- 2025–2027 Factory-verified
S on all trims
AQP Factory-verified
Also described as Headrest, rear center
Also documented for CadillacChevroletGMC
Documented applications
- 2016 Factory-verified
2016: all trims: S
This page aggregates every documented appearance of AQP in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.