2026 Chevrolet Silverado 1500 engine problems

Filed Nov 5, 2026 · Engine · VA

Driving on I-64 approx. 75 MPH, I heard a noise coming from what seemed to be the engine; sounded like a belt or hose whipping in the wind-did not sound metallic in nature. I turned off radio and opened window and could not determine source. Within 20 seconds or so, I had lost motive power and vehicle began slowing down, despite applying gas pedal. I did not have any warning lights. Oil pressure seemed okay, RPM stayed just under 2k. Once vehicle slowed down from 75 to about 60 mph I steered vehicle off roadway. I turned off engine and opened hood to inspect. I had light smoke coming out of air filter. Oil was pouring out the bottom. Only then did I have a check engine light on and vehicle would not restart. Dealer inspection determined what I suspected (from previous years 6.2L recalls), thrown rod through the engine block. The service rep said he personally saw the rod sticking out the side of the engine block.

Filed Nov 4, 2026 · Engine, Steering · KY

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.

Filed Nov 2, 2026 · Electrical, Engine · MI

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 thought was to check for approaching vehicle traffic and to put on my flashers. After I put on my flashers, I looked down and noticed the vehicle was in park.

Filed Oct 28, 2026 · Engine · NV

At time of incident this truck had about 5500 miles on it. Prior to this incident, I received no warnings, messages, and experienced no adverse symptoms. I was towing an 18ft Fleetwood Pioneer travel trailer. While traveling at about 70 mph, and climbing a mild grade, the transmission shifted down, and shortly after the engine started loosing power. RPMs remained constant for about 5-10 seconds, but speed was dropping. Then RPMs fluctuated for about another 5-10 seconds. Then no response to accelerator after that. Upon pulling over, LOW OIL PRESSURE message appeared, then ATTEMPT ENGINE RESTART. Upon attempting restart, could hear some pretty weird noises but engine did not restart, and I aborted start attempt. Dealership has ordered a replacement motor under warranty. I was stranded on a narrow shoulder of the freeway for about 1.5 hours awaiting a tow truck. Vehicles sped by at 80 mph which compromised safety, especially when tow truck arrived and he worked on hooking up.

Filed Oct 26, 2026 · Engine, Transmission · PA

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.

Filed Oct 26, 2026 · Engine · MD

Driving on [XXX] in Maryland, engine just stopped. Pulled to the shoulder. Engine refused to start. Was towing a 7300lb Airstream Flying Cloud trailer. If unable to pull on to shoulder, would have been stopped i the slow lane of the road. Weiner Chevrolet in Cumberland, MD. Has confirmed that the engine seized up. They are replacing the engine. There was no indication of anything wrong till the engine stopped running. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 26, 2026 · Engine · OH

I took my truck and atvs from Ohio to Michigan for vacation. We took my truck out. We swerved to miss a deer. Pulled over to check everything out and the truck shut down and would not start. Called roadside assistance, they towed vehicle to a Chevy dealer. Dealer calls me later that afternoon telling me the engine locked up and needed replaced. The truck had 5,800 miles when this happened. We were also traveling at low speeds. If this had happened on the freeway it may have caused a serious accident and may have resulted in injury or loss of life. Since they replaced the failed engine with the same engine I am concerned it will do this again and have no confidence in this vehicle.

Filed Oct 19, 2026 · Brakes, Engine · FL

My 2026 Chevrolet Silverado 1500 Trail Boss, equipped with the 5.3L V8 engine and 10-speed automatic transmission, intermittently experiences a complete engine stall while the vehicle is still moving. This condition typically occurs following an extended period of driving, during braking and deceleration at approximately 1 to 5 mph. The vehicle locks the emergency brake and the engine stops. This happened in stop/go traffic as well as in my neighborhood. As the vehicle approaches a complete stop, the engine begins to struggle, with noticeable hesitation and a reduction in engine RPM, before shutting off completely. When the engine stalls, the transmission automatically shifts into Neutral, requiring me to restart the engine before I can resume driving. This is not normal automatic engine start/stop operation. The issue occurs even when the automatic start/stop feature has been manually disabled. The engine shuts down unexpectedly without driver input or an intentional shutdown command. The intermittent nature of this malfunction makes it difficult to predict when the vehicle will stall. The unexpected loss of engine power while the vehicle is moving creates a significant safety concern, particularly when braking, turning, entering intersections, or maneuvering in traffic. The vehicle could become temporarily disabled in an active roadway, increasing the risk of a collision. I have identified reports from other owners of 2026 Chevrolet Silverado 1500 vehicles describing similar unexpected engine shutdowns during low-speed operation, including instances where the transmission shifts into Neutral and requires an engine restart. The cause of this malfunction has not been determined. I am requesting that the federal safety agency investigate whether this condition represents a broader safety defect affecting 2026 Chevrolet Silverado 1500 vehicles equipped with the 5.3L V8 engine. I am concerned this could happen on the highway or cause an accident. Dealer cannot replicate...

Filed Oct 15, 2026 · Brakes, Engine · TX

On [XXX], at approximately [XXX], I was driving my 2026 Chevrolet Silverado 1500 RST (5.3L V8, 4WD), leased new on [XXX], with about 122 miles on the odometer. I came to a complete stop at a stop sign on an uphill grade at [XXX]. The Auto Stop/Start feature shut the engine off while I held the brake, as designed. When I released the brake to proceed, the engine did not restart, and the truck rolled backward down the grade. The instrument cluster displayed "Press start button." I pressed the start button, the engine started, and I released the brake again. The truck again rolled backward, and the cluster again displayed "Press start button." At this point, the vehicle was in park and with the parking break engaged. I pressed start a second time. I released the parking brake, shifted into Drive, and was finally able to proceed. In total there were 2 failed restarts after an Auto Stop event, 2 uncommanded rollbacks on an incline, and 1 automatic parking brake engagement. No collision occurred. However, the truck rolled backward toward another vehicle behind it with no engine power, and I had to restart it twice while stopped at an intersection. This is a serious safety hazard in traffic, especially on hills. GM has published Preliminary Information bulletin PIT5689N, "No Restart after an Auto Stop Event / No Crank," covering 2020-2026 Silverado 1500 trucks. It cites a loose or broken engine ground strap as a possible cause. This vehicle is 5 days old and the defect appeared within 116 miles of delivery. I am disabling Auto Stop manually at every startup until the vehicle is repaired. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 15, 2026 · Brakes, Engine · TX

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.