- 1997–2001 Factory-verified
base coupe and sedan; the 1997 coupe seat chart (p.91) prints the code as 128, an OCR reading of 12B that the citation check does not accept, so 1997 is cited from the sedan chart on p.95
GM Heritage factory kit — 1997 Chevrolet Cavalier, p.95.GM Heritage factory kit — 1998 Chevrolet Cavalier, p.40.GM Heritage factory kit — 2000 Chevrolet Cavalier, p.45.
12B Factory-verified
Also documented for Pontiac
Documented applications
This page aggregates every documented appearance of 12B in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.