- 2002–2007 Factory-verified
GQ1 Factory-verified
Also described as Axle, standard ratio
Also documented for ChevroletGMCOldsmobilePontiacSaturn
Documented applications
- 2005–2007 Factory-verified
This page aggregates every documented appearance of GQ1 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.