- 1998–2001 Factory-verified
Platform-list code; no source shows whether the Bravada offered it
E55 Factory-verified
Also documented for BuickCadillacChevroletGMCHummer
Documented applications
This page aggregates every documented appearance of E55 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.