Sensor indicator, rear parking assist

Years 2001–09, 2012, 2015–19, 2021, 2025–27 Models 18 Factory citations 44

Also described as Rear park assist, ultrasonic, with audible warningRear park assist, ultrasonic with audible warningRear Park AssistPark assist, rear, ultrasonicRear park assistRear parking assist, ultrasonic, audible warningSensor indicator, near obstacle presence detectionPark assist, rearParking assist, rear, ultrasonic, audible warningSensor, indicator, near obstacle presence detection

Also documented for Cadillac Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

Cascada — Delta II (2016–2019)

2016, 2018–2019 Factory-verified

1SV: S; 1SP, 1SH: not available; the 2016 guide reads rear parking assist; 2017 is left out: that guide prints it only as included in the 1SV group (page 13), so it does not support the year (rule 11(a))

GM factory document — 2016 buick cascada order guide copy gm authority, p.3, p.8.
GM factory document — 2018 buick cascada order guide copy gm authority, p.3, p.14.
GM factory document — 2019 buick cascada order guide copy gm authority, p.3, p.14.

Enclave — C1XX (2018–2024)

2018, 2021 Factory-verified

2018: Base, Essence: S; 2021: Essence, from GM Authority's 2022 changes page, which replaces it with UD5

GM factory document — 2018 buick enclave fleet order guide wayback, p.1.

Enclave — Lambda / GMT967 (2008–2017)

2008–2009 Factory-verified

GM factory document — 2008 buick enclave rpo code list, p.1.
GM factory document — 2009 buick enclave rpo code list, p.1.

Enclave — VSS-S (2025–2027)

2025–2027 Factory-verified

2025–2026: S on all trims; 2027: Preferred, Sport Touring: S; Avenir: not offered; replaced by UKZ when WQ1 is ordered

GM factory document — 2025 buick all new enclave fleet order guide, p.4.
GM factory document — 2026 buick enclave fleet order guide, p.4.
GM factory document — 2027 buick enclave fleet order guide, p.5.

Encore GX — VSS-F (2020–2027)

2025–2027 Factory-verified

2025–2026: Preferred, Sport Touring, Avenir: O. 2027: Sport Touring, Avenir: O

GM factory document — 2025 buick encore gx fleet order guide, p.21.
GM factory document — 2026 buick encore gx fleet order guide, p.23.
GM factory document — 2027 buick encore gx fleet order guide, p.21.

Envision — D2XX, imported from China (2016–2020)

2017–2019 Factory-verified

2019: 1SV, 1SD, 1SL: S

GM factory document — 2017 buick envision order guide copy gm authority, p.5, p.19.
GM factory document — 2018 buick envision order guide copy gm authority, p.5, p.17.
GM factory document — 2019 buick envision order guide copy gm authority, p.6, p.20.

Envision — E2XX (2021–2027)

2025–2027 Factory-verified

2027: all trims: S

GM factory document — 2025 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide, p.4.

Envista — VSS-F (2024–2027)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2025 buick envista fleet order guide, p.3.
GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2026 buick envista fleet order guide, p.3.

LaCrosse — E2XX, 3rd gen (2017–2019)

2017–2019 Factory-verified

2019: all trims: S

GM factory document — 2017 buick lacrosse fleet order guide wayback, p.3.
GM factory document — 2018 buick lacrosse order guide copy gm authority, p.5.
GM factory document — 2019 buick lacrosse order guide copy gm authority, p.6.

LaCrosse — Epsilon II, 2nd gen (2010–2016)

2015 Factory-verified

2015: 1SL, 1SP, 1SR: S; part of PCM

GM factory document — 2015 buick lacrosse fleet order guide wayback, p.3.

LaCrosse — W-body / GMX365 (2005–2009)

2005–2009 Factory-verified

GM factory document — 2005 buick lacrosse rpo code list, p.1.
GM factory document — 2009 buick lacrosse rpo code list, p.1.

Lucerne — G-body (2006–2011)

2006–2009 Factory-verified

GM factory document — 2006 buick lucerne rpo code list, p.1.
GM factory document — 2009 buick lucerne rpo code list, p.1.

Park Avenue — G-body (1997–2005)

2001–2005 Factory-verified

The 2001-2005 lists carry this wording; most of GM's lists read the same code as rear parking assist sensor indicator.

GM factory document — 2001 buick park avenue rpo code list, p.1.
GM factory document — 2005 buick park avenue rpo code list, p.1.

Regal — E2XX (2018–2020)

2018–2019 Factory-verified

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.
GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1.
GM factory document — 2019 buick regal sportback order guide copy gm authority, p.10.

Regal — Epsilon II, 5th gen (2011–2017)

2016 Factory-verified

2016: 1SN, 1SP: S

GM factory document — 2016 buick regal order guide copy gm authority, p.5, p.21.

Rendezvous — U-body / GMT257 (2002–2007)

2002–2007 Factory-verified

The 2006 and 2007 lists read "Sensor Indicator - Rear Parking Assist". Wikipedia: rear parking sensors.

GM factory document — 2002 buick rendezvous awd rpo code list, p.1.
GM factory document — 2006 buick rendezvous awd rpo code list, p.1.
GM factory document — 2007 buick rendezvous fwd rpo code list, p.1.

Terraza — U-body / GMT201 (2005–2007)

2005–2007 Factory-verified

GM factory document — 2005 buick terraza rpo code list, p.1.
GM factory document — 2006 buick terraza rpo code list, p.1.
GM factory document — 2007 buick terraza rpo code list, p.1.

Verano — Delta II (2012–2017)

2012, 2016 Factory-verified

2016: not on every trim; the capture's trim cells are incomplete; 2012: 1SG: within the group; 1SL: S (GM 2012 ordering guide)

GM factory document — 2016 buick verano fleet order guide wayback, p.3.
GM factory document — 2012 buick verano online ordering guide copy gm authority, p.3.

This page aggregates every documented appearance of UD7 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.