Audio system with navigation, AM/FM/XM stereo, single CD/DVD and MP3 player, 40GB hard drive, voice-activated navigation, time-shift radio, console multi-function controller

Years 2011–12 Models 2

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Also described as Audio system, AM/FM/SiriusXM stereo with navigation, single CD/DVD player and MP3 player

Also documented for Chevrolet GMC

Documented applications

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

2012 Confirmed

part of 1ST (GM Authority 2012 RPO list); deleted for 2013 (GM Authority 2013 changes)

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

2011 Confirmed

deleted for 2012 (GM's 2012 list)

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