OnStar Fleet Guidance service, 6 months added

Years 2016–19, 2026–27 Models 11 Factory citations 22

Also described as OnStar Video Telematics with hardware, 36 monthsOnStar Fleet Guidance service, additional 6 monthsOnStar Video Telematics with hardware, 36 months of serviceOnStar Fleet Guidance Service, additional 6 months

Also documented for Cadillac Chevrolet GMC

Documented applications

Cascada — Delta II (2016–2019)

2016–2019 Factory-verified

2016: all trims: O; 2017–2019: 1SP, 1SH: O; requires UE1 and a fleet or government order type

GM factory document — 2016 buick cascada order guide copy gm authority, p.13.
GM factory document — 2017 buick cascada order guide copy gm authority, p.18.
GM factory document — 2018 buick cascada order guide copy gm authority, p.19.
GM factory document — 2019 buick cascada order guide copy gm authority, p.19.

Enclave — C1XX (2018–2024)

2018 Factory-verified

all trims: O; fleet orders; 2018: GM order guide via GM Authority

GM factory document — 2018 buick enclave order guide copy gm authority, p.29, p.37.

Enclave — VSS-S (2025–2027)

2026–2027 Factory-verified

O on all trims; fleet plan

GM factory document — 2026 buick enclave fleet order guide, p.37.
GM factory document — 2027 buick enclave fleet order guide, p.37.

Encore — Gamma II (2013–2022)

2018 Factory-verified

fleet; not on Encore 1SV

GM factory document — 2018 buick encore order guide copy gm authority, p.27.

Encore GX — VSS-F (2020–2027)

2026–2027 Factory-verified

Preferred, Sport Touring, Avenir: O

GM factory document — 2026 buick encore gx fleet order guide, p.43.
GM factory document — 2027 buick encore gx fleet order guide, p.41.

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

2017–2019 Factory-verified

2019: 1SD, 1SL, 1SN, 1SP: O; fleet or government order types; the 2019 guide limits it to sales through April 30, 2018; 2016 is left out: the 2016 guide prints it only in its RPO code index

GM factory document — 2017 buick envision order guide copy gm authority, p.26.
GM factory document — 2018 buick envision order guide copy gm authority, p.24.
GM factory document — 2019 buick envision order guide copy gm authority, p.31.

Envision — E2XX (2021–2027)

2026–2027 Factory-verified

2027: all trims: O

GM factory document — 2026 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.32.

Envista — VSS-F (2024–2027)

2026 Factory-verified

all trims: O

GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2026 buick envista fleet order guide, p.31.

LaCrosse — E2XX, 3rd gen (2017–2019)

2018 Factory-verified

2018: Preferred, Essence, Premium: O

GM factory document — 2018 buick lacrosse order guide copy gm authority, p.23.

Regal — E2XX (2018–2020)

2018 Factory-verified

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.

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

2016 Factory-verified

2016: 1SL, 1SN, 1SP, 1SX: O; requires UE1 and a fleet or government order type

GM factory document — 2016 buick regal order guide copy gm authority, p.30.

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