- 2022–2023, 2025–2027 Factory-verified
2027: S on all trims
K6L Factory-verified
Also documented for BuickCadillacChevrolet
Documented applications
- 2022–2023, 2025–2027 Factory-verified
2027: S on all trims
This page aggregates every documented appearance of K6L in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.