- 2000 Factory-verified
1SH Factory-verified
Also described as Package, option 08
Also documented for BuickCadillacChevrolet
Documented applications
- 2000 Factory-verified
- 2000 Factory-verified
This page aggregates every documented appearance of 1SH in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.