Question Tim,
I have a 2002 Denali. The driver side seat heater has quit working. I have read some earlier posts in which you offer a diagnostic to trouble-shoot the system. Can you still provide that?
Answer more than likely you have a burned out seat heater, you will need to remove the seat from the truck, remove the seat cover material to access the heating element. I can provide step by step instructions, but be aware it is not an easy task especially if you have never taken a seat apart before
