- 2025–2026 Factory-verified
only in: Avenir; the 2025 guide marks it late availability; GM Authority reports it dropped for 2027; seat code AR9, front buckets (7-passenger seating)
H7M Factory-verified
Documented applications
This page aggregates every documented appearance of H7M in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.