2024 Chevrolet Suburban Engine Problems

While driving down a two-lane blacktop road at 70 MPH (the posted speed limit) the engine, a 6.2 L L87 with a little over 15,000 miles, grenaded and seized. At the time I recall a warning message that said something like "engine shutdown". Fortunately the electronic transmission self-shifted into neutral so the car could coast to a stop. Had it not done this a loss of control would have been likely at this speed. The vehicle was towed to the local Chevrolet dealer in Bozeman, Montana (Resseler Chevrolet) where it was confirmed the next day the engine had seized. The dealer is currently replacing the seized engine with a replacement long block. The dealership currently has the engine and is planning to ship it back to Chevrolet or GM for tear down and inspection. They are also replacing the radiator and all coolant hoses as a precaution. Two weeks prior I took the vehicle to the same Chevrolet dealer complaining that on one day the engine shut off four times within 1 mile. Each time it displayed a warning message that said "restart engine", which it did each time. I also complained about a ticking noise that began in the engine at 12,000 mile. The dealer reported that the engine sounded fine and that they could not reproduce the engine shutting off on its own. This engine was NOT part of the large L87 recall. At time of purchase I was told by the selling dealer (Kendall Chevrolet in Maryville, Washington) and the local dealer (Resseler) that the engine was assembled after assembly line procedure were put in place to avoid the same issues as the recall engine. I've been and engineer for 46 years. The problem with this engine is not the assembly line, it is the never before used tight moving component tolerances and the water thin oil demanded by the manufacturer. The design shortcomings are compounded by systems such as cylinder deactivation and auto stop that significantly acceleration engine component wear.

NHTSA ID

11764157

Incident

Aug 27, 2026

Vehicle brought to Chevrolet dealer for recall# N252494000 at 27,626 miles. Vehicle passed inspection and oil replaced per recall. Despite engine passing and recall complete the engine failed at 29,861 miles requiring an engine replacement which was provided under warranty. The failed engine was taken by GM.

NHTSA ID

11761811

Incident

Jan 12, 2026

This an addendum to my original submission. Took my 2024 Chevy Suburban the the dealership XXX, my engine making unusual noises. Due to the severity of the sounds vehicle was towed to dealership in [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11759531

Incident

Aug 22, 2026

Initial indicators lead to engine failure as a result of defective part internal to the engine.

NHTSA ID

11759013

Incident

Aug 24, 2026

Transmission faulty, loud, clunky and hard shifting! Service transmission now alert and code P0747

NHTSA ID

11751709

Incident

Apr 13, 2026

On May 2, 2026, while the vehicle was in operation, the engine suddenly shut off without warning. At the time of failure, the instrument panel remained illuminated; however, the vehicle would not restart. In an effort to resolve the issue, the battery was replaced, but this did not correct the problem. The vehicle was then towed to a local Chevrolet dealership for further inspection and diagnosis. Following their assessment, I was informed by the dealership’s service department that the engine had seized and that metal debris was present in the engine oil, indicating significant internal engine failure. I was further advised that a replacement engine has been ordered. At no point prior to this incident were there any warning indicators, abnormal noises, or performance issues that would have suggested an impending engine failure. The sudden nature of this incident raises concerns regarding the cause of failure and whether it may be related to a defect or internal mechanical issue.

NHTSA ID

11737261

Incident

May 2, 2026

The vehicle would jerk when changing gears and would have a rattle and vibration when accelerating.

NHTSA ID

11735937

Incident

May 2, 2026

Complete and sudden failure of the L87 V8 engine at 70 mph on the highway. Had to maneuver to the right shoulder and coast to a stop. Engine was seized and would not restart. Waited 4 hours on a dangerous highway for a tow truck which took the Chevy Suburban 200 miles to my home Chevrolet dealership. They have ordered a new engine but it is on backorder so no ETA. Vehicle was built 06-26-2024 and has not been recalled so Chevy says I do not get the extended warranty on the replacement engine.

NHTSA ID

11721740

Incident

Feb 25, 2026

The contact owns a 2024 Chevrolet Suburban. While driving at an undisclosed speed, the vehicle hesitated while accelerating. The vehicle was previously repaired under NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the failure persisted. The local dealer was contacted; however, the vehicle was not repaired. The manufacture was not notified of the failure. The failure mileage was 27,300.

NHTSA ID

11714279

Incident

Sep 1, 2025

Mileage

27,300 mi

The vehicle went into limp mode! Everything associated with it happened so quickly,no brakes,no steering ,it was terrifying. We got safely to a gas station. We were advised to take it to a certified Chevrolet dealer which we did We had it towed to the certified Chevrolet dealer in Charlevoix, Michigan.They hooked it up to the diagnostics and said they found absolutely nothing wrong with the vehicle.Very Frustrating! After experiencing this terrible incident will never feel safe in this vehicle!

NHTSA ID

11713441

Incident

Dec 27, 2025

Sudden power loss on highway. Engine would not respond. We were fortunate to have been able to pull over to the side of the road but in an unsafe merging area. Vehicle restarted after multiple attempts, but engine would not exceed 3000 rpm causing unsafe speed on highway. Engine died again causing total power loss. I was able to coast down the hill to safely park out of the way of traffic. Tow truck was needed. Vehicle was towed to dealer where it was purchased. After inspection, the engine was confirmed to have failed. The dealer advised for engine replacement as part of the L87 recall. This engine was previously inspected less than 10,000 miles prior as part of the same recall, and the higher-weight oil had been used since per the manufacturer's recommendation. However the inspected engine appears to have failed regardless. This sudden loss of power happened about two weeks prior, with the driver able to pull to safety and restart. It was dismissed as a fluke since it did not occur for the next two weeks.

NHTSA ID

11712278

Incident

Nov 28, 2025

I took my 2024 Chevrolet Suburban to get repairs associated with GM safety recall N252494000 - L87 Engine Loss of Propulsion. My vehicle "passed" the test, so the "correction" employed by GM is that "vehicles that pass inspection will be provided a higher viscosity oil, which will also require a new oil fill cap, an oil filer replacement, and an owner's manual insert." All of this was done free of charge. However, the owner's manual insert states that "For future engine oil changes, use SAE OW 40" oil. This updated owner's manual insert, which is provided as a solution to GM's recall of a faulty connecting road and/or crankshaft, causes the future costs of oil changes to increase from $160.00 to $230.00. Assuming quarterly oil changes, this will increase the cost of operating this vehicle to increase by $2,800 over an estimated 10 year lifespan. This increase should be covered by GM. GM sent me a letter that states, "If your dealer fails or is unable to remedy this defect without charge, or within a reasonable amount of time, you may submit a written complaint to the Administrator, NHTSA." By passing on the cost of the increase in oil change for all future oil changes, GM failed to remedy this defect without charge. I submit this claim because GM filed to remedy this defect without charge. Please see highlighted portions of attached documents in support.

NHTSA ID

11695541

Incident

May 1, 2025

i pulled on to the road and i heard a loud knocking and my vehicle started skipping and wouldn't go. the lights on the dash lit up and said, "brake failure" and "emergency brake failure" and i had no brakes. I managed to coast into a parking lot. The engine light was on. I turned the vehicle off and waited about 5 minutes and turned it back on, The engine light remained. The first time this happened I was going down the road and the vehicle started sputtering, the emergency brake light came on the dash and the car shut off. It has a rough idle when you start it. I am terrified of this car. I have grandbabies in the car with me, Had i been on the highway either time i would have caused a terrible accident. The dealer says they can't get the car to do it so they can't fix anything. It has happened twice so you know it will again.

NHTSA ID

11695456

Incident

Oct 7, 2025

The contact owns a 2024 Chevrolet Suburban. The contact stated that while depressing the accelerator pedal, there was a loud rattling sound coming from the engine. The contact stated that while depressing the brake pedal, the vehicle failed to respond as intended while driving with her grandchildren inside the vehicle. The brake failure warning light was illuminated. The contact stated that the vehicle lost power and coasted and slowed down, and the contact shifted into park(P). The contact stated that the failure had occurred on two separate occasions. A dealer was contacted. The vehicle was taken to a dealer, where it was diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 16,600.

NHTSA ID

11695445

Incident

Oct 7, 2025

Mileage

16,600 mi

The contact owns a 2024 Chevrolet Suburban. The contact was notified of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact requested a work order on the vehicle for the recall repair and the dealer refused. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was also made aware of the issue and refused to create a work order for the recall repair. The contact was provided a case number. The vehicle was not repaired. The contact had not experienced a failure.

NHTSA ID

11688996

Incident

May 14, 2025

The contact's son owns a 2024 Chevrolet Suburban. The contact stated that his son had received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact's son had been calling the local dealer and was informed that parts were not yet available for the recall repair. The contact was informed by his son stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not informed of the issue. The contact had not experienced a failure.

NHTSA ID

11685223

Incident

Apr 24, 2025

The engine light comes on and then the rpm's drop to 35 and a notification comes up that says "reduced acceleration. driving with caution". If I stop and turn of the vehicle and restart the rpm's will be better but the truck still seems to have a difficult time increasing in rpm's and accelerating gears. It's incredibly dangerous as if I'm driving at a substantial speed on the highway or freeway and it drops rmp's rapidly I'm likely to be in an accident which could be detrimental. The dealer has had my vehicle on two separate occassions. The most recent time they've had it for 5 days and still do not know what's wrong with it. The engine light will not turn off.

NHTSA ID

11681402

Incident

Jul 30, 2025

See attached document for complaint.

NHTSA ID

11672405

Incident

Jun 21, 2025

The contact owns a 2024 Chevrolet Suburban. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ID

11668753

Incident

Jun 23, 2025

The contact owns a 2024 Chevrolet Suburban. The contact received notification of NHTSA Campaign Number: 25V274000(Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that while driving at an undisclosed speed and depressing the accelerator pedal, the vehicle intermittently failed to accelerate as intended before slamming into gear. The local dealer was contacted. No further information was available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 4,000. VIN tool confirms parts not available.

NHTSA ID

11666614

Incident

Jun 12, 2024

Mileage

4,000 mi

Since purchasing the vehicle on September 27, 2024, I have experienced a series of troubling issues that raise serious concerns about its design, manufacturing, and overall safety, including: Airbag system malfunction: My airbags were nonfunctional for over a month. Tire-related issues: Required full replacement of the initial set of tires. Persistent alignment problems Bluetooth audio problems: Poor quality and connectivity with multiple phones, resolved only after a service visit in May 2025. Defective seat frame: Rear passenger-side bucket seat required full replacement. Defective paint: Blisters and bubbles in the rear quarter panel paint. Fuel module failure: Most concerning, the vehicle abruptly stopped on the road last week and required towing. I was later told the cause was a fuel module failure. Each of these issues is concerning on its own. Taken together, they represent a troubling pattern of unreliability and potential risk to my safety and that of others on the road. They’ve also resulted in a significant loss of my time. This vehicle has spent over a month at the dealership for service—astounding for a truck that’s only eight months old. These are the kinds of delays and disruptions I specifically try to avoid by purchasing and maintaining new Chevrolet vehicles.

NHTSA ID

11666254

Incident

Jun 4, 2025

I parked at my home, approximately 5 minutes after arriving home my grandson ran in yelling papa your car is on fire. The engine was on fire, shooting flames onto the windsheild. The cause of fire is unknown at this time.

NHTSA ID

11655369

Incident

Apr 15, 2025

I was entering the interstate, at 65 miles per hour, and went to set the cruise once I reached 70mph, and noticed that I was losing power, the engine had stopped and we dangerously lost speed on a interstate where folks were traveling north of 75-80 mph. I costed to the shoulder and tried to reset with no luck. We called Onstar and had it towed to Hendrick or Monroe NC. We found out that this was an engine failure and the long block had to be replaced. This left us stranded without a car to drive to our cruise —GM told me I could buy plane tickets and they’ve never denied reimbursement. Unfortunately they denied it once I submitted all the receipts. It been a horrible experience with no help from GM.

NHTSA ID

11651442

Incident

Jul 13, 2024

We were driving down the [XXX] in Wichita KS when our 2024 Suburbans engine shut off and the car went into neutral. The display said “ "conditions not correct for shift". We were able to safely coast to the nearest exit [XXX] and we completely stopped at the bottom of the exit ramp. We contacted onstar who dispatched Kansas Highway Patrol who blocked off the exit until we could get the vehicle towed. The car is currently at the dealership, being that it is Sunday they are closed so more information tomorrow on the issue. The photos are of the car being towed from The incident location and dropped off at the dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11650033

Incident

Mar 23, 2025

On[XXX], at approximately [XXX], while driving on [XXX] at a speed of 80 mph, my vehicle suddenly lost all power and shut down without warning. I had no choice but to steer to the shoulder lane amidst high-speed traffic on the busy interstate. After coming to a stop, the car would not restart, leaving me stranded in a highly precarious situation. As the weather conditions worsened, turning into a blizzard, and darkness set in, I contacted GM Roadside Assistance for help. I was informed that assistance would take at least an hour to arrive. Feeling unsafe, I called local law enforcement. The officers arrived and parked behind my vehicle with their flashers on to ensure approaching drivers would slow down and avoid an accident. This was an extremely distressing and frightening experience. After an hour, GM Roadside Assistance called back and informed me they were unable to find an operator to tow the vehicle. By this time, the officers on-site had contacted a local tow company for my safety. The tow company advised me that I would need to pay in cash for their services, which I accepted due to the urgency of the situation. They towed the vehicle from [XXX] to their yard in Douglas, Wyoming. I then arranged for a ride to Cheyenne, Wyoming, where I had to report to work that night. This incident not only jeopardized my safety but also left me with significant unexpected expenses and inconvenience, all due to what I believe is a manufacturing defect in the vehicle. A new vehicle should not experience such catastrophic failure, and the delayed response from GM Roadside Assistance compounded the problem. I respectfully request the following actions 1. A thorough investigation into the root cause of the sudden failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11638176

Incident

Jan 22, 2025