Remote Keyless Entry Inoperative (Reprogram Liftgate Module) 2002-2003 Chevrolet TrailBlazer, TrailBlazer EXT. 2002-2003 GMC Envoy, Envoy XL. 2002-2003 Oldsmobile Bravada. Condition. Some customers may comment that the Remote Keyless Entry (RKE) is inoperative at times. More @Wikipedia
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