- 2000–2001 Factory-verified
T91 Factory-verified
Documented applications
- 1998–1999 Factory-verified
- 1998–1999 Factory-verified
- 1998–2001 Factory-verified
This page aggregates every documented appearance of T91 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.