GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.
Is this a small red led light that blinks and is this with the doors locked or unlocked or both?
Is the vehicle starting and running with this issue here?
Let me know so we can continue,thanks Pete.