Help. I have a 2018 Yukon XL Denali that I bought used from a dealer 1.5 years ago. About 8 months ago the key fob started acting up.
It started with the key not being detected inside the vehicle, even when it was running, and when I'm trying to start the vehicle. The START/STOP is also...
I recently got a 2005 Yukon XL Denali it came with a keyless entry remote which didn't work. I've tried to get the car into programming mode via these instructions:
https://northcoastkeyless.com/2005-gmc-yukon-denali-keyless-entry-remote-programming-instructions/
But the door locks always...
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