Audio system feature, Bose Centerpoint surround sound, premium 11-speaker system, sound-stage signal processor

Years 2008–09, 2015, 2017–19, 2025–27 Models 4 Factory citations 9

Also described as Speaker system, premium audio, branded, with surround amplifierAudio system feature, Bose Premium 9-speaker systemAudio system feature, Bose Centerpoint surround sound, 11 speaker premium system

Also documented for Cadillac Chevrolet GMC Hummer Saturn

Documented applications

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.

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.1.

LaCrosse — E2XX, 3rd gen (2017–2019)

2017–2019 Factory-verified

2019: Avenir: S; Sport Touring, Essence, Premium: O; with WPY

GM factory document — 2017 buick lacrosse fleet order guide wayback, p.2.
GM factory document — 2018 buick lacrosse order guide copy gm authority, p.13.
GM factory document — 2019 buick lacrosse order guide copy gm authority, p.2.

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

2015 Factory-verified

2015: 1SL: O; 1SP, 1SR: S; part of PDU

GM factory document — 2015 buick lacrosse fleet order guide wayback, p.2.

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