- 2001, 2003–2004 Factory-verified
C86 Factory-verified
Also described as Manual transmission, shift indicator lamp (tell-tale), suppression
Also documented for Chevrolet
Documented applications
- 2001, 2003–2004 Factory-verified
- 2001 Factory-verified
This page aggregates every documented appearance of C86 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.