Wiring Problems of GMC Sierra

Vehicle started showing "service lane departure system, service park assist, service trailer brake system" alarms while driving. Upon taking it to the dealer for service it was found to have broken wiring for haptic motor for drivers seat. Not only did this cause a possible safety issue with the lane departure system and trailer brake system not working correctly, but it also caused a possible fire concern due to broken wiring.

See all problems of the 2015 GMC Sierra 🔎.

As truck was started after routine maintenance and being pull out of garage on11/10/15 there was a fire under the front of truck. When the fire was extinguished, the mechanic saw that the wiring was exposed due to continuous scraping against truck frame.

See all problems of the 2007 GMC Sierra 🔎.

Apparently gm uses peanut oil to lubricate wiring so they can more easily insulate, etc (accorging to the gm dealer). This attracts rats and mice which chew up the wiring - potentially impacting sensors and other items controlling cruise, stability/traction control, and any number of electrical systems that the driver may be relying upon for safety. I actually had map sensor wires chewed up that disabled my stability/traction systems and inhibited engine performance. Luckily for me it happened in my driveway rather than on the highway. Dealer claims it is not warranty item even though caused by a process that gm elects to use in building the vehicle. This could impact any/every vehicle that gm builds with use of peanut oil (may indeed be all of their models).

See all problems of the 2012 GMC Sierra 🔎.

Tl-the contact owns a 2007 GMC Sierra. The contact stated that the heater failed. The motor would operate but no heat would emit from the vents. The vehicle was taken to the dealer for inspection where they stated that the wiring was overheating and the wiring harness needed to be replaced. The vehicle was not repaired. The manufacturer was notified and advised that the vehicle was not included in any recall. The failure mileage was 95,000. Kmj.

Heater motor continues to run after the switch is turned off, the blower only works randomly. I under stand there is a recall for this issue but my VIN is not included. This seems to be a problem in a number of different gm vichicles. There is a chance of electrical fire with the being able to run with the switch off also the report would not pull a list of parts nor would it permit me to type in the parts: heater motor blower resistor, and wiring connectors.

Failure of abs module caused abs light and red service brake lights to come on. Replacing both front hub bearings (including both front abs sensors and wiring) and repairing the ground strap on the frame for the abs system did not fix the problem. Service brake system has new calipers ,rotors,and pads and a full inspection revealed no problems or failures. Abs module is still on vehicle but will be replaced next.

See all problems of the 2001 GMC Sierra 🔎.

The contact owns a 2005 GMC Sierra. The contact stated that the wiring harness to the lower resistor melted, began smoking which caused the blow motor to malfunction. The manufacturer stated that since there were no recalls they are not obligated to repair the vehicle. The contact feels the safety risk can potentially cause a fire without warning. The current and failure mileages were 100,000. Updated 9/17/09 updated 09/21/09.

See all problems of the 2005 GMC Sierra 🔎.

The wire that connects the airbag "person in the seat" switch breaks when you put (slide) the seat all the way back. They know this and have not recalled the truck! they will not and are not going to pay to fix it. The airbag will not deploy when needed, is this a safety recall?.

2009 GMC Sierra had a incorrect marked wire for the trailer power. The consumer stated when connecting the trailer power, he connected the wire at the fuse panel marked trailer power feed. When there was no power at the trailer connection he contacted the dealer. They determined that the wire marked trailer power feed was not the trailer power feed wire. They disconnected the wire and connected a different wire which did in fact supply power to the trailer connection.

See all problems of the 2009 GMC Sierra 🔎.

Day time running light burned out. When I replaced it the bottom of the bulb was burned and the plastic wiring socket was partially melted and brittle around the bulb base. I changed the bulb and the light still works. However, I also had trouble with one of my two horns not working, but after replacing the burned out bulb, both horns worked. Wiring seems to be in series with horn(s) and burned out bulb disables horn.

See all problems of the 2003 GMC Sierra 🔎.

Day time running light burned out. When I went to replace it (still the original bulb) the bottom of the bulb was burnt bad and the plastic wiring socket was starting to melt around the bulb base. I changed the bulb and the light still comes on. I thought I better check the headlights. Changed those bulbs but the wires look like they are blistering from over heating. Never did blow a fuse. Seems to me like wires are too small for the amps the lights draw, especially the daytime lights. No fire yet but seems like this could possibly set things up for a fire.

The contact complained about many defects with this vehicle. The speedometer continually had an inaccurate read out while driving. The dealership believed this failure could be related to the wiring harness. Since they were unable to duplicate the problem no repairs were done. Also, the vehicle stalled at various speeds without warning. While the stalling occurred the contact pressed hard on the brakes to elevate the stalling. He believed this was due to the power brakes. The vehicle stalled on occasion and would not immediately restart. The dealership made numerous attempts to correct this problem w and all attempts have been unsuccessful. This included replacing the fuel pump and electrical control module.

The harness wiring on the steering which controlled the headlights overheated and melted. They were so mashed together that they had began to rub against other wires. The wipers and headlights were inoperable. Please provide any further information.

The windshield is leaking water down into the electrical system. The wiring is shorting out. Also, the linkage has fallen out. You can smell burnt wiring and smoke. The consumer has contacted the dealer several times. The dealer continuously told the consumer that the gentleman was not there that she needed to see. Consumer had someone else look at the vehicle. And was told the vibration from driving had jarred the the pin loose. The blower, heat, and the transmission failed.

See all problems of the 2004 GMC Sierra 🔎.

On may 31st, the rear end differential assembly exploded sending the pinon thru the housing and the rear axle caught on fire. The truck was in the shop (perry cheverolet, inc. , columbia, mo)until 6-9-03. When I arrived in bozeman, mt on 7-2-03 I was having problems with the wiring. There was a fire when I plugged the RV electrical plug into the truck's trailer plug. There was also a blown rear tail light bulb. In bozman, they replaced the complete wiring harness, the tow receptacle and 2 fuse kits. It was the opinion of the shop in bozeman (j. C. Billion, GMC) that the wiring damage was part of the original fire and differential assembly damage. Although GMC paid for my out of pocket expenses and for the waranty work, I am left to wonder what will happen next and just how safe am I going to be in this truck? I selected a truck bigger than what I needed at the current time, thinking that if I replaced my travel trailer in the future, I would not have to trade trucks also.

Electrical fire in driver's side door of 1999 GMC Sierra 1500 pickup. Heavy smoke damage, door panel destroyed, trim around the door desstroyed and small area of carpet burnt by door.

See all problems of the 1999 GMC Sierra 🔎.

Insulation around wiring and connector of unit inside fuel tank caught on fire due to a short. Consumer states plug and wiring were inside fuel tank, wires going to odometer and fuel pump, the fire was inside the fuel tank.

See all problems of the 1997 GMC Sierra 🔎.

Recall 98 v 150 001/windshield wiper wiring: windshield wipers work intermittently. Dealer/mfr's have not been notified at this time. Consumer states the solid state electronic card failed when the vehicle was one year old, the wipers stayed off and would not restart until the solid state card was taped on.

See all problems of the 1996 GMC Sierra 🔎.

Vehicle fire caused by a short in the wiring of the door, claim 42-1295-954.

See all problems of the 1998 GMC Sierra 🔎.

Consumer states while driving there was a burning smell, then she felt something hot on her leg, when looking she saw vehicle had caught on fire and her leg was also on fire, fire was caused by a faulty wiring harness.

Consumer parked vehicle and went to work, came out and vehicle had caught on fire, the fire put itself out, the fire started in the area of the power mirror switch, claim 22-v226-581.

Vehicle fire started in drivers door panel at the control for the power mirror, claim 53-c467-067.

After fuel pump was replaced, the vehicle wouldn't start. While the vehicle was under warranty, it would not start. The fuel pump was changed but not the connector. The problem resurfaced and quit running numerous times. The service dealer stated that the fuel cap was not tight enough which caused this problem. (the cap was tightened) the vehicle stopped running while at a traffic light more than once. The consumer had taken the vehicle to the dealer and had to pay for repairs because the vehicle was then out of warranty. Several weeks later the problem recurred and the service dealer found no gas pressure and replaced the pump. The vehicle stopped again while the consumer was making a left turn. The consumer had taken upon himself to go under the vehicle and wiggled the wiring harness which started the vehicle. The service dealer changed the fuel pump connector harness. (the connector was burned and pitted).

The vehicle surged, the remote starter interfered with the fault sensor which caused the engine light to illuminate. The vehicle lost power while driving, and stalled, the fuel pump was replaced, however the problems continued. . The transmission changed between gears, and the dealer changed the pcm. The problem was discovered to be incorrect wiring which was routed wrong within the ignition which caused the problems.

See all problems of the 2002 GMC Sierra 🔎.