Question about 2005 GMC Yukon Xl Denali

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2005 gmc yukon back passenger doors will not unlock with key remote and rear hatch wont unlock or open

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  • chrisghubbar Jun 21, 2009

    yes i am pushing the unlock twice..the rear passanger on both side only unlock by hand..

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My wife's 2003 Yukon wouldn't lock the rear doors or hatch, but it would unlock. My problem was the lock relay was bad. There are two relays, one for lock and one for unlock. They are located in the fuse panel on the left side of the console. Open the drivers door and you will see a cover that pops off. Behind this are several fuses and relays. Consult your manual to see which is the lock and unlock relays. They are side by side on a 2003. They pull straight out. I replaced both and they were around $10 apiece at any auto store.

Posted on Aug 01, 2009

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Either the relay for the locks is bad or the fuse. When you push the power lock on the inside if the doors do not unlock then I would check the fuses, both inside and under the hood. If they do work then the relay/s may be bad. You are pushing your key button twice correct?

Posted on Jun 21, 2009

  • Matthew Boulden Jun 21, 2009

    If they are not working, then I would think relay for the locks or a bad connection.

  • Matthew Boulden Jun 21, 2009

    The other problem may be the locks are sticking. The way to see this is open the door and watch the lock switch when you press the button. If you see it moving at all then the locks are sticking and need greased, if not then connection or relay problem.

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1 Answer

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