GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hello my name is***** am an ASE Master Technician and I am glad to help you out with your question.
The most common problem for this is the lock actuator. The second is broken wiring in the rubber boot in the jam of the gate. You can pull this boot back and inspect for broken wires.
To fix the lock the actuator needs to be replaced. You need to remove the trim panel on the gate. You can manually open the gate from the inside with a screwdriver if the gate is stuck closed.
Hello again Dan here,
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This question is coming up on 7 days which means it will time out and close.
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Let me help some more. Is there anything else I can help you with?
If I did not give you 5 star service, please let me know what I missed.
I sent you a link of the part that you need to replace for the lock.