- 2006–2008 Factory-verified
the 2006 kit prints it on its order-guide pages; first printed as a list line in 2007
GM Heritage factory kit — 2006 Chevrolet Uplander, p.104.
T8S Factory-verified
Also documented for Buick
Documented applications
This page aggregates every documented appearance of T8S in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.