Engine And Engine Cooling Problems of Chevrolet Tahoe - part 2

The contact owns a 2024 Chevrolet Tahoe. 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 was concerned about parts availability and that the vehicle could experience engine failure due to parts not being available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had received the notification in April 2025. The manufacturer was made aware of the issue but provided no assistance. The contact had not experienced a failure.

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The contact owns a 2022 Chevrolet Tahoe. The contact stated that while driving at 60 mph, the vehicle briefly lost motive power but quickly returned to normal functionality. Later, upon starting the vehicle the engine almost immediately shut off and was unable to restart. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the engine after observing metal shavings in the oil pan. The contact was informed that the engine needed to be replaced. After investigating the failure, the contact related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling). The manufacturer was not notified of the failure. The failure mileage was 100,000.

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I am submitting this complaint regarding my 2021 Chevrolet Tahoe (VIN: [xxx] ) which has developed a severe transmission shudder at both low and highway speeds. The issue has been confirmed by my Chevrolet dealer, who provided an estimate of $5,492. 18 for torque converter and valve body replacement. This failure is identical to the torque converter shudder problem documented in gm service bulletins and special coverage adjustments for other gm vehicles of the same make, model, and model year. However, my VIN is not currently included in those programs, leaving me without coverage despite experiencing the exact same defect. I believe this condition poses a serious safety risk, as the shudder occurs while driving at highway speeds, causing vibration, hesitation, and potential loss of control. These symptoms could lead to accidents if the vehicle fails to respond properly during acceleration or lane changes. Given that this appears to be a widespread defect affecting multiple gm vehicles, I respectfully request that NHTSA investigate and consider expanding any related recall or special coverage programs to include affected vins such as mine. Please let me know if further documentation, service records, or dealer estimates are needed to support my complaint. Thank you for your time and for working to ensure vehicle safety. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving at an undisclosed speed, the vehicle made an abnormal ticking and knocking sound. The check engine warning light was illuminated. The contact was able to drive to the nearby dealer, where the vehicle was diagnosed based on the abnormal sounds. The dealer determined that the failure was related to NHTSA campaign number: 25v274000 (engine and engine cooling); however, the VIN was not included. The vehicle was not repaired. The contact was referred to the manufacturer for assistance. The manufacturer was contacted and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 187,000.

When I asked kunez lake geneva, WI. When the engine recall would be taken care of. I was told that GMC has to order the recall first. Then when asking about the process of inspecting. They informed me they would listen to the motor and decide if it was effected or not. I paid $82k for this vehicle. I find that listening to the motor isnt a thorough way of inspection. After they deem the motor ok. There going to put higher viscosity oil & an oil cap. What if something happens in the future. Is my familys life safety not important? summary general motors has decided that a defect which relates to motor vehicle safety may exist in certain 2021 – 2024 model year Cadillac escalade and escalade esv, Chevrolet silverado 1500, suburban, and Tahoe, and GMC sierra 1500, yukon, and yukon xl vehicles equipped with the 6. 2l v8 gas engine (rpo l87). The connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. Safety risk if the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. Remedy dealers will inspect and, as necessary, replace the engine. Vehicles that pass inspection will be provided a higher viscosity oil, which will also require a new oil fill cap, an oil filter replacement, and an owner’s manual insert.

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Car stopped while in motion, engine shutdown and could not be put into neutral to move vehicle out of traffic. Car had to be towed away. Only 37 k miles. This is the second time this has happened in traffic posing a major safety hazard. Fuel control module was what shut down the car while driving the first time. Now it has failed again.

The contact owns a 2023 Chevrolet Tahoe. The contact received a notification 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 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 issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving at approximately 40 mph, and accelerating to merge onto a highway, the check engine warning started flashing on the instrument cluster. The contact stated she heard an abnormal sound like "clunking" from under the floor boards and the engine compartment. The contact pulled over and stopped the vehicle and had it towed to a dealer. The dealer diagnosed the vehicle and determined that the number 6 lifter had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA safety hotline. The contact stated that the failure was a known problem by the manufacturer and was offered some monetary assistance. The failure mileage was approximately 61,000.

I was driving down I-635 (dallas) at 70mph on Friday 7/25 when my Tahoe started shaking, knocking and had complete engine failure. I managed to regain control and slow to the service road. Thankfully the car next to me was paying attention & swerved to avoid me, but honked at me the entire time. The vehicle was towed and we are being told we need to replace the engine for $14,500. As I’ve researched, the 6. 2l is recalled for this exact issue. The 5. 3l has no current recall but I’m clearly experiencing the same engine failure and being told I’m responsible for it. I had no prior warnings & have regularly maintained this vehicle. Any chance others have complained about the 5. 3l as well & our Tahoe’s should be included in this recall?.

Sudden engine failure while driving at high speeds - was not aware of any recall.

Engine starting banging loudly and misfiring. There was a loss of power and engine codes. Brought to the dealer and they said cylinder #4 was misfiring due to a stuck lifter, bent push rod and destoyed cam. Total cost of repair was $9200. Vehicle is less than 4 years old an has 75,000 miles on it.

The contact owns a 2022 Chevrolet Tahoe. The contact stated while driving 70 mph, the vehicle lost power in the middle of the roadway. The contact was unable to pull over to the shoulder of the roadway with the rear wheels seized. The “service transmission” warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the front brakes. The vehicle was repaired, but the failure reoccurred. The vehicle was towed back to the dealer, who was unable to determine the cause of the failure. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 73,000.

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at various speeds, the vehicle lost power and shut off unexpectedly. The contact stated that several attempts were needed to restart the vehicle to continue driving. The check engine warning light was illuminated during the failure. The vehicle made an abnormal ticking sound while idling. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure and confirmed that the VIN was not under recall. The manufacturer referred the contact to the NHTSA hotline to report the failure. The failure mileage was 24,971.

I was driving at a normal speed with my family in the car my son has neck pain since that date and the car just turned off I almost got rear ended and didn’t want to start.

Lifter failure and camshaft failure. Found metal in engine oil that has caused bearing failure and engine damage. While driving the Tahoe on [xxx] I experience a jolt on the front right side. Then warning messages regarding the traction control and to service the esc appeared. As I cleared those messages my engine light was blinking and several other dash lights were lit up. There was a knocking sound. I contacted the dealership (coyle Chevrolet in clarksville, in) and they sent a tow truck to bring it in. They assumed it would be in the recall but it is not. I am without a vehicle and the engine is backordered. It's not right that gm is picking which engines they are going to include in the recall when they know there is a manufacturing issue. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On 01/03/24, the vehicle stalled and smoked on the suncoast parkway. All dashboard warning lights and messages illuminated, and the vehicle entered emergency park mode. Onstar was contacted and the vehicle was towed to jenkins Chevrolet in homosassa, FL. The failure was linked to a broken pulley and belt system that damaged the ecm and wiring harness. No dtcs were pulled, and mileage in/out was 80042/80043—no test drive performed. On 08/06/24, the vehicle returned to jenkins for a roaring noise. A pulley bearing was replaced, possibly related to the earlier failure. Again, no drivability evaluation or codes recorded. On 03/09/25, the same full system warning lights/messages appeared again. The vehicle experienced harsh shifting and delayed acceleration. It was taken to autonation Chevrolet south clearwater on 03/10/25. Dtcs (p0700, p0717, p2714, p2716, p0706, and u-codes) were found but dismissed. Only the battery was replaced. Mileage in/out was 99494—no test drive performed despite claims one occurred. On 07/08/25, the vehicle again showed full dashboard warnings. Brought back to autonation on 07/09/25. On 07/14/25, customer received a $9,177. 85 estimate including full transmission replacement. Safety was at risk due to repeated stalling, loss of acceleration, and emergency parking mode while driving or merging. These failures could have led to accidents or left the vehicle disabled in traffic. Driver and children were present during each incident. The vehicle is enrolled in onstar and the mychevy app, which provide monthly health reports. Despite these incidents, no faults or warnings were ever shown in the reports. Vehicle remains available for inspection. A case is open with gm. Across 4 service visits, gm-certified dealerships failed to follow proper protocols, including code checks, drivability assessments, and test drives—contributing to delayed diagnosis of transmission failure.

The affected components are the electrical system, engine, and power train. In March 2025, my 2021 Chevrolet Tahoe displayed multiple warning lamps across the dash, including traction control and check engine lights. The vehicle shifted erratically and sometimes entered limp mode. I brought the vehicle to autonation Chevrolet south clearwater for inspection. The dealer replaced the battery, dismissed my concerns, and stated that a test drive was performed, but the mileage in and out on the invoice was identical, showing it never actually occurred. Diagnostic trouble codes (p0700, p0717, p2714, p2716, p0706, and multiple u-codes) were present but were not fully investigated. A gm technical service bulletin (21-na-149, December 2022) covers these exact symptoms (caused by engine wiring harness chafing), but it was never referenced or applied. Because the problem was not addressed, the condition worsened. By July 2025, the vehicle suffered a complete transmission failure. At that point, the dealer confirmed the issue, documenting transmission slipping, shuddering, noise, and additional codes (p0700, p077c, p17f6, p17fb, p1872). Gm increased its goodwill contribution from 15% to 40% of the $9,925 repair cost, while autonation offered only $500 despite their role in the missed diagnosis. Safety risk: my family and I were at risk each time the vehicle stalled, lost power, or shifted erratically while driving, including at highway speeds. These failures created a significant risk of collision. The drivability problem was not properly confirmed in March 2025 despite multiple codes being present. By July 2025, the dealer acknowledged and confirmed the transmission failure. The vehicle remains available for inspection, and I have retained all invoices, diagnostic reports, and communications with gm and the dealership.

The affected systems are the power train, engine, and electrical. My 2021 Chevrolet Tahoe experienced failures consistent with gm technical service bulletin 21-na-149 (engine wiring harness chafing) and the conditions outlined in recall n232404190 (valve body failure, November 2024). Beginning in March 2025, the vehicle displayed warning lights and messages including check engine, traction control, service transmission, and limp mode (reduced acceleration – drive with care). The vehicle shifted erratically, lost power, and occasionally failed to accelerate, creating a serious safety hazard at highway speeds. These problems were documented at autonation Chevrolet south clearwater, where multiple diagnostic trouble codes (p0700, p0717, p2714, p2716, p0706, and u-codes) were recorded but not properly investigated. No test drive was performed despite being claimed by the service technician, and the applicable TSB was not referenced. By July 2025, the condition worsened into a complete transmission failure, with additional codes (p0700, p077c, p17f6, p17fb, p1872). The dealer’s estimate required a full transmission replacement at nearly $10,000. Gm reviewed the case through its internal policy evaluation tool and increased goodwill assistance from 15% to 40%, while autonation contributed only $500. Gm’s partial contribution confirms the defect is recognized, yet this VIN remains excluded from the official recall. This issue placed my family and other motorists at significant risk, as sudden loss of power and shifting failures occurred during normal driving conditions. Dealer records, gm documentation, and photographs of warning messages are available. I request that NHTSA expand recall n232404190 to include affected vins such as mine, since the symptoms, diagnostic codes, and confirmed failures match exactly what gm has already identified as a known safety issue.

Failed coolant control valve and months-long wait for replacement part. Error code p1098. Service center informs us that the parts shortage is nation-wide. We must frequently monitor the engine temperature, which distracts from attentive driving.

Need new rotors and breaks purchased this vehicle with this issue and dealership or manufacturer want to fix this serious problem.

The contact owns a 2024 Chevrolet Tahoe. 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 local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

My 2021 Tahoe high country began to make unrecognizable sounds and the orange engine light started blinking. I immediately pulled over and turned the vehicle off. I was made aware that numerous 2021-2024 v8 6. 2l engines are affected. I am waiting for my VIN to be selected in some sort of lottery format to qualify for a fix. I was told by a chevy service technician that it can take 2 weeks or 2 years for gm to find a “remedy”. Unacceptable and very expensive to rent a vehicle for work until gm decides to “remedy” my situation. I truly hope they provide me with a solution soon.

I’m reporting a transmission failure that occurred unexpectedly on my 2021 chevy Tahoe/the diesel version has been recalled so I don’t know why all the other 2021 Tahoe have not been recalled for this issue . The vehicle began shifting roughly and slipping between gears, followed by a warning message and eventual inability to shift properly. I had it inspected by a family friend who owns a body shop , and I was told the transmission needs to be replaced at a cost of nearly $7,000. I am no longer under powertrain warranty, but this failure feels premature and unsafe for such a new vehicle. I’ve seen many other 2021 Tahoe owners report similar issues online including transmission failure, harsh shifting, valve body problems, and complete breakdowns . This seems like a pattern, and I believe it may warrant investigation. I’m asking NHTSA to investigate whether this is part of a broader transmission defect that poses a safety or reliability concern. Sudden shifting issues and inability to accelerate or reverse are dangerous for drivers and passengers. Thank you for your time and attention to this matter.

Leaving the stoplight, all the sudden the dash read service ecm in the motor started clanking. Took it to the dealership where they told me the cam and lifters were bad and said we might as well get a new motor $17,000. And not approved by extended warranty, crooks.

The contact owns a 2024 Chevrolet Tahoe. 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. An unknown 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 issue. The contact had not experienced a failure. VIN tool confirms parts not available.

[xxx] # [xxx] VIN = [xxx] make ; Chevrolet Tahoe 2021 re : I received a recall affects certain 2021-2024 models equipped with the 6. 2l v8 l87 engine. The defect involves the connecting rod and/or crankshaft engine components, potentially leading to engine damage or failure. On March 2025, my tohoe completely stopped while I was driving. My SUV was towed to bomnin Chevrolet in manassas virginia. They diagnois was crank shaft damage leading to engine failure. My SUV was in the dealership for 2 weeks while the engine was replaced. I spent a total of $ 15,027. 20 to fix my car for that problem. I called gm recall about this problem. I was informed that the recall was for only certain vehicles. Not my SUV. I am concerned that my SUV was affected by faulty crank chaft. I had to replace the engine. Thanks, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I was driving home from a long trip and heard a large pop. Several warning signs and messages began popping up and the vehicle was shaking and struggling to maintain speed. I was able to get home and get my family out of the vehicle and get it to a dealer down the road. They stated the fuel injector and harness had failed.

See attached document for complaint.

The contact owns a 2023 Chevrolet Tahoe. 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.

While traveling on the highway, the vehicle suddenly lost all power. The gas pedal became unresponsive, and the engine ceased functioning entirely—without any prior warning or indicators. I was forced to coast into a nearby parking lot to prevent a potential collision. This incident put both myself and my child at serious risk of injury or worse, had it occurred at a higher speed or in heavier traffic. Once stopped, the vehicle would not restart. I had no choice but to have it towed to the dealership for evaluation. A week later, the dealership diagnosed the issue as a locked-up engine, confirming that a full engine replacement is necessary. Unfortunately, the replacement engine is currently on backorder, and they are unable to provide an estimated time of arrival. To make matters worse, the dealership has no loaner vehicles available for at least a month. Gm only offers a rental reimbursement of $44 per day, which is significantly below the cost of even a basic rental vehicle in our area ($74/day). This leaves me with limited transportation options, even though I am currently making monthly payments of over $1,400 on a vehicle that is completely unusable. Adding to the severity of this situation, the vehicle is also subject to a manufacturer recall, but no remedy or parts are currently available to resolve the issue. As a parent of multiple children, this entire experience has left me shaken. I cannot begin to imagine the consequences had this failure happened at a higher speed or in less forgiving conditions. I am extremely concerned for my family’s safety going forward. Gm has stated they will not extend or provide additional warranty coverage until the repair is complete, which leaves me feeling unprotected and anxious about the future reliability of this vehicle. The absence of warning signs and the total loss of power while driving make this a critical safety concern that must be addressed. I urge NHTSA to hold the manufacturer accountable.

The contact owns a 2023 Chevrolet Tahoe. The contact received notification of NHTSA campaign number: 25v274 (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 stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The vehicle has a safety recall stating the vehicle has been affected and the engine could fail during operation and loose propulsion with an increase risk for a crash. There are not any precautions in place or offered neither is there any part available to repair the vehicle in the near future. The vehicle is a 2022 Tahoe with 60,000 miles and still under the manufactures extended warranty and they have no solution to offer any remedy at this time.

The contact owns a 2018 Chevrolet Tahoe. The contact stated that while starting the vehicle, the engine made abnormal rattling and knocking sounds. No warning light was illuminated. The vehicle was taken to the dealer, who determined that the camshaft and valve train needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling); however, the VIN was not included in the recall. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA hotline. The failure mileage was approximately 90,000.

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My vehicle’s engine has been recalled since June. The dealer refused to inspect because there is no remedy to replace the engine. I have complained since I purchased the vehicle of noises that I’ve heard. I am hearing more noises, and I am increasingly getting more scared every day to drive my vehicle. I will not put myself nor my family in harms way I can get into an accident. I am afraid to drive the vehicle. I am not taking any chances of hurting anyone else or my family or potentially have a fatal accident. Two months of driving around scared I will not drive my truck anymore. I am beyond upset that there is no remedy for this and that it is not taken seriously. Something needs to be done regarding my situation and all others. The vehicle was sold, most likely knowing that this was a problem. Gm needs to make good on this problem before people get killed. I would like them to buy back my vehicle, I am sure I qualify for a full re-purchase. I called gm. They will get back to me in five business days. I cannot emphasize how afraid I am to drive my vehicle and I paid $110,000 for this vehicle.

Unusual knocking noises, performance issues, high rpm, - traction control light is on feels at times the engine is on verge of losing power while I'm driving on the highway with my children and I could get hit check engine light blinking constantly.