- 2023–2024, 2026 Factory-verified
JCF Factory-verified
Also described as Brake rotors, FNC
Also documented for CadillacChevrolet
Documented applications
- 2025–2026 Factory-verified
- 2025–2026 Factory-verified
- 2025–2027 Factory-verified
- 2025–2027 Factory-verified
S on all trims
This page aggregates every documented appearance of JCF in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.