2023 GMC Sierra electrical system problems

“600 miles and 3 months out of warranty the dash completely disappeared. Dealership says the costs is in excess of $1600 to fix the issue. I have researched this and it is a common problem with these trucks and it needs an instrument cluster. Given the fact that GMC controls the panels to these trucks I feel certain that this is actually caused by them and should be fixed under a recall. We have owned the truck 6 months. We are not able to see the speed limit, gas limits or anything on the dash any longer.”

“2 issues. The radio will go blank and not work regardless of the method using to listen. Example- Sirius/XM or FM/AM. The vehicle will accelerate/jerk forward/backward dramatically compared to the pressure on the pedal. Scared to let anyone else operate the vehicle to prevent accident. Scared to back up to a camper or trailer because it is unpredictable how far it will jerk. No alerts or warnings. Has been taken to the dealer shop many occasions. Accelerator pedal has been replaced. Transmission reprogrammed. The radio/electronics has been updated on multiple occasions. Still both problems exist. GM has been contacted and there is an open case; however, still not resolved. This issue began when purchased in 2023 and continues in 2026. Neither the dealer nor GM seem to have a solution.”

“The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving 35 MPH, the vehicle lost power steering functionality. The "Service Power Steering" message was displayed and ESP warning light was illuminated. The dealer was contacted and diagnosed the vehicle with a short circuit in the module used to control the rack-and-pinion system, which had blown the fuse. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 83,000.”

“The front grille trim moulding failed and flew off on the highway. Also, the forward collision light on vehicle from the front camera not working and needing to be replaced.”

“This vehicle has water intrusion for the power steering harness. The system went out one day. Vehicle has 40K miles on it. i bought it less than a year ago as a used vehicle with 30K miles on it. Less than a year later i end up with a 6,500 bill for it.”

“A GM warranty engine replacement was performed at Heyward Allen GMC in [XXX] on XXX at 70,415 miles. We purchase the vehicle on XXX with 73,904 miles and after driving for a month started having multiple malfunction indicator lights displaying, and experienced a no start condition. We took the vehicle to the Don Ledford GMC dealer in [XXX], and they performed a high level inspection. They found missing mounting brackets, loose wiring harness wires, broken and missing bolts. Issues all related to an engine replacement procedure. Deeming the vehicle unsafe to operate. The origin dealer that was paid through GMC to replace the engine is now refusing any responsibility for resolving these issues. Technicians have video evidence of the workmanship issues, documenting the sub- par repair work performed during the engine change. The vehicle now sits at the Don Ledford GMC dealer awaiting an estimated $4400 repair, before the vehicle is safe to operate on the road. The vehicle has been at the Don ledford dealer since XXX, and is still there today, XXX.”