Warning buzzer intermittently working, please check this out.
My question is, does the sound for the buzzer come through the speakers in this vehicle and are the problems possibly related?
I can tell you that most GM factory double DIN head units control many more functions than those handled by our older style radios. One of those is the audible chimes. My wife's Envoy sends all audible chimes from the radio to the front speakers. I found out I had to buy an external adapter to retain the chimes when I installed an aftermarket head unit. I don't know for sure but I wouldn't be surprised that the full size pickups have a similar setup.






