2026 Chevrolet Silverado 1500 electrical system problems

“I was traveling on a highway on-ramp and when I accelerated to get to normal driving speed, every light on the dash blinked and had a full brake failure. No ABS, no pressure on the pads, and the vehicle was limited to 60 mph. I narrowly avoided multiple accidents. This came with zero warning and the truck had less than 12,000 miles on it.”

“While driving home from work, I pulled up to the stop sign at the end of the exit ramp. When I released the brake and pressed the gas pedal, my truck would not move. This immediately put me in an anxious state as I was expecting the vehicle to move. I checked my rearview mirror to make sure that there wasn’t anybody coming up behind me and put my flashers on while I tried to figure out what was going on. My eyes moved to the shifter next. I noticed that the vehicle was in park. I reached down to the shifter and tried to put the vehicle in drive, but it would not shift. I then hit the push-to-start button to restart the vehicle. After this, I was able to shift back into drive and finish my commute home. This was an unsafe condition as I experienced an unexpected loss of power. An approaching vehicle would expect me to be moving when the road is clear in front of me. I took the truck to the dealership the next day. My vehicle was repaired under warranty. The cause states "update 2810275 Serial Data Gateway Module Reprogramming with SPS." I did not notice any warning lamps or messages, but I also did not look at the instrument panel when this happened. My first…”

“I am reporting a serious safety-related malfunction involving my 2026 Chevrolet Silverado 1500 ZR2, purchased new on June 2, 2026. On October 31, 2026, at approximately 9,659 miles, my vehicle unexpectedly shifted into Neutral while I was traveling approximately 65–70 mph on the highway. The vehicle suddenly lost propulsion, forcing me to maneuver through highway traffic to reach the shoulder. This created a serious risk of collision. The vehicle became disabled and required towing. Following the incident, the Chevrolet application displayed two critical warnings: * Transmission System — Service Now * Ignition System — Service Now The application also recorded an unsuccessful starting attempt. I am concerned that this vehicle may contain a dangerous transmission, electronic control, or drivetrain defect capable of causing unexpected loss of propulsion at highway speeds. I request that NHTSA evaluate this incident as a potential vehicle safety defect and determine whether similar failures have been reported involving 2026 Chevrolet Silverado vehicles. I have screenshots of the vehicle warnings and can provide repair records and diagnostic findings when available.”

“The vehicle's power steering went out mid drive on the road after being driven about 2 miles. I was unable to turn the wheel. I attempted to restart the car at that point is when the engine would not start. The truck did not move in the middle of traffic. This is caused by some electrical problem. The dealer does not know what the issue is and they could not duplicate the issue. It is the second time it has happened to me.”

“Due to a manufacturing defect outlined in Gm internal bulletin #PIT6452E caused an electrical motor to stall, overheat, melting the plastic HVAC box and actuator doors and fill the cabin with a burning plastic smell. 50°+ heat above cabin thermostat setting was documented blowing extreme heat and burning plastic smell into the cabin. The electrical short, burning smell and melted components make the vehicle unsafe to drive. The heat issue has been reproduced by the technician. Documentation of this issue is currently not available in writing. Verbally I am told all this but Both Kendall Chevrolet of Marysville and GM customer care supervisors refuse to put in writing any mention of melting, burning, electrical short, safety hazards or that the vehicle is not safe to drive, even after multiple requests for written documentation. The only inspection I am aware of is from Kendall Chevrolet service department. No dashboard lights or warnings illuminated.”

“On October 17, 2026, approximately two minutes after driving smoke started to fill the cabin. It appeared to be coming from behind the rear seat area. I pulled over and could not find the source of the smoke so I drove back home and shut the truck off in my driveway. Almost immediately after shutting the truck off the rear glass on either side of the middle sliding window shattered, but stayed in place. The middle sliding window did not shatter. I then called Chevrolet road side service and the vehicle was towed to a dealership.”