AM4 Factory-verified

GMC · Regular Production Option

Seat, rear, split back, folding, custom

Years 2004–09 Models 1 Factory citations 6
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Also documented for ChevroletOldsmobilePontiac

Documented applications

This page aggregates every documented appearance of AM4 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.