2026 Chevrolet Silverado 1500: engine stalls while driving

Filed Oct 24, 2026 · Electrical · WA

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.

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 Sep 30, 2026 · Brakes, Electrical · 2,600 miles · AR

The contact owns a 2026 Chevrolet Silverado 1500. The contact stated that after reversing at 3 MPH and then shifting to drive, the vehicle stalled. The parking brake independently activated with the message “Press to Start” displayed. The failure was a recurring failure. The vehicle was restarted after releasing the parking brake and pressing the push-to-start button. The dealer was contacted but was unable to duplicate the failure or determine the cause of the failure. The failure mileage was approximately 2,600.

Filed Sep 21, 2026 · Engine · MI

Engine seized and stalled while vehicle was in motion. This resulted in failure of power steering assist and power braking assist. This made vehicle extremely difficult to maneuver safely out of the flow of traffic. The engine seizure was confirmed by a Chevrolet dealership. And the engine was replaced by the Chevrolet dealership. There were no warning lamps. The engine made some unusual noises moments before failure.

Filed Sep 16, 2026 · Electrical, Engine · NE

While driving this 2026 Chevy Silverado, the engine has shut off while driving it. While driving down the road the engine will shut off and a message on the display will show "Return to Neutral" and "Press Start". This is very dangerous to have a vehicle shut off while driving down the road as it affect my family and other drivers on the road. The vehicle need to be completely stopped to shift to Park, in order to start the vehicle again. There are no signs or warnings that this is going to happen, it just happens randomly. The dealer can not reproduce the problem but did confirm to me this has happened to several other same make/model vehicle that have been reported at the same dealership. On another unrelated safety issue with this same vehicle, the gas tank over flows when filling it up. Dealer was able to reproduce this problem, but doesn't know how to fix it yet. Is waiting to GM to approve what should be replaced, under warranty. This is dangerous for me and other people at gas stations. I can't fill my vehicle up all the way with fuel, otherwise it runs down the side of the vehicle and on to the ground where it is very flammable.

Filed Sep 3, 2026 · Engine, Transmission · AR

I am submitting this formal statement regarding a severe, recurring safety hazard involving sudden engine stalling and internal mechanical noise on my 2026 Chevrolet Silverado 1500.The vehicle has experienced multiple sudden engine stalls during low-speed deceleration, specifically while letting off the accelerator pedal to execute low-speed turns into parking lots. When the stall occurs, the engine dies completely, causing an immediate and dangerous loss of power steering and power braking assistance mid-turn. Because the vehicle shuts off completely while still in motion, I am forced to bring the truck to a dead stop, shift the transmission out of Drive and into Park, and completely cycle the ignition system to restart the engine.There is a distinct, audible mechanical ticking sound coming from the engine compartment during operation. Crucially, the vehicle has never illuminated a Check Engine Light, displayed a dashboard warning message, or given any advance electronic indication prior to or during these sudden stalling events.This vehicle's build window falls directly into the scope of the federal safety agency’s (the federal safety agency) active Engineering Analysis (EA26005) investigating catastrophic valvetrain and engine failures on GM 6.2L L87 engines. Because this defect causes an unexpected loss of vehicle control with zero diagnostic warnings, it poses an immediate highway safety risk to myself and others.I request a full diagnostic scan for hidden or pending fault codes, a physical inspection of the valvetrain/Dynamic Fuel Management (DFM) system, and an inspection of the engine oil filter for metallic debris indicative of internal bearing degradation.

Filed Sep 3, 2026 · Engine, Transmission · AR

I am submitting this formal statement regarding a severe, recurring safety hazard involving sudden engine stalling and internal mechanical noise on my 2026 Chevrolet Silverado 1500.The vehicle has experienced multiple sudden engine stalls during low-speed deceleration, specifically while letting off the accelerator pedal to execute low-speed turns into parking lots. When the stall occurs, the engine dies completely, causing an immediate and dangerous loss of power steering and power braking assistance mid-turn. Because the vehicle shuts off completely while still in motion, I am forced to bring the truck to a dead stop, shift the transmission out of Drive and into Park, and completely cycle the ignition system to restart the engine.There is a distinct, audible mechanical ticking sound coming from the engine compartment during operation. Crucially, the vehicle has never illuminated a Check Engine Light, displayed a dashboard warning message, or given any advance electronic indication prior to or during these sudden stalling events.This vehicle's build window falls directly into the scope of the federal safety agency’s (the federal safety agency) active Engineering Analysis (EA26005) investigating catastrophic valvetrain and engine failures on GM 6.2L L87 engines. Because this defect causes an unexpected loss of vehicle control with zero diagnostic warnings, it poses an immediate highway safety risk to myself and others.I request a full diagnostic scan for hidden or pending fault codes, a physical inspection of the valvetrain/Dynamic Fuel Management (DFM) system, and an inspection of the engine oil filter for metallic debris indicative of internal bearing degradation.

Filed Aug 28, 2026 · Engine, Transmission · 300 miles · FL

The contact owns a 2026 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, all warning lights illuminated and the vehicle stalled. The contact stated that after several seconds, the vehicle was restarted and shifted into park(P). The vehicle was taken to a dealer to be diagnosed; however, the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 300.

Filed Aug 24, 2026 · Driver assistance, Engine · CO

I purchased this vehicle brand new and have experienced a recurring issue when coming to a stop. The forward sensors activate indicating I am too close to an object (even though nothing is in front of the vehicle), and the engine stalls. Everything shuts off except the driver information screen, which displays the prompt "Shift to Neutral and Press Start Again." Following this prompt does nothing; I have to shift into park and press the ignition again to restart the vehicle. I have taken the truck to the dealership multiple times. After the first two visits yielded no solution, the maintenance team contacted Chevy engineering, and a hard reset was performed. However, today (8/24), a similar issue occurred. While at a complete stop with a full car length between my truck and the vehicle ahead, the sensor warnings activated. The engine did not stall as it had before, but the issue seemed entirely random.

Filed Aug 11, 2026 · Engine · KS

I was making a sharp turn going about 6 miles an hour. The vehicle suddenly stalled and shifted to neutral. A message appeared on the dash stating, “Please restart vehicle.” The vehicle restarted without issue and no error codes were displayed.

Filed Jul 18, 2026 · Engine · KY

A.The engine is stalling while driving. This has happened four different times. Three times while towing, and one time while backing up a small hill. This is a scary situation because three of the four times almost caused an accident. 1.We were driving to Texas, pulling a pontoon boat. While exiting the highway, we were entering into an intersection at a speed of about 10 miles per hour, and the truck shut down. The truck said, “Start the motor and place it into gear.” Or something similar to that. 2.We were in stop-and-go traffic on the highway, and the truck shut down. Once again, I had to restart the motor and shift into gear. 3.We were entering a parking lot from the main road, and the truck shut down. Again, I had to restart the motor and shift into gear. 4.The three times above are during a time when we were towing. The fourth time is when we were backing up a small hill. The rear tires lost traction and spun for a second or two, and then the truck shut down and started to roll forward. Once again, I had to restart the motor and place it into gear.

Filed Jun 9, 2026 · Brakes, Electrical · 9,025 miles · AR

The contact owns a 2026 Chevrolet Silverado 1500. The contact stated that while driving at 70 MPH, there was an abnormally loud pinging sound coming from the engine. The vehicle lost motive power, the brakes and the steering wheel became inoperable. The message "Depress Start" was displayed. The vehicle was towed to the local dealer, where it was initially diagnosed that the battery failure was unsoldered. The vehicle was repaired, but the failure recurred. While being test-driven by the mechanic, the vehicle stalled. After further investigation, it was determined that the engine needed to be replaced due to the main bearing failure. The manufacturer was notified of the failure, opened a case and informed the contact that a case worker, near his location, would contact him in 24 hours. The failure mileage was approximately 9,025.