Question about 2004 Chevrolet Avalanche

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Tailgate won't lock on my 2002 Avalanche. Key turns, I can hear movement but lock does not catch. Any suggestions or diagrams how to fix.

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  • bigals8 Aug 19, 2008

    have adjusted both catches, fixed temporarily, now requires slamming, kicking, hitting, and 4 letter words --dealer says a new lance mechanism is needed

  • Anonymous Dec 11, 2008

    same prob - took apart tailgate latch & found the wimpy locking mechanism was bent - corrected the bend & lubricated - it worked for a few days, then would not lock tailgate again. I may go get the part to replace - just seems like a very malliable piece to be in the mechanism.

  • mbuckley52 Apr 01, 2009

    just bought a used 2008 Avalanche on 3/31/09. I do not see how the tailgate locks. It does not have a place for a key. What to do ?



    also on the two side locking comparments, they "unlock" when I just push the key in. turning the key does not do anything. what to do?



    also the spare tire lock, when I put the key in the lock the whole locking barrel assembly comes out, is that normal?



    also the dealer "CarMax" tells me I only get one remote, is that normal?

    thanx in advance

  • Anonymous Apr 26, 2009

    Same problem with my 2005. (Can you say 'poor design'? ) However, I could not access the screws as the truck was fully loaded. I pulled up on the exterior handle and sprayed WD40 on everything I could reach. After 5 minutes it worked. Now,do you think it will work on my knee? :)

  • russschafer1 May 07, 2009

    The tail gate of a 2004 would not close and lock. But after reading your solutions using WD40 it works great now. THANKS TO ALL FOR THE ADVICE. RUSS

  • Anonymous Mar 19, 2014

    can hear lock movement but want open

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I have the solution to every one out there with tailgate lock problems......I had the very same problem but wasnt interested in getting a power lock.......Here goes.....it costs you some wd40 or liquid wrench.....nothing else......open the tail gate.....you will see the screws that hold the handle in place.....take off the two outer screws only....then pop off the handle cover....yes it does come off without breaking.....you will see something shaped like a "C".....it should move back and forth.....with the tailgate closed you should be able to move that "C" back and forth...it swivels on a pivot you can see in the opening above the tailgate handle.......this is the lock mechanism.....mine was seized up.....anyways......with the tailgate still closed squirt some wd40 or liquid wrench in the area directly above the tailgate handle........that "C" thing will move again and your problem is over...email me if you figured it out........
I was delighted with the fix.....and it's so easy to do.....then put everything back in its place......tell everyone you know....

Posted on Oct 07, 2008

  • Curtis Maynard May 26, 2013

    You are GREAT! Thank you very much for your help. I did exactly what you said and now I can lock my tailgate. It took 5 minutes start to finish.

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I had the exact same problems on my 2006. Unscrew the two startec screws inside the tail gate that hold the plastic cover over the handle.
Once this is off squirt everything with wd40. Work the "lock' square and the handle catch a few times manually. once all this is freed up it should work nice and smotthly again.

Posted on Sep 08, 2008

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I also had the exact problem with my 2004. Same fix - took 10 minutes and worked perfectly!

Posted on Oct 28, 2008

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