I have a 2019 Yukon Denali, and it’s horn starts honking for no reason. Tonight In was standing next to my truck with the door closed, key in my hand and fob hanging from the key ring, for no reason at all, the horn started blaring. Not honk honk honk, but just constant. Wouldn’t stop with me pushing buttons on the remote fob, I had to unlock the door and start it. I left the engine on and Door open as I talked to my employee, and the engine shut off, and horn started blaring again. I had to restart it to get it to stop. The other day it did the same thing but it also would honk when I turned the wheel with the engine and moving forward. It didn’t do it since Sunday so I figured it was a random issue, but after tonight, I’m going to dealer in morning and letting them sort it out.. trust me if they say they can’t duplicate the problem, I’m not picking the truck back up.
