- 2015–2018 Factory-verified
2018 guide: 1LS, 1LT: S
AH4 Factory-verified
Also described as Seat, driver, 6-way, slide, recline and height
Also documented for Buick
Documented applications
This page aggregates every documented appearance of AH4 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.