- 2016–2019 Factory-verified
2016: 1SV: S; 1SP: O (the 2016 guide calls it aluminum design 2); 2017: 1SV: included; 1SP: O at no cost; 2018–2019: 1SV: S; 1SP: O; 1SH: not available
RQA Factory-verified
Also documented for CadillacChevrolet
Documented applications
This page aggregates every documented appearance of RQA in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.