2008 GMC Sierra 1500 - Alarming problem

gmc

#1

Horn goes off for no reason and lights flash and this truck starts automatically with out me pushing any buttons. It woke up the neighborhood! I know it will do it again so what should I do?


#2

Check under the dash to see if an aftermarket remote start system was added to the vehicle.


#3

And then RIP the thing OUT. Aftermarket remote starters are nothing but trouble.