- 2000 Factory-verified
1SJ Factory-verified
Also described as Package, option 09
Also documented for CadillacChevrolet
Documented applications
- 2000 Factory-verified
- 2000 Factory-verified
This page aggregates every documented appearance of 1SJ in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.