- 1998–1999 Factory-verified
A66 Factory-verified
Also documented for BuickChevrolet
Documented applications
- 1998–1999 Factory-verified
the 1998–1999 lists are the DeVille's; may be DeVille equipment
- 1998–2001 Factory-verified
This page aggregates every documented appearance of A66 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.