Rear hatch won't open

Tiny
GMCMAN4387
  • MEMBER
  • 2006 GMC YUKON
Electrical problem
2006 GMC Yukon V8 All Wheel Drive Automatic

Just out of no where the rear hatch will not work what so ever. I cant get the lock to unlock with the wireless key and it has no entry for a key on the hatch. The glass also will not open or even make a sound. Now all of the other doors and windows on the other 4 doors work fine no problems what so ever. It sounds like a short to me but this suv is so new and well taking care of. Im leaning to maybe a faulty relay. The one box in the interior but no luck for door locks. Any help would be great.

Service writer, the ECC 10 amp fuse appears ok, would there be another fuse I could try. He Yukon is out of warranty.

ty for your time
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Friday, June 6th, 2008 AT 7:08 PM

26 Replies

Tiny
SERVICE WRITER
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/30961_yuk_1.jpg



You can check these. Swap them out with another fuse of the same to be sure. Same goes for the ECC.

You may need to manually open the liftgate to get at the components inside the door to check for wiring problems or bad connections. Check any harnesses that are bent on a tighter radius that will flex when the gate goes up and down.


http://www.2carpros.com/forum/automotive_pictures/30961_yuk1_1.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_yuk2_1.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_yuk3_1.jpg



From what I understand, the latches on these can be troublesome and should get lubricated. Granted I have not run into this problem on these at our shop.
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Friday, July 18th, 2008 AT 5:12 AM
Tiny
HANDSHAKE
  • MEMBER
Service Writer, I believe we are getting close, but no cigar just yet. The 06 Yukon does not conform to the Fig.10 diagram ( opening liftgate during electrical panel). It does have a pull down strap that the owner can use when closing the hatch. This strap uses a small hex head type screw. Upon removing this strap it makes it easier to pop out the bottom panel and expose all of the workings. Once you manual unlock the level you can utilize the push button for the glass or the level for the hatch. I sprayed the workings with WD-40 and noticed while using the remote lock the mechanism appears to wiggle. This tells me that it is not fuse related but more of a failure of the lock/unlock mechanism. Should I continue to track down electrical/fuse or does it also seem it is the lock/unlock mechanism. I may try to decipher uploading a picture if this will help. Thank you again, we are close. Handshake
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Monday, July 28th, 2008 AT 9:08 PM
Tiny
HANDSHAKE
  • MEMBER
Here is the picture of the mechanism......


http://www.2carpros.com/forum/automotive_pictures/212630_DSC01191_3.jpg

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Saturday, August 2nd, 2008 AT 8:26 PM
Tiny
SHAWNAMYLER
  • MEMBER
I am having the exact same problem. However, I was unable to remove the panel in fear of damaging it. Please let me know if you find a fix.
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Wednesday, August 6th, 2008 AT 1:39 PM
Tiny
SERVICE WRITER
  • EXPERT
Does this look like what you have?


http://www.2carpros.com/forum/automotive_pictures/30961_lift_1.jpg



IF there is no noise at the actuator, then this is still electrical, other wise you would hear or see a reaction when the button is pressed.

Test for power at the arrows, I expect none. This is the flow chart:


http://www.2carpros.com/forum/automotive_pictures/30961_lift1_1.jpg



Check for power going into the actuator harness, IF present, I would expect the actuator to be bad.
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Wednesday, August 6th, 2008 AT 7:16 PM
Tiny
PASTORBB
  • MEMBER
  • 2006 GMC YUKON
  • V8
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
Electrical problem
2006 GMC Yukon V8 Two Wheel Drive Automatic 50000 miles

Rear hatch will not open. Will not unlock from either the key fob remote or the interior electric lock/unlock buttons. There is no other way to unlock it.
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
JACK42
  • MEMBER
Possibly, can you tell if the lock actuator is working at the rear door by listening? You may need to remove the interior paneling to gain access to the latch assembly to visually inspect it for the problem.
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
MAXKEITHSMITH
  • MEMBER
  • 2006 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 48,000 MILES
2006 GMC Yukon V8 Four Wheel Drive Automatic 48,000 miles

Ther rear hatch will not open. It acts like is locked.
The button on inside driver side door opens all door except rear. Same is true of key remote.
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
EDWARD.S
  • MEMBER
Hi, I've Run into To This Quite Often Now. The Outside Handle is braking Off Inside. You have To remove the Rear Panel from Inside. The Get to the latch to open it. Then Look Closely At The Outside Handle You Will see that It's broken. There May be more wrong Inside there Also, They Should Put in a Inside handle In Case This Happens. It's not To easy to get the Panel off, From the Inside. Remove It Very carefully.

Hope This Helps You,
Good Luck
Edward S.
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
LOUIS BOISVERT
  • MEMBER
  • 2000 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 110,000 MILES
Interior problem
2000 GMC Yukon V8 Four Wheel Drive Automatic 110000 miles

The hatch in the back does not stay open any more I open it up all the way and then it shuts down half way.
To fix the problem:
Do I replace the hydraulic arms or can I repair them.
I appreciate your help
Thank you Louis
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
They need to be replaced. (NON-REPAIRABLE)
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
RIVERMIKERAT
  • MEMBER
Remove inner panel and adjust latch linkage or replace worn bushings as needed. Maybe both.
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
LES CARSON
  • MEMBER
  • 2007 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 49,000 MILES
Electrical problem
2007 GMC Yukon V8 Four Wheel Drive Automatic 49000 miles

rear hatch will not open/close electrically. It seems as if the motor runs but nothing happens.
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
MERLIN2021
  • EXPERT
I am emailing you some info from GM that might help. If this does not fix it, your motor may have a worn gear and need to be replaced.
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
HANDSHAKE
  • MEMBER
  • 2006 GMC YUKON
Electrical problem
2006 GMC Yukon V8 Two Wheel Drive Automatic

I too have a rear hatch problem. Rear hatch latch or rear glass will not open. HELP!
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
JACK42
  • MEMBER
Need to remove the interior panel and inspect the latch assembly, Im thinking a plastic connector broke and the rod wont release. Can you hear it make noise when you try to release it with the button?
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
HANDSHAKE
  • MEMBER
Yes, panels removed it sorta wiggles when I attempt to lock/unlock


http://www.2carpros.com/forum/automotive_pictures/212630_DSC01191_4.jpg

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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
JACK42
  • MEMBER
Try manually pulling on the cables where they hook to the mechanism to see if you can make them release the latch
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
HANDSHAKE
  • MEMBER


http://www.2carpros.com/forum/automotive_pictures/212630_DSC01195_1.jpg



The black arrow is able to be moved to lock or unlock the mechanism...the red arrow does not rotate when the button is pressed to lock or unlock...it does wiggle when the lock/unlock button is pressed.
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Monday, May 1st, 2017 AT 10:47 PM (Merged)
Tiny
JACK42
  • MEMBER
The two cables above the actuator, try moving them to se if the latches will release. Sounds like the lock actuator may be bad or the latch assembly (motor)
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Monday, May 1st, 2017 AT 10:47 PM (Merged)

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