- 2016–2017 Factory-verified
SL: S, with Bluetooth for phone; SLE-1, SLE-2, SLT, Denali: S, a second entry adding SiriusXM and IntelliLink, upgradeable to UHQ
UFU Factory-verified
Also documented for BuickChevrolet
Documented applications
This page aggregates every documented appearance of UFU in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.