JJA Factory-verified

GMC · Regular Production Option

PT dress subassembly, installed (modular optimization method only)

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

Documented applications

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