Defogger Problems of GMC Sierra

Hvac system became operational with the ignition turned off for an unknown period of time while the truck was parked in the garage. Relay resistor module overheated causing melting of the resistor and circuit board. Truck cabin and vicinity around the truck had a strong smell of burning plastic. Truck cabin filled with smoke. Was only able to turn off the hvac system and stop the burning by disconnecting the wiring harness. Dealer had to replace the blower motor, resistor, module connector and relay. Burning could have caused the entire vehicle to catch fire causing significant damage to other vehicles parked nearby and the house in which the garage was attached. Issue was identical to scenario described in transport canada recall #2011074.

See all problems of the 2007 GMC Sierra 🔎.

Describe below is exactly what has occurred with my vehicle. However gm replacement part is defective and issue is under recall in canada???? not u. S. ??? part is being redesigned may be a couple of months?? being told will have to wait in mean time I have manually bring heat up from low and may have heat may have to shut down vehicle and start at low. Not very reassuring when temps are -40f below zero. . Read more...

See all problems of the 2006 GMC Sierra 🔎.

The consumer has been experiencing problems with windshield wiper motor. When turning the windsheild wipers on, the motor makes a lot of noise. The manufacturer has yet to be contacted. Vehicle also has the following problems: engine coolant tank and brake master cylinder are leaking, brakes and fuel pump are noisy, and passenger side defroster does not flow enough air.

See all problems of the 1998 GMC Sierra 🔎.

Defroster not working properly, snow and ice accumulate, causing poor visibility.

See all problems of the 1996 GMC Sierra 🔎.

Right windshield defroster did not adequately clear sides of the ice snow and frost due to the low volume of air coming from the right defroster louver. Nlm.

The heater at times blows cold air, on one occasion the consumer had to pull of the road because the windows were so fogged and would not clear because the heater failed.

See all problems of the 2000 GMC Sierra 🔎.