- 2003–2008 Factory-verified
A26 Factory-verified
Also documented for BuickCadillacChevroletOldsmobilePontiac
Documented applications
- 2000, 2001 Factory-verified
- 1998–2002 Factory-verified
- 2000–2002 Factory-verified
This page aggregates every documented appearance of A26 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.