Hello , very new to this group but would love some help with my truck. Have a 2018 Chevy Silverado 1500 LTZ and for several weeks now when locking the truck with the key fob sometimes the horn would sound when locking , sometimes sound very muffled or sometimes truck would lock with not horn chirp at all. So this evening went out to truck to get something out , unlocked with key fob, shut the door and hit the lock button and when the lights blinked to lock the truck instead of the horn chirp , the horn actually just turned on full blast as if I were behind the wheel just laying on the horn. So I immediately hit the button on the key fob to unlock truck, hit the panic button , opened the doors and NOTHING I did would make the horn stop and was it was just stuck on. I then proceeded to go into action and popped the hood and disconnected the negative battery terminal to kill power. I let the truck sit for like 10 min and tried to re-connect the battery and as soon as I touched the terminal the horn would just go to full blast mode again. Then I just found the fuse to the horn under hood in fuse box and pulled the fuse and then horn shut off.
Sorry for the lengthy testimony, lol but does anyone have any idea why the horn would be stuck in that On mode and will not turn off unless you pull the fuse?
thanks !