The contact owns a 2008 Hummer H3. The contact stated that the air conditioning and heating system would independently shut off. The vehicle was taken to the dealer where it was diagnosed that the blower motor and the wire harness needed to be replaced. The vehicle was repaired however, months later, the failure recurred. The vehicle was taken back to the dealer where it was informed that the ac could not be charged and the radiator the ac alternator and the battery needed to be repaired. The vehicle was repaired however a month later then the vehicle began to over heat and fail to start. The vehicle was taken back to the dealer who, stated the ignition switch needed to be replaced. In addition, the contact stated that there was a burning odor emitting from the ac ventilation system. The vehicle was taken again to the dealer who stated the wire harness was melted as a result the blower motor and wire harness needed to be replaced. The vehicle was repaired but the failure persisted. The contact received notification of NHTSA campaign number: 15V421000 (visibility). The manufacturer had not yet determine a solution for the failure. The failure mileage was 90,851.

- Tracy , CA, USA

As many have explained before, my blower motor all of a sudden went out I started to read online what it might be and found that everyone complained of resistor harness wire burning out or the plastic melting. And just as everyone said I pulled out the harness and it was burn completely out. GM this really needs to be addressed, how many people need complain, or something possibly happen to someone before your company takes action, with all the recalls going on with your company you would think you guys would learn.

- Spring, TX, USA

I have the same issue as hundreds of others with GM's faulty blower motor resistor. The blower motor resistor and wiring harness have failed 2 times now. Melting to each other. Luckily no fire, yet. These are expensive vehicles, and GM should own up to the design flaw and issue a recall, and or offer a repair kit that truly fixes the flaw that owners can install as the location is fairly easy to get to and work on it. The purchasers of these vehicles should not have to put up with this quality flaw, and risk themselves, family and friends. GM - do the right thing and avoid major lawsuits.

- Big Lake, MN, USA

I looked on the internet to find out why my heater blower was not working and there were lots of complaints about the wiring harness and resistor burning out. I checked mine and sure enough mine was burnt on the wiring harness all the way through the plastic. GM needs to figure out why it would cause it to malfunction like that cause it could cause a fire.

- Redvale, CO, USA