- 2015–2017 Factory-verified
2015–2016: S on all trims
USR Factory-verified
Also described as USB port, instrument panelReceptacle, USB
Also documented for BuickCadillacChevrolet
Documented applications
- 2014–2016, 2018, 2022–2026 Factory-verified
- 2022–2023 Factory-verified
- 2022–2023 Factory-verified
This page aggregates every documented appearance of USR in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.