Engine And Engine Cooling Problems of Chevrolet Suburban - part 1

I own a 2022 Chevrolet Suburban (VIN: [xxx] ) that is included in NHTSA recall no. 25v274 / gm recall no. N252494000 for engine defects in the 6. 2l l87 v8 engine. My vehicle was inspected at an authorized gm dealer today, on 9/23/2025 (don k in whitefish montana). Instead of replacing the engine, the dealer performed the recall “remedy” of switching to higher-viscosity oil, changing the oil cap and filter, and providing an owner’s manual insert. However, the dealer service manager specifically told me that my engine will eventually fail due to the known defect and advised me not to drive the vehicle on long trips. He also told me to be careful driving if I have children, and it is only a matter of time before the engine fails, which will look like sudden shuttering, loss of acceleration and it will no longer run. He told me wait time to get a new engine after it fails is currently 8 months. This is alarming because the recall notice states that engine failure can cause sudden loss of propulsion without warning, which could be catastrophic going across multiple lanes of highway (from my home street), and entering and exiting my street via the 4 lane highway "suicide lane". I am very worried about this in the coming winter season with snow and ice. The current “oil upgrade” remedy does not resolve the underlying manufacturing defect in the connecting rod and/or crankshaft. Even after the recall service, my vehicle remains unsafe to operate, and the dealer’s own warning confirms this. I request that NHTSA review gm’s recall remedy to ensure that it adequately addresses the safety defect. A true remedy should involve replacement of the defective engine components, not just an oil change, or an immediate buy back of my automobile by the company so I can purchase another safer vehicle. My family and I do not feel safe driving this vehicle, and the manufacturer’s current approach does not eliminate the risk of catastrophic engine failure. Information redacted pursuant to the freedom of information act (foia),.

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Summary: sudden loss of engine power while driving due to lifter failure. Details: while driving my 2022 Chevrolet Suburban equipped with the 5. 3l v8 (rpo l84), the engine suddenly lost power without warning. The vehicle began misfiring and lost propulsion in traffic, creating a hazardous situation. I was unable to maintain normal speed and had to maneuver to safety while the truck rapidly lost power. The dealer later diagnosed the problem as a collapsed lifter/valvetrain failure — an issue that gm has already documented in service bulletins (pip5776g, 23-na-043) and a service update (n212353840). These bulletins show gm has long been aware of defective lifters in 5. 3l engines. This is not just a drivability concern. A sudden engine failure and loss of propulsion while driving poses a clear safety risk, especially when merging, crossing intersections, or towing. I maintained the vehicle properly and have all service records. I request NHTSA investigate these widespread lifter failures in gm’s 5. 3l v8 engines as a safety defect, since they can and do cause sudden loss of power in motion.

While driving along on a city street, the check engine light came on. Once I turned onto the highway, there was a pop from the engine, and the vehicle started missing and vibrating. I turned around and drove the vehicle back home. A mechanic looked at it and said there were a lot of problems and recalls on these vehicles for misfiring. He said the problem is the lifters and they need to be replaced as soon as possible. He encouraged me not to drive it due to it may cause more damage.

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I am driving a 2023 Suburban z71, continually on and of of the engine light and "reduction in acceleration, drive with care" this truck has the same issue and same engine as the recall, but is not included. Yesterday I was almost t boned at an intersection because the vehicle would not develop enough power to get across a street at a stop sign. One of the scariest and near disastrous occurrences of my life. This truck is deadly.

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The contact owns a 2023 Chevrolet Suburban. The contact stated that while driving approximately 30 mph, the vehicle suddenly shut off without warning. After restarting the vehicle, the vehicle operated normally. The contact stated that the failure had occurred on several occasions. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not yet contacted. The failure mileage was approximately 20,000.

Engine coolant control valve sticking and causing the fan to run continuously. (p1098). Seems to be an issue with several people.

Engine light comes on and now flashes. The service traction control and esc comes on. The whole vehicle shakes when idling. Certified gm dealer hooked it up and it says misfiring cylinder 6. All spark plugs replaced, new gm coil, new spark plug wires. Nothing has fixed it yet.

Major engine failure in my 2019 Chevrolet Suburban premier equipped with the 6. 2l v8 engine (l87). Despite routine maintenance and responsible operation, the engine recently suffered a serious failure that has rendered the vehicle inoperable. After researching the issue and speaking with several service professionals, it appears this type of engine failure may not be isolated, but part of a broader pattern affecting similar models. Given the vehicle's relatively low age and the severity of the problem, I believe this may be indicative of a manufacturing defect or premature engine wear that should not occur under normal operating conditions.

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The motor on this vehicle has been on recall since April of 2025. Several phone calls and a cancelled appointment by the dealership has netted a consistent "we have no information and aren't ready to fix the vehicle. " today, I was directed to the NHTSA to self-monitor when my vehicle would be ready for repair or inspection. Meanwhile, I drive a Suburban because I have five children that I am constantly transporting to school, sports events, scouts, etc. I have grave concerns over an engine failure while I am transporting my children and the risk of an accident.

I was driving when I received messages saying service esc, forward collision system unavailable, & service traction control. The vehicle began to shake hard when I applied brakes, had loss of power when pressing the gas pedal, and sounded like metal grinding. All of this put my children & I at risk as we were on interstate 35 with cars flying past us and I’m losing power. Initially the spark plugs and coil was were changed to no repair. It was towed to a dealership where they confirmed the lifter & cam failed which put metal in the oil. My only option is a full engine replacement costing 20k on a vehicle that’s 4yrs old. It’s not ok that I have to spend that in order to get my 70k car drivable. Im now without a car, still paying a car note, unable to get my kids places, and having to get help from friends all bc gm can’t build a quality vehicle. I also haven’t been able to get a loaner car. This isn’t happening in only the 6. 3l. This is a widely known issue with the 5. 3l as well. *there were zero warning signs that something was wrong. Drive just fine that morning*.

What component or system failed or malfunctioned, and is it available for inspection upon request? - initially, the vehicle began making loud 'clanking' sounds from the engine, which immediately affected the ability to drive the vehicle. Upon further inspection by a third-party mechanic, it was determined that the crank shaft had malfunctioned. This is a known recall for our vehicle type (model, year, engine), however, no recall notice has been received at this time. How was your safety or the safety of others put at risk? - the vehicle was slowing abruptly while in drive mode, potentially causing a vehicular accident. Has the problem been reproduced or confirmed by a dealer or independent service center? - yes, we did not deliver the vehicle to a dealer, as no assistance was initially offered when we made an attempt to call and inquire. However, a third-party mechanic was able to determine the issue. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? - not at this time, as the dealer we initially inquired with did not seem inclined to assist. We consulted with a third party. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? -no. Failure messages or icons came on after the engine failure began.

My Suburban is 4 years old and needs a new engine. The dealership is seeing a lot of 21's with the same issue. Bank 1 and 2 have failed, both powerods are broken and the cans and lifters have failed. There were no prior warning. We were driving and 2 warnings popped up and we took it to a dealership. We then went to a private repair shop for second opinion. The warranty is 70k miles and my car is 72k miles. This should not be happening with a 4 year old. The other Suburban engine has been recalled but mine has no current recalls on it.

Not sure the exact cause yet. But another big leak of coolant from the car. This is the 4th big problem with the same issue. I have been dealing with engine/radiator/coolant problems with this car since April 2024. It has been in the shop 2 separate times for 9 weeks total. With other visits in between. There is something wrong with this car.

Was driving about 45 mph on 2 lane road. All of a sudden, without warning we lost power (had no propulsion). Luckily there was a residential side street that we were able to turn onto and get off of the highway with no shoulder. We coasted to the side of the street and called a tow truck. Had we not been able to get off the road, we would have been dead in the road, blocking an entire lane of a busy 2 lane highway without a shoulder to pull off on. There was no warning prior to incident but a message did appear during the incident. I believe it said "loss of propulsion. " we turned off the vehicle, then tried to restart it. Engine attempted to restart, but it made a horrible noise & wouldn't restart. Still had battery power. Vehicle was towed to a local dealership where it is currently being evaluated. We know of a massive recall on the 6. 2 l engines. Ours is a 5. 3 l engine. So far I'm seeing many people having problems but no official recall for the 5. 3 l engines that are having the same issue as the massively recalled 6. 2 engines. This needs to be looked at. Our vehicle only had less than 30k miles on it. We bought it new and have done routine maintenance.

The vehicle is stuttering, intermittent, jumping, miss firing during acceleration, and hard down shifting. The check engine and forward collision unavailable light flashed as the vehicle struggled to accelerate. According to Chevrolet the camshaft and two lifter has failed.

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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.

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On 7/26/2025 approximately 8:30pm (pdt), driving south on CA I-880 in third lane from right traveling at approximately 50mph when vehicle engine died and went into neutral gear. Dashboard alert indicated to press start engine button, but would not start. Managed to maneuver vehicle to right shoulder amid rush hour traffic. Fortunately, a CA highway patrol officer saw us and was able to render assistance. Vehicle would not restart or go into neutral after several attempts to restart engine. Special tow vehicle was called to give us a tow home. This incident happened after we received a Chevrolet recall notice back in may or June about the engine and did take the vehicle in for service on 6/10/2025. The dealership service recommended using higher weight oil and it would help mitigate any potential issue. Obviously, this was not the case. We were very fortunate to avoid any serious injury or damage on the highway due to engine failure.

The engine in 2025 Suburban (6. 2l v8) has failed and the car is not drivable. It is currently in a chevy dealership service department waiting for parts. The 2025 model is not listed under the recall. However it should be, I know of 3 2025 engines that have recently failed. I was passing a vehicle and as I took my foot off the accelerator the transmission shifted 2 times and then the engine shut off and the car was coasting. We had no indication that the engine shut off, just several messages on the screen. ( press start button, and conditions not correct for shifting. ).

Driving down to florida, no warning, no lights, never any issues except a belt replacement. I get oil changes, tire rotation every 3500 miles. Almost got killed doing 75 miles per hour, engine sputtered, totally shut down. Coasted onto an exit ramp thank god it was right there or we could of been killed. Tow truck towed to davis chevy gainsville, they called me on Monday said good news I have a warranty bad news total engine failure, will take 3-4 weeks to replace. Now I am trying to find a gm rental large enough to get me and my family back to TN since gm said they will only pay for a gm rental car. Scary, could of gotten killed. No notice from gm about any possibe problems. . . . We almost got killed and crashed along with the other drivers on the road. Thank god it was a Sunday and 6 am so not much traffic or it would of been worst.

Our Chevrolet Suburban has 57,000 miles on it. We have started getting a check engine light and I’m getting code p1098 for the cooling control valve. This is a very common issue on these vehicles I’m noticing now. From what I’m reading in February of this year (2025) gm gave this issue an e code so these valves would no longer be covered pay the powertrain and they would now fall under emissions for a much shorter warranty coverage. This has been and ongoing issue since 2020. These valves are also commonly found to be on national back order causing long lead times and driving of the vehicles without properly functioning. Gm knows these are and issue and shortening the warranty is not the fix. These vehicles weren’t bought with a short warranty and shouldn’t be able to be reduced to a short warranty.

Lifter stuck in cylinder 3. Cost to repair $13,000 on a 2019 Chevrolet Suburban with 101,000 miles. We have owned vehicle since new. Vehicle routinely maintained.

When attempting to drive from a stop light or stop sign, after taking your foot of the brake, the vehicle intermittently completely turns off. It will not immediately restart and you find yourself stuck in the middle of an intersection creating a safety issue. The vehicle has been in to Chevrolet to have this issue fixed once already and it continues to repeat. I doubt the dealer has been able to replicate the issue as they haven't gotten the vehicle back into the shop after it's been sitting there for a week. There were no warning lights, messages, or other symptoms. It has happened to both myself and my wife, most recently on or about 7/1/25 where it happened to my wife multiple times causing us to leave the vehicle at the dealership for service. Just to be clear, the issue with the vehicle turning off is different from the standard auto stop/start feature.

Its been over a month and the dealership is unable to remedy this defect. I also called gm and they said the recall in incomplete and its in the preliminary stage. We are concerned that this is a serious safety recall and gm will not offer alternative solutions in a reasonable time.

Dealer attempting to sell 2023 Chevrolet Suburban with 6. 2l engine and no corrective action under n252494000.

No official incident has happened yet, but the brake assist kicks in, yet does not work until it's revving engine to over 4000rpm, which causes a sudden jerk and scary sounds from engine. I have had a few instances where the vehicle did not want to stop almost causing an accident, and these have happened without anything in the car other than my daughter who is 2 and myself. The most recent problem is a weird rattling sound while going uphill. Before this going uphill is extremely sluggish, where I have the gas peddle almost to the floor, but nothing happens other than decrease in speed until it finally, about 30 seconds-1 minute, where it kicks into overdrive. Even then, speed does not increase by more than 5-10 mph depending on the incline. I have not brought it to get looked at yet, as I've seen these issues have been reported by numerous consumers without any recalls being sent out other than the breaking system update.

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The contact owns a 2017 Chevrolet Suburban. The contact stated that while driving 65 mph, the vehicle started shuddering violently, prompting the contact to discontinue driving over 60 mph. Additionally, the contact stated that there was an abnormal clicking sound while making right or left turns. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed, but the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 122,000.

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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.

The contact owns a 2023 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 was dissatisfied with the manufacturer’s remedy for vehicles that pass the engine inspection. The contact had not experienced a failure. VIN tool confirms parts not available.

See attached document for complaint.

The contact owns a 2021 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 various speeds, an abnormal sound was coming from underneath the hood. The check engine warning light was illuminated. The local dealer was contacted. 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 130,000.

The contact owns a 2023 Chevrolet Suburban. The contact stated that while coming to a stop, the vehicle vibrated abnormally. Additionally, the contact stated that while driving at an undisclosed speed, the vehicle stalled with several unknown warning lights illuminated. The vehicle was able to be restarted. The vehicle was taken to the dealer, where it was diagnosed and determined that the cylinders and injectors had failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 33,190.

The coolant control valve malfunctioned on this vehichle several times during the course of ownership. It causes the vehichle to run in limp mode. This part was replaced in July 2023 at ~40,000 miles as a result. The part again began to fail in June/July 2025 with a dealer visit and diagnostic in July. This causes a check engine light, reduced milage, reduced acceleration, constant fan running and fails state inspection google searches indicate this is a very common problem, yet no recall has occured to date. The first repair was in warrantee and now the vehicle is out of warantee. If the part was not covered under the vehicle warrantee, the part and repair would have been covered by the part warantee. Becsuse of the initial powertrain warrantee repair, the part warrantee does not apply. This is clearly a defective design and part that requires recall and replacement at gm cost.

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.

What component or system failed or malfunctioned, and is it available for inspection upon request? -my engine started to make a loud ticking and knocking noise. I brought it into good Chevrolet in renton wa 6/3/25 where they told me there is an “internal engine failure due to failure of the lifters. ” when I asked the dealership for the repair estimate so I could possibly have a second opinion, they said they were “not comfortable giving their information and the problem in writing. ” they refuse to give us any documentation but were insistent that even though NHTSA has issued a mass recall for this exact same issue on the larger engine in my same year of vehicle, “it’s unrelated. ” how was your safety or the safety of others put at risk? -the engine is failing and had we not brought it in for diagnosis, I could have had full engine failure while driving with my children and been in a catastrophic crash. Has the problem been reproduced or confirmed by a dealer or independent service center? -yes the problem can be reproduced and has been confirmed by good Chevrolet. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -good Chevrolet inspected the engine but refuse to give us documentation though they had us file a claim with gm (I will attach the claim email) were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -I noticed a small noise after I had fans replaced in September but the noise gradually increased so it was brought in for diagnostics. There were no warning lamps or messages.

The contact owns a 2021 Chevrolet Suburban. The contact stated that while pulling out of a parking spot in a parking lot, the vehicle stalled. The contact attempted to restart the vehicle and observed a knocking sound coming from the engine compartment. The vehicle was not able to restart. The vehicle was towed to the dealer where it was diagnosed and determined that the engine had seized and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 23,906.