- 1998–2001 Factory-verified
GT5 Factory-verified
Also documented for BuickCadillacChevroletGMCHummer
Documented applications
- 2002–2004 Factory-verified
the list marks it a duplicate of GT8;
This page aggregates every documented appearance of GT5 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.