V78 Factory-verified
Also documented for BuickCadillacChevroletHummerOldsmobilePontiacSaturn
Documented applications
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; the 2023 Upfitter list reads Vehicle Statement - Vehicle Label Content - No Cert Statement (English text)
This page aggregates every documented appearance of V78 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.