2026 Chevrolet Silverado 1500 power train problems

“Engine Seized. Truck wouldn’t shift to neutral to be towed. Tow Truck with Dollies had to be called. Blocked/Detoured traffic for six hours at the main entrance to CMH AirPort Construction Parking. Yelled at by Security on site to move truck. Absolutely Humiliating.”

“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 2026 Chevy Silverado 1500 Lt. Can jump modes on its own. When in 4 wheel drive rear wheels lock up. This has been causing poor gas mileage. The lane assist does not hold, it travels well outside of lanes. Cannot use.”

“I bought the truck at 6,400 miles. I was on my way to the dealership because of a clanking sound I heard the day I brought it home. It was at 7,007 miles when it went down. I had it for a total of 5 days. I was coming from a stop when it suddenly lurched and I heard rattling and clanging noises. It had been making noises around 6500 miles that were most likely drivetrain related. Luckily, I was on a side road when the engine locked up. No warning lights. Had the truck towed to the dealership. They said the engine needs to be replaced. Still no delivery date given.”

“Vehicle comes to a stop sign on a low pitch hill. Driver releases the break and presses the gas portal to drive forward and vehicle begins rolling backwards. Driver looks down at the dash and sees a “press start button” message. Driver pressed start button and hears the engine come to life. Driver releases the break and presses the gas pedal to accelerate. Vehicle rolls backwards again. Another message to press start. Driver presses start again. Vehicle is now in park and with the parking break engaged. Driver releases parking break, shifts to drive and is now able to leave the intersection. Issue causes risk of collision due to unexpected rollback. Service appointment schedule for 10/15/26. No warnings presented beyond the start message errors listed above. Newly purchased vehicle: 2026 model year. Appx mileage at time of incident: 122 miles.”