2026 Chevrolet Suburban 1500: engine failure

Filed Sep 14, 2026 · Engine, Transmission · VA · crash

While exiting the highway my vehicle suddenly lost power and could not move. I could not put the vehicle in neutral. The engine had completely seized. As a result, my car got hit by a Semi-truck.

Filed Aug 27, 2026 · Engine · 14,800 miles · IA

The contact owns a 2026 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, an abnormal knocking sound was heard coming from the engine compartment, and the check engine warning light illuminated. The vehicle was driven to the contact's residence and parked. While reversing out of the driveway the following day, the engine seized, and the vehicle stalled. The vehicle was towed to a local dealer, where the cause of the failure was not yet determined. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 14,800.

Filed Jul 13, 2026 · Engine · 1,700 miles · NJ

The contact owns a 2026 Chevrolet Suburban. The contact stated that while driving approximately 45 MPH, there was a popping sound coming from the vehicle and the vehicle stalled. The vehicle failed to restart. The vehicle was towed to a dealer where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 1,700.

Filed May 2, 2026 · Engine · OH

Today, 5/2/26 in Lewis Center, OH- My daughter and I were returning home from her Soccer game. The time was about 11am. We were in my brand new Chevy Z71 Suburban, with 4,100 miles. As we were slowing , approaching the roundabout, i noticed no power as i was preparing to enter the roundabout. I then see that the car powered off. It would not restart and i had no way to put into N. I had to call [XXX] to have the Sheriff direct traffic. I used Onstar, only to find out the tow was 216 min out. So the Sheriff called a tow and it was there in 30 min and towed to local Chevy dealership, thankfully before the closed for the weekend. I will find out Monday what the issue is- but it for sure seized up. So sad. I paid $100k for this truck. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 17, 2026 · Engine · VA

8,305 miles the engine failed. Had to have it towed to the dealership. New engine on order, but on backorder and have no idea when it will come in.

Filed Feb 24, 2026 · Engine · TX

On February 21st at approximately 9:30 AM, I was driving my brand-new 2026 Chevy Suburban High Country when I began hearing an unusual noise from the engine. There were zero dashboard warnings — no check engine light, no alerts, nothing indicating a failure. Out of caution, I immediately headed to the dealership so they could inspect it. I was driving slowly and carefully when, without any warning whatsoever, the engine suddenly and completely seized. The vehicle locked up abruptly. I barely had enough time to try to move toward the shoulder, and I was unable to fully clear the roadway — the rear half of the vehicle remained partially in traffic. It was an extremely dangerous situation. What is especially alarming is that I was not on the highway at the time. Had this occurred while traveling 80–85 mph on SH-130 in Texas — which is a normal speed limit there — the outcome could have been catastrophic. A complete engine seizure at highway speeds could have caused a major accident involving multiple vehicles. Even more concerning, my Chevrolet app (connected through OnStar) still shows no issues or alerts with the vehicle. The attached pictures are from the My Chevrolet app on Sunday, 02/22/2026, around 11:13 AM. This is a brand-new vehicle, and I was informed yesterday that the dealership has requested a full engine replacement. I have no timeline for the repair. For a vehicle of this price point, a sudden engine seizure with zero warnings is deeply concerning from both a safety and reliability standpoint.