2006 GMC Yukon Denali XL Rear Hatch & Glass locks not working

chevy tahoe lift gate not opening - YouTube

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www.youtube.com/watch?v=xU6ybiY3F4I
Sep 1, 2010 - Uploaded by 76bluemoon Back lift gate/glass would not open or release. ... Wow, are you sure? .... known issue with tahoe, suburbans, hummers and othergmc vehicles. ... 2007-2012 Yukon Denali Rear Door Lock Actuator Replacement ... 2004 GMC Yukon XL rear liftgateremoval - Duration: 50:17. by Velvethamma 5,814 views.

pull fuses or relay until current drop to 50mA and less.

This may have to be done from the inside?

sounds like plug on backwards

My 2007 Yukon back hatch opens half way then stops and closes again. Any suggestions what the problem could be?

This sounds like you have a grounding problem with your hatch circuits. This type of malfunction usually occurs when two systems (the hatch lift and the Lift glass release) are supposed to be sharing the same ground, but one of the systems has a bad connector or a broken wire. It then "activates" the other system by grounding THROUGH the system that it is supposed to be sharing ground with.

What I would do in your case is to take a HARD look at the wires that are in the conduit that runs between the lift gate and the body. These wires flex every time the lift gate is opened and closed, and are prone to breakage.

The way you describe it, it sounds like the lift gate motor is losing contact at about 1/3 to 1/2 of the way up, and that is when it grabs ground through the glass release solenoid.

It should still be able to be locked and unlocked by the key, but if you mean locking by the remote, then the actuator is bad. These can be purchased from a dealership, parts yard, or I prefer to buy from Ebay. If you go to Ebay, just look up 2006 Yukon actuator. You may get a better price also.

Here is a link on how to fit your rear hatch issues.

http://gmcowners.com/gmc-forum/showthread.php?t=12619

Thank you for using fixya.

Check the unlock mechanism for the hatch. These are controlled by an electrical motor pulling a cable. If the cable came loose you might or might not hear the click click that it makes. I would also check the fuses and relays related to the system. Usually if you can get the interior panel off all the innards are exposed. I would suggest pulling that panel off, then triggering the keyless remote and see if anything moves, that might pinpoint where it has gone bad.

how do you removed the interior cover? for the rear door actuator?