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2006 Yukon XL rear door and hatch won't lock

(2006 GMC Yukon)
in Idalou, TX on June 26, 2010
The rear door and hatch on my 2006 Yukon XL won't lock. All four passenger doors lock and unlock fine. There is no manual lock on the rear door, so it stays unlocked all of the time.
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Popular Answer
on July 23, 2010
I call up GMC and they said it's probably the lock actuator for the back hatch that is not functioning properly...
on October 09, 2010
I have the same issue on a different vehicle. With door switch, all 4 doors lock but not thye rear hatch. The system thinks it is still open, so it won't lock it until it is shut. I get no info on the DIC about it, but I can't lock it. While the system thinks that hatch is open, I can't use the remotes.
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