My back hatch on my 2006 Yukon XL won't lock. All other doors lock, but back hatch and back window won't lock with either remote or door lock. There is no key hole to lock/unlock manually. Fix idea?
Remove the door panel and see if there is power to the lock solenoid. No power, check for a broken wire near the hinge. If there is power, replace the solenoid.
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