- 1998–2000 Factory-verified
Z5X Factory-verified
Also documented for BuickCadillacChevroletGMCHummerOldsmobileSaturn
Documented applications
- 2000 Factory-verified
- 2005–2006 Factory-verified
- 2003–2004 Factory-verified
This page aggregates every documented appearance of Z5X in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.