- 2026–2027 Factory-verified
touch-up WA-316E; additional charge; only on AT4; new for 2026
GFR Factory-verified
Also documented for BuickChevrolet
Documented applications
- 2025–2027 Factory-verified
touch-up WA-316E; additional charge; from 2026 only on Elevation and AT4; marked new in the 2025 guide
This page aggregates every documented appearance of GFR in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.