Question about 2003 GMC Yukon Denali

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I have a 2003 GMC Yukon Denali. My problem is that when the door lock button is pushed the front 2 doors lock but the back two and the hatch does not lock. I replaced the black relays on the fuse box, still nothing. They will occasionally work if I wiggle the relays around. ???

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  • yfitmaney Mar 21, 2011

    did not work

  • yfitmaney Mar 21, 2011

    Same thing happens, any other ideas

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1 Answer

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  • GMC Master
  • 14,036 Answers

TRY THIS REPROGRAMMING PROCEDURE.OBTAIN ALL REMOTE TRANSMITTERS, CLOSE ALL THE DOORS, INSERT KEY INTO THE IGNITION,DO NOT TURN THE IGNITION SWITCH,PRESS AND HOLD DOOR LOCK SWITCH IN THE UNLOCK POSITION, SWITCH IGNITION ON OFF ON OFF,RELEASE DOOR LOCK SWITCH,SYSTEM SHOULD NOW LOCK AND UNLOCK VECHICLE INDICATING PROGRAMMING MODE ACTIVATED. NOTE FOR THE EXISTING REMOTE TRANSMITTER MEMORY POSITIONS WILL BE OVERWRITTEN, PRESS AND HOLD LOCK AND UNLOCK BUTTONS FIRST REMOTE TRANSMITTER FOR 15 SECONDS, SYSTEM WILL LOCK AND UNLOCK VECHICLE INDICATING REMOTE TRANSMITTER PROGRAMMED.REPEAT THIS PROCEDURE FOR REMAINING REMOTE TRANSMITTER.YOUR VECHICLE CAN ONLY HAVE NO MORE THAN 4 REMOTE TRANSMITTERS.

Posted on Mar 19, 2011

  • Jonah Oneal Mar 21, 2011

    SOUND LIKE YOU HAVE ELECTRICAL PROBLEM. BEST TO LET DEALERSHIP CHECK IT OUT.

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