- 1998–2002 Factory-verified
U1S Factory-verified
Also documented for BuickCadillacChevroletGMCOldsmobilePontiac
Documented applications
- 1998–2002 Factory-verified
- 1998–2001 Factory-verified
This page aggregates every documented appearance of U1S in the Saturn reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.