- 2016–2017 Factory-verified
SL, SLE-1, SLE-2, SLT: S
FE1 Factory-verified
Also documented for BuickCadillacChevroletOldsmobilePontiacSaturn
Documented applications
This page aggregates every documented appearance of FE1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.