highway safety kit | 2017–2019 | all trims: dealer-installed; first aid kit, tools, booster cables and flashlight among its contents; not available at start of production; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.21, p.28 · 2019 cadillac ct6 order guide copy gm authority, p.21, p.26 | confirmed |
| S0M | LPO, Door sill plates, illuminated | 2017 | base: dealer-installed; Luxury, Premium Luxury, Platinum: not available ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| SB2 | LPO, Rear spoiler, flush-mount | 2017–2018 | all trims: dealer-installed; included with PDR and PDT; Crystal White Tricoat, Radiant Silver Metallic, Stellar Black Metallic or Black Raven paint only; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide prints no entry for it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.24, p.30 | confirmed |
| SD4 | LPO, Tire inflator | 2017 | all trims: dealer-installed ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| SFE | LPO, Wheel locks | 2017–2019 | base: dealer-installed; not with the 20 inch LPO wheels; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.24 · 2019 cadillac ct6 order guide copy gm authority, p.22 | confirmed |
| SHH | LPO, Wheels, 20 inch polished aluminum | 2017–2019 | all trims: dealer-installed; not with 5JO; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.21, p.29 · 2019 cadillac ct6 order guide copy gm authority, p.22, p.27 | confirmed |
| T61 | Daytime running lamps | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| TC2 | Decklid, power, hands-free | 2017 | Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| TQ5 | Headlamps, IntelliBeam, automatic high beam on and off | 2017 | base: O with UEU; Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| U2M | Audio system, SiriusXM satellite radio and HD Radio | 2017 | all trims; 3 month All Access trial ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UDV | Gauge cluster, 12 inch color, driver personalization, warning messages and vehicle information | 2017 | Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UE1 | OnStar Guidance Plan, 1 year | 2017 | all trims; Automatic Crash Response, Stolen Vehicle Assistance, Roadside Assistance, Turn-by-Turn Navigation and Advanced Diagnostics; the trial excludes Hands-Free Calling ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UE4 | Following Distance Indicator | 2017 | base: O with UEU; Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UFG | Rear Cross Traffic Alert | 2017 | base: O with UEU; Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UG1 | Universal Home Remote | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UGE | Tail lamps, rear, LED | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| UHS | Gauge cluster, 8 inch color, driver personalization, warning messages and vehicle information | 2017 | base, Luxury: S; Premium Luxury, Platinum: not available ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UHX | Lane Keep Assist with Lane Departure Warning | 2017 | base: O with UEU; Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UHY | Automatic braking, low speed collision mitigation | 2017 | base: O with UEU; Luxury: S; Premium Luxury: included, upgradeable to UGN; Platinum: not available ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| UKC | Side Blind Zone Alert | 2017 | base: O with UEU; Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UKJ | Front pedestrian braking | 2017 | base: O with UEU; Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| UQA | Audio system feature, Bose premium 8-speaker system | 2017 | base: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UQH | Audio system feature, Bose Panaray sound system, 34 speakers | 2017 | Luxury, Premium Luxury: O; Platinum: S; requires ventilated front seats (KU9), and on Luxury the UltraView sunroof ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UQS | Audio system feature, Bose premium surround sound 10-speaker system | 2017 | Luxury, Premium Luxury; upgradeable to UQH ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UTU | Sensor, inclination | 2017 | Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UTV | Sensor, vehicle interior movement | 2017 | Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UV3 | Enhanced Night Vision | 2017 | Premium Luxury: O with UGN; Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UVD | Steering wheel, heated | 2017 | Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UVH | Surround Vision, bird's-eye view of the vehicle | 2017 | Luxury, Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| UVZ | Automatic braking, front and rear | 2017 | Premium Luxury: O with UGN; Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 | confirmed |
| V33 | Tool kit, road emergency | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| VAV | LPO, Floor mats, all-weather | 2017 | all trims: dealer-installed; included with PDH ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| VK3 | License plate bracket, front | 2017–2019 | all trims: O; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.21, p.29 · 2019 cadillac ct6 order guide copy gm authority, p.21, p.27 | confirmed |
| VLI | LPO, Cargo mat, all-weather | 2017–2019 | all trims: dealer-installed; included with PDH; new for 2017; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.21, p.28 · 2019 cadillac ct6 order guide copy gm authority, p.21, p.26 | confirmed |
| VRV | LPO, Splash guards, custom molded, painted | 2017 | all trims; Crystal White Tricoat, Radiant Silver Metallic, Stellar Black Metallic or Black Raven paint only; the guide marks it not available to order at the time ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
| VTD | LPO, Ground effects package | 2017–2018 | CT6 3.6L, Luxury 3.6L, Premium Luxury: dealer-installed; included with PDR and only with it; Crystal White Tricoat, Radiant Silver Metallic, Stellar Black Metallic or Black Raven paint only; not with VRV; new for 2017; 2018 from the 2018 CT6 order guide (a GM document); the 2019 guide prints no entry for it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 · 2018 cadillac ct6 order guide copy gm authority, p.23, p.29 | confirmed |
| VV4 | OnStar 4G LTE and built-in Wi-Fi hotspot | 2017 | all trims; 3 month or 3GB data trial ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| VYW | LPO, Floor mats, premium carpeted | 2017 | all trims: dealer-installed; not with the Very Light Cashmere interior (HK1) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| W0A | LPO, Trunk mat, carpeted | 2017 | dealer-installed ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| W2D | LPO, Cargo net | 2017–2019 | all trims: dealer-installed; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 · 2018 cadillac ct6 order guide copy gm authority, p.21, p.28 · 2019 cadillac ct6 order guide copy gm authority, p.21, p.26 | confirmed |
| WCN | LPO, CD player, single slot | 2017 | base, Luxury, Premium Luxury: dealer-installed; Platinum: not available; not with UWG ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| XVR | Surround Vision recorder | 2017 | Premium Luxury, Platinum: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
| ZCD | Tire, compact spare, T135/70R18, blackwall | 2017 | all trims: S ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.3 | confirmed |
Paint
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| G1E | Red Passion Tintcoat | 2017 | touch-up paint WA-405Y; extra charge; not with the Cinnamon interior ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 | confirmed |
| G1M | Dark Adriatic Blue Metallic | 2017–2018 | touch-up paint WA-410Y; extra charge, none on Platinum; not with the Cinnamon interior; 2018 from the 2018 CT6 order guide (a GM document) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2018 cadillac ct6 order guide copy gm authority, p.62 | confirmed |
| G1W | Crystal White Tricoat | 2017–2019 | touch-up paint WA-140X; extra charge; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2018 cadillac ct6 order guide copy gm authority, p.62 · 2019 cadillac ct6 order guide copy gm authority, p.56 | confirmed |
| G7Q | Phantom Gray Metallic | 2017 | touch-up paint WA-139X; extra charge, none on Platinum; new for 2017 ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 | confirmed |
| GA6 | Moonstone Metallic | 2017 | touch-up paint WA-380A; extra charge, none on Platinum ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 | confirmed |
| GAN | Radiant Silver Metallic | 2017–2019 | touch-up paint WA-636R; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2018 cadillac ct6 order guide copy gm authority, p.62 · 2019 cadillac ct6 order guide copy gm authority, p.56 | confirmed |
| GB8 | Stellar Black Metallic | 2017–2019 | touch-up paint WA-384A; extra charge, none on Platinum; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2018 cadillac ct6 order guide copy gm authority, p.62 · 2019 cadillac ct6 order guide copy gm authority, p.56 | confirmed |
| GBA | Black Raven | 2017–2019 | touch-up paint WA-8555; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2018 cadillac ct6 order guide copy gm authority, p.62 · 2019 cadillac ct6 order guide copy gm authority, p.56 | confirmed |
| GC8 | Dark Emerald Metallic | 2017 | touch-up paint WA-387A; extra charge, none on Platinum; not with the Cinnamon interior ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 | confirmed |
| GGA | Deep Amethyst Metallic | 2017–2018 | touch-up paint WA-409B; extra charge, none on Platinum; not with the Cinnamon interior; new for 2017; 2018 from the 2018 CT6 order guide (a GM document) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2018 cadillac ct6 order guide copy gm authority, p.62 | confirmed |
| GMU | Bronze Dune Metallic | 2017–2019 | touch-up paint WA-441B; extra charge, none on Platinum; not with the Cinnamon interior; new for 2017; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.1 · 2018 cadillac ct6 order guide copy gm authority, p.62 · 2019 cadillac ct6 order guide copy gm authority, p.56 | confirmed |
Interior Trim
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| HK1 | Very Light Cashmere with Maple Sugar accents | 2017 | Platinum, semi-aniline full leather seats with Chevron perforated inserts and Eucalyptus wood trim; the color page prints the code with its footnote digit, and the VYW entry names it ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.2 | confirmed |
Internal / Process
| Code | Description | Years | Models/Notes | Confidence |
|---|---|---|---|---|
| FE9 | Emissions, federal requirements | 2017–2019 | internal code; all trims: O; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.57, p.60 · 2019 cadillac ct6 order guide copy gm authority, p.51, p.54 | confirmed |
| NB8 | Emissions override, California | 2017–2019 | internal code; all trims: O; lets a dealer in a California-emissions state order federal emissions for a car registered in a federal state; requires FE9; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.57, p.60 · 2019 cadillac ct6 order guide copy gm authority, p.52, p.54 | confirmed |
| NB9 | Emissions override, state-specific | 2017–2019 | internal code; all trims: O; switches between YF5 and NE1 emissions for the registration state; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.58, p.60 · 2019 cadillac ct6 order guide copy gm authority, p.52, p.54 | confirmed |
| NC7 | Emissions override, federal | 2017–2019 | internal code; all trims: O; requires YF5 or NE1; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.58, p.61 · 2019 cadillac ct6 order guide copy gm authority, p.52, p.55 | confirmed |
| NE1 | Emissions, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington state requirements | 2017–2019 | internal code; all trims: O; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.57, p.60 · 2019 cadillac ct6 order guide copy gm authority, p.51, p.54 | confirmed |
| YF5 | Emissions, California state requirements | 2017–2019 | internal code; all trims: O; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents) ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4 · 2018 cadillac ct6 order guide copy gm authority, p.57, p.60 · 2019 cadillac ct6 order guide copy gm authority, p.51, p.54 | confirmed |
Sources
Factory documents (T1)
cadillac/2017-cadillac-ct6-fleet-order-guide-wayback.txt— 2017 Cadillac CT6 — GM Fleet Order Guide (Wayback Machine captures)cadillac/2018-cadillac-ct6-order-guide-copy-gm-authority.txt— 2018 Cadillac CT6 — GM order guide (GM Authority copy); from https://gmauthority.com/blog/wp-content/uploads/2017/02/2018-Cadillac-CT6-Order-Guide.pdf (updated May 19, 2017), archival-verifiedcadillac/2019-cadillac-ct6-order-guide-copy-gm-authority.txt— 2019 Cadillac CT6 — GM order guide, July 13, 2018 (GM Authority copy); from https://gmauthority.com/blog/wp-content/uploads/2018/07/2019-Cadillac-CT6-Order-Guide-July-13-2018.pdf, archival-verified
Other sources
- GM Authority (T2; read with the Firecrawl CLI on 2026-10-14 because direct fetches answer 403; one request at a time through the shared throttle, at least 10 seconds apart; no block, 429, login wall or CAPTCHA met):
- GM Authority order-guide pages (origin of the two captured order guides above, which are cited as [FD]; index pages read with the Firecrawl CLI on 2026-10-14 under the same conditions; no block, 429, login wall or CAPTCHA met):
- https://gmauthority.com/blog/gm/cadillac/ct6/2018-cadillac-ct6/2018-cadillac-ct6-order-guide/ (index page for the 2018 guide)
- https://gmauthority.com/blog/gm/cadillac/ct6/2019-cadillac-ct6/2019-cadillac-ct6-order-guide/ (index page for the 2019 guide)
- GM Authority's 2020 CT6 order-guide page (https://gmauthority.com/blog/gm/cadillac/ct6/2020-cadillac-ct6/2020-cadillac-ct6-order-guide/) answered with a not-found page; no 2020 guide was read
- NICB VIN manuals:
docs/reference/nicb/nicb2016-gm.txtp.44 (2016 first year),docs/reference/nicb/nicb2017-gm.txtp.45–46,docs/reference/nicb/nicb2018-gm.txtp.45,docs/reference/nicb/nicb2019-gm.txtp.45 anddocs/reference/nicb/nicb2020-gm.txtp.42 (2020 last year): the CT6 series, trims and engines named in the overview.