2010 GMC Sierra 1500 Electrical system Problems

“Hooked up a trailer (first time ever), discovered that the trailer lights were not working, checked fuses, found a melted fuse. Found a recall for same problem, however it is VIN specific and VIN is not covered. Took to dealership, and reported problem to Gmc, was told to report it here. Also found a VIN specific recall for the driver control button for the passenger window (sometimes works, sometimes doesn't) and again this VIN is not covered.”

“The transmission control module failed while towing my trailer. I had my family loaded in the truck and the failure happened in a busy intersection, nearly causing several accidents as I was unable to move the vehicle. Now I’m told that these TCM’s are on back order with no repair date known. My truck has already been down for a month now and I’m told this could be up to a year waiting for the part. I’m told that there are thousands of these on back order and GM is doing nothing to fix it. This is inexcusably dangerous. …”

“Over the last 3 years we have had ongoing issues with our truck going into limp mode. We have spent thousands of dollars at dealerships and mechanics trying to troubleshoot the issue. Several occasions while trying to merge onto the freeway the truck would slip into limp mode causing us to have other drivers slam on their breaks almost hitting us. We had 2 cars in January of 2023 veer off the side of the road. We pulled over and thankfully they missed hitting one another. We just couldn't speed up to get out of their way. …”

“Persistent burning of headlight bulbs. Numerous headlight bulb changes, wiring changed, housing changed, and light continues to burn out. Numerous owners of this year and model reporting the same occurrence. Very time consuming, costly, and irritating especially when cops become involved and hand out tickets.”

“The contact owns a 2010 Gmc SIERRA 1500. While driving approximately 55-60 MPH, the instrument panel indicators flickered on and off, the tachometer and other gauges became inoperable, and the vehicle lost power. Additionally, the accelerator pedal was depressed; however, the vehicle failed to respond. The contact pulled off of the roadway and shut off the vehicle. While attempting to restart the vehicle, the check engine and air bag warning indicators illuminated. When the positive terminal wire was removed from the battery and replaced, the vehicle started and operated normally. …”