If the blower motor is not working, it is either a blown fuse, bad bower motor speed control, defective blower motor, or more than likely a bad blower motor resistor pack.
where to locate heater fuses for a 2001 grand prix gt
have you checked the fuses? if so, maybe the heater core needs replacing
Bad switch in steering column? diffrent fuses.
Fuel pump is defective and needs replacing.
Horn relay Switches at steering wheel
check the connections to the headlights and u might need to take your heater core out and get that checked out. or your belt may be bad or broken.
checked antifreeze level???
If the fuses are okay, then you need to have a mechanic run a scan on the instrument cluster. This is most likely where the problem is and it takes specialized tools to diagnose the problem.
main electrical power fuses for 06 pontiac montana
where are the fuses to the radio located at
I just assume you haven't checked the fuses yet. I had that problem and had to replace an expensive $60 fuse. That may have included labor. Check the fuses and see if you can buy one at your local auto parts store.
Can't get my heater to work on my 156