- 2027 Factory-verified
Preferred: S; Sport Touring, Avenir: not offered; SLW in 2025–2026 with the same wording
SP6 Factory-verified
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of SP6 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.