- 2002, 2003 Factory-verified
The 2002 and 2003 lists print BFO with a letter O; GM prints BF0 for the same wording elsewhere.
BF0 Factory-verified
Also documented for Hummer
Documented applications
This page aggregates every documented appearance of BF0 in the Saturn reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.