EN4 Factory-verified

Hummer · Regular Production Option

Cover, rear compartment, hard, rear compartment cargo

Years 2006–09 Models 1 Factory citations 3
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Also documented for CadillacChevroletGMC

Documented applications

This page aggregates every documented appearance of EN4 in the Hummer reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.