Question about 1999 GMC Suburban

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Power door locks not working for 1999 suburban

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Check for wires in drivers door hinge area inside wiring loom cover pulled apart

Posted on Oct 04, 2009

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My lock button on the back roof post was pushed down to lock position by a box in the cargo area. I could hear the soft click under the dash, but no locks would work. the lights would come on though. it also drained the battery.

Posted on Dec 10, 2009

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Check all fuses and relays. there is a set under the dash driver side and in the engine bay usually near the battery.

Posted on Oct 04, 2009

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1 Answer

The rear passenger door locks do not work on our 1999 GMC Suburban. I've checked the fuses and they all work; I tried to physically pull the lock button but it will not move: and I attempted to open the...

If the lock button doesnt move look like you door lock actuator jam you have to find a way to move the rear panel by the inside and unlock it manualy

Mar 22, 2015 | 1999 GMC Suburban

2 Answers

Power locks in the suburban do not work any more

Welcome to,
Have you checked the fuse ?
Take a 12 volt test light and check each side of the fuse no light to one side could mean the fuse is blow, Regards, Lee

Mar 27, 2010 | 1999 Chevrolet Suburban

1 Answer

1999 chevrolet suburban: door panel removal

hello here is the instructions for removing the door panel.

  • Remove the door handle bezel.
  • Remove the window handle,.
  • Remove the power accessory switch panel.
  • Remove the trim panel upper extension
  • Remove the trim panel screws.

  • Remove the courtesy light,
  • Remove door panel screws.
  • Remove the trim panel from the door, carefully sliding the trim panel up to release the retainers from the door.
  • Remove the speaker wire.
  • 3470484.gif

    Jan 23, 2010 | 1999 GMC Suburban

    1 Answer

    Fuse to suburban cigarette lighter/power locks keeps blowing.

    Unplug cigarette lighter, check circuit, unplug each door individualy at first, Don't forget the back doors, check circuit. Usualy the door wiring is damaged but there may be more then two cigarette lightes depending on the model.

    Dec 29, 2009 | 1990 Chevrolet Suburban

    1 Answer

    1999 GMC Suburban -- Interior lights & door lock issue

    this problem i have repaired many times.. it is normally a broken wire in the flexible rubber tube between the door and the doorjamb from years of flexing back and forth when you open and close the door.. i hope that helps

    Dec 10, 2009 | 1999 GMC Suburban

    1 Answer

    All of the door locks but one on our 1999 GMC Suburban will not lock or unlock when using either the remote or the door lock switch. Is there a relay that accuates the locks?

    there is a relay but if it were bad none of your locks would work. your problem is the door lock motor it is a little electric motor that actuates the lock. its also called a door lock actuator. kind of expensive and a little difficult to replace.

    Nov 02, 2009 | 1999 GMC Suburban

    1 Answer

    1999 GMC suburban locks seize in locked postion

    I just bought a 1999 Suburban and all of the door lock actuators were bad including the rear (barn style door) while I was replacing the rear door acuator I noticed that even with the factory mounting bracket on the actuator it was causing the door lock rod (the rod from the keyed cylinder lock to the actuator) was on a bind......the solution I came up with is adding an additional 3/4" spacer between the factory mount bracket and the door attach point. this solved any binding and the door lock works great now........also I used a lubricant on all the doors where the rods run through the plastic guides, which seemed to help quite a bit! Hope this help's.

    Aug 28, 2009 | 1999 GMC Suburban

    1 Answer

    Electric door locks not woorking

    This is a known issue to GM techs. Unfortunately for you, you will need to have the actuators replaced.

    Aug 15, 2009 | 1999 GMC Suburban

    1 Answer

    How to repair locking mechanism on 1999

    The locks do not operate with motors. They are individually operated by cylinoid switches which push or pull on the linkages. Older vehicles usually have these to fail in the colder months due to the thicker grease and sludge, etc. It sounds like your main control swithc is operating ok. You will likely have to take off the door panels and lubricate the linkages and switches and put anti corrosion grease (get at electrical supply place) on the wire connections. This will likely solve the problem or you may need to dissasemble and refurbish a switch as needed. If unable to rebuild, you will need to replace it.

    good luck

    Jan 03, 2009 | 1999 GMC Suburban

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