2026 Chevrolet Silverado 1500 Engine Problems

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.

NHTSA ID

11775860

Incident

Nov 1, 2026

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.

NHTSA ID

11775777

Incident

Nov 3, 2026

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.

NHTSA ID

11775145

Incident

Oct 29, 2026

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.

NHTSA ID

11774166

Incident

Oct 22, 2026

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.

NHTSA ID

11773739

Incident

Oct 12, 2026

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)

NHTSA ID

11773693

Incident

Oct 19, 2026

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.

NHTSA ID

11773597

Incident

Sep 24, 2026

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 NHTSA 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...

NHTSA ID

11772271

Incident

Oct 17, 2026

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)

NHTSA ID

11771518

Incident

Oct 15, 2026

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.

NHTSA ID

11771516

Incident

Oct 15, 2026

While driving, the vehicle shifted itself into Park without any driver input and the engine shut off. This has occurred on three occasions, first on May 24, 2026 at approximately 1,000 miles — three days after the vehicle was purchased new. It happened again at approximately 2,300 miles, and a third time at approximately 10,350 miles. Each occurrence happened at less than 10 mph — once while accelerating and twice while decelerating. No crash, fire, or injuries resulted. The vehicle was presented to an authorized Chevrolet dealer for this same defect on two occasions. On the first visit the dealer found no trouble code, could not duplicate the condition, and performed no repair. On the second visit, beginning September 22, 2026, no repair was performed and the vehicle remained out of service in the dealer's custody — 16 working days on that visit alone, 20 cumulative working days across both visits, as of October 13, 2026. A loaner vehicle was provided during both visits. The manufacturer has an open customer assistance case for this defect. The vehicle is not being driven in this condition; if it must be moved, it is moved by tow only. A vehicle that immobilizes itself in motion is a safety hazard to its occupants and to surrounding traffic.

NHTSA ID

11770768

Incident

May 24, 2026

The first time I was driving in traffic and the truck shut completely off with no warning the display on the dash indicated,please put in park and restart, Took a straight to the dealership the code said it was a malfunction with a fuel pump. I had it for two weeks. September 27 it happened again. Took it back to the dealership and they’ve had it ever since.

NHTSA ID

11770681

Incident

Aug 20, 2026

Engine blown at 3,000 miles while going 73 MPH

NHTSA ID

11770539

Incident

Sep 7, 2026

After driving for ~45 minutes, while sitting in traffic moving along slowly, my vehicle went into neutral, engine shut off and dash displayed message to press start/stop button to restart engine.

NHTSA ID

11769788

Incident

Oct 7, 2026

The 2026 Chevy 1500 Silverado 6.2L engine had a slight knocking sound from the date I purchased it brand new in march 2026. I was driving home on a evening in July 2026 and the truck began to squeak, knock very loudly and shake violently. The truck then locked up and completely shut off while I was driving 45 mph down the highway. The vehicle had approximately 3,000 miles on it when the incident occurred. The truck’s violent shaking and sudden loss of power while traveling 45 mph created an immediate risk in which I did not have control of the vehicle and could have caused me to be unable to safely maneuver out of traffic. Thank God there was light traffic at the time and also a wide empty parking lot straight ahead of me when the truck shut down. The incident also placed other drivers in danger of colliding with my disabled vehicle or taking sudden evasive action that could cause an accident. I had it towed directly to the dealership service department and according to their report, "found catastrophic internal engine failure."

NHTSA ID

11769423

Incident

Jul 13, 2026

I am reporting a safety concern involving my 2026 Chevrolet Silverado 1500 High Country equipped with the 6.2L V8 engine. I purchased the vehicle new on August 3, 2026. The engine has unexpectedly shut off on two separate occasions while the vehicle was still moving at low speed. The first incident occurred within approximately the first week of ownership, when the truck had less than approximately 1,000 miles on it. I was slowly driving through the parking lot at McB’s when the engine unexpectedly shut off while the vehicle was still moving. The instrument panel displayed “Press Brake to Start.” The engine did not automatically restart, and I had to stop the vehicle and manually restart the engine. The second incident occurred on September 18, 2026, while I was slowly driving through a parking garage. Again, the vehicle was still moving when the engine unexpectedly shut off. The instrument panel displayed the same “Press Brake to Start” message. The engine did not automatically restart, and I again had to manually restart the vehicle. I have a video recording of this incident. This vehicle is equipped with automatic engine Stop/Start. During normal Stop/Start operation, “AUTO STOP” is indicated on the instrument panel when the system shuts the engine off. During neither of these two incidents did the instrument panel indicate “AUTO STOP.” Instead, the engine unexpectedly shut off while the vehicle was moving, displayed “Press Brake to Start,” and required a manual restart. Both incidents occurred while maneuvering at low speed in parking areas. I am concerned that the same failure could occur at a higher speed, while entering or crossing traffic, or in another situation where an unexpected loss of engine power could cause a collision. The vehicle has also experienced intermittent electrical/electronic issues, including radio interruptions, remote-start problems, a “Key Not Detected” message, memory-seat/seat-recall problems, and an intermittent power running-

NHTSA ID

11769391

Incident

Aug 11, 2026

Multiple instances of engine shutting off while driving and switches to "Park". Most recently the truck suddenly lost power, shut off, stopped immediately, went into Park, jerked extremely hard, and displayed the message “Service Transmission.”

NHTSA ID

11768034

Incident

Aug 28, 2026

Driving on the interstate and the truck had a horrible vibration. It smoothed out and it did it again. I got off at the next exit and the engine was making a horrible knocking noise. I had it towed to my Chevy dealer for inspection. They drained the oil and found excessive metal in the oil. They decided that the engine needs to be replaced. The truck only has 4524 miles on it and it was purchased in June of 2026.

NHTSA ID

11767325

Incident

Sep 22, 2026

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.

NHTSA ID

11765820

Incident

Aug 9, 2026

No warning lamps or chimes. Truck shut down as I was pulling into my garage. Shifted to neutral on its own and a message on the dash said to put it in park and restart the engine. This event happened on 9/15/26. The truck has 1400 miles on the odometer.

NHTSA ID

11765347

Incident

Sep 15, 2026

While driving in a parking lot. Barely applying throttle to move straight forward not turning or driving on a rough road the truck completely shut off all screens went blank and I wasn't able to accelerate. I was able to restart the truck, shift into drive and continue but took a few seconds to realize the issue and properly restart the engine. Thankfully this occurred while in a parking lot without anyone behind me but this is a real concern for me now driving on streets/highways with other vehicles around. This truck was purchased brand new has never been off road and has just over 3,100 miles. There were no warning lights before or after this incident.

NHTSA ID

11765162

Incident

Sep 17, 2026

While driving at about 20mph we hear a grinding noise and the truck throws itself into nuetral and then shut off. The truck seems to be on like when started with the key fob, on but not fully started. A warning message comes on the dash stating "conditions not safe to drive". The truck would not go back into gear, even after pressing the start button and truck regaining power. Pressed on the brakes to stop, put in park and then back into drive. Message warning went off and truck drove as normal again. This has happened twice since purchasing the vehicle in May 2026.

NHTSA ID

11765110

Incident

Sep 17, 2026

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.

NHTSA ID

11764619

Incident

Sep 1, 2026

The contact owns a 2026 Chevrolet Silverado 1500. The contact stated that while driving 70 MPH, the vehicle burst into flames. When the Police and emergency services arrived, the vehicle was fully engulfed in flames. The contact stated that an oil change was performed prior to the failure. The fire department extinguished the fire. A Police report was filed. The contact associated the failure with GM Service Update: N262568830 (Potential Oil Filter Leak). The customer service assistance at the manufacturer was notified of the failure and opened a case. The failure mileage was approximately 11,000.

NHTSA ID

11764123

Incident

Sep 12, 2026

Mileage

11,000 mi

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 National Highway Traffic Safety Administration’s (NHTSA) 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.

NHTSA ID

11762022

Incident

Aug 29, 2026