A/C Selector Switch. This part generally fits GMC vehicles and includes models such as Sierra 1500,Sierra 2500 HD with the trims of AT4 Crew Cab Pickup 4-Door,AT4 Extended Cab Pickup 4-Door,Denali Crew Cab Pickup 4-Door,SLE Crew Cab Pickup 4-Door,SLE Extended Cab Pickup 4-Door,SLT Crew Cab Pickup 4-Door,SLT Extended Cab Pickup 4-Door.
