GMC Sierra owners have reported 5 problems related to ignition module (under the electrical system category). The most recently reported issues are listed below.
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.
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all problems of the 2007 GMC Sierra
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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...
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all problems of the 2006 GMC Sierra
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I was informed by oconnors dealship of auburn, me. That the ecm shorted out and needed replacement at a cost of 700 dollar, not including labor.
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all problems of the 1999 GMC Sierra
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Consumer's vehicle doesn't have any tail lights to alert vehicles or traffic behind of a sudden stop or just being there. Brake lights only come on to indicate a stop. Dealer replaced the body control module, but it hasn't been corrected.
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all problems of the 2001 GMC Sierra
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Truck jammed on brakes and shifted into reverse with no warning due to the ecm (brain) malfunctioning. Please describe details.