CHEVROLET Complaints

Component/system failed: The 6.2L L87 engine. The engine ultimately seized and the vehicle became inoperable. The engine should be available for inspection because it is being replaced under GM Special Coverage N252494003. Safety risk: The engine unexpectedly shut off while driving at highway speeds. Loss of propulsion in traffic creates a significant collision risk. The inability to restart left the vehicle disabled. Confirmed: An independent repair facility confirmed that the engine was seized prior to towing it to the GM dealer. Yesterday the GM dealer confirmed i had a seized engine and it was going to be replacement under N252494003 special coverage entention. Inspections: My truck was inspected in October 25, for the recall. My truck passed this test, and was subsequently was told my oil spec has been revised. Warnings/symptoms: no warning was given

Transmission shutters at lower gear going from 20-30 mph approximately and at the speed of 60-70 mph. When this happens it causes a delay in acceleration and for the whole car to shake. This was also noted by my mechanic even after changing transmission fluid and had concerns for the safety if it was to completely disrupt the transmission causing an accident. I was advised to check for recall since a lot of these makes and models have been having this issue. The SUV only has about 64,000 miles on it and has had all of its routine maintenance done regularly. I have only had it in my possession for 6 moths. No engine lights on. I do a lot of highway driving and I am concerned that this issue will possibly cause an accident. Ameritech Tire and Auto at 304-229-8924, Inwood, WV. August 12, 2026 was date of service.

For the first question, I’d strengthen it to: The vehicle has experienced repeated engine and engine-cooling system failures, including recurring overheating and coolant loss. Over approximately the past year, I have had to replace or repair numerous components, including the radiator, thermostat housing, temperature sensor, water outlet, turbocharger/turbocharger components, O-rings, multiple oil seals, and the head gasket. I have also had other cooling and engine components repaired, although I no longer have a complete list of every component that has been replaced. Despite these repairs, the vehicle continues to experience overheating and coolant loss. The vehicle has also experienced loss of power while driving. The vehicle is available for inspection upon request. The vehicle has repeatedly displayed an overheating warning. Other symptoms have included coolant loss, shaking and vibration, rough or uneven acceleration, loss of engine power while driving, and a check-engine light. The check-engine light has previously flashed during operation. The vehicle has also experienced unexplained engine-oil loss. These problems have continued despite extensive repairs over approximately the past year, including replacement of the radiator, thermostat housing, temperature sensor, water outlet, turbocharger/turbocharger components, O-rings, oil seals, and head gasket. The repeated failures have created a significant safety risk because the vehicle has overheated while being driven and has previously lost power while traveling on the highway. I have been forced to stop on the side of the road, where I was almost struck by another vehicle. The possibility of sudden loss of power or overheating while traveling in traffic creates a serious risk to both myself and other motorists.

The vehicle is experiencing repeated, sudden engine stalling while driving at speed, creating an immediate risk of a severe traffic collision. In March 2025, the fuel pump failed and was replaced by an independent mechanic, who later had to clear a system clog in August 2025 after a second stall. In August 2026, the dealership replaced the fuel pump under an official NHTSA safety recall. Within days of receiving the vehicle back, the new recall remedy failed, causing the vehicle to stall in traffic again and nearly cause a major accident. The vehicle has suffered four separate fuel-system-related failures/stalls under 87,000 miles. The manufacturer's official recall remedy has failed to resolve the safety hazard, and the vehicle remains entirely unsafe to drive.

On [XXX], my 2023 Chevrolet Silverado 1500 ZR2 (VIN: [XXX]) underwent GM's safety recall service for the 6.2L L87 V8 engine (Recall N252494000 / Special Coverage N252494003). The vehicle passed dealer inspection and received the prescribed higher-viscosity oil and calibration remedy. On [XXX], at 25,287 miles—less than five months and a few thousand miles after the recall was performed—the engine suffered a catastrophic internal mechanical failure, resulting in a sudden and complete loss of propulsion while I was getting off of the freeway. I had to coast to a stop on the side of the road. I had it towed to Murcock Chevrolet. The vehicle was serviced at Murdock Chevrolet (Woods Cross, UT), where technicians confirmed the internal failure and completed a full engine long-block replacement under GM Special Coverage warranty (Invoice total: $10,852.26). GM's initial recall remedy failed to prevent catastrophic failure, posing a serious safety hazard due to unexpected propulsion loss while operating the vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while attempting to start the vehicle, the engine failed to crank. The contact originally suspected a battery failure, as the vehicle had recently been involved in an accident that left the passenger-side mirror damaged with exposed wires. While driving at 70 MPH, a semi-truck sideswiped the passenger-side of the vehicle, causing a dent on the front door and a fractured side-view mirror. The semi-truck driver did not stop, and the contact's son drove the vehicle to the nearest exit. No air bags deployed, no warning lights illuminated, and no injuries were reported. A police report was filed. The vehicle was initially towed to a collision center, where it was determined that the battery was not the cause of the starting failure. The vehicle was then towed to a dealer, where it was diagnosed with camshaft, timing belt, and actuator failures. Upon removing the camshaft, metal shavings were found inside the engine, and the dealer determined that the engine needed to be replaced. The contact associated the failure with NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 91,733.

The contact owns a 2021 Chevrolet Malibu. The contact stated that while driving 70 MPH, the vehicle failed to accelerate as needed; however, the RPM was extremely elevated. The vehicle then lost motive power and went into LIMP Mode, and the vehicle failed to exceed 15 MPH. The vehicle was taken to a dealer on three separate occasions. After the first failure, the dealer stated that the failure was caused by an inoperable sensor, and the fuel pump was reprogrammed. The contact stated that after the second failure, which was associated with the turbo, the powertrain module was reprogrammed. The third failure was associated with the turbo seals. The failure reoccurred after all three repairs. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 96,035.

While idling in my driveway, the engine started to shake and the check engine light came on. Got it diagnosed and was told by a private repair center that we had lost compression in cylinder 4 and that it was not worth the repair and we needed to replace the engine. Got it towed to the dealership, Bill Fox Chevrolet, for a 2nd opinion and they confirmed what the private shop had said. Because the vehicle was well maintained with regular preventative maintenance, it was deemed the failure was not the fault of the owner. GM extended a goodwill warranty to help cover the cost of the engine replacement (70% coverage. We were 1 month and 2,000 miles past our warranty). They never told us root cause, only that it would have cost more money to repair it than it would be to get a new engine. The Blazer had been running fine up to that point and was my wife's main mode of transportation. The Blazer only had 62,000 miles on it when the failure occured.

The front upper control arm failed and the driver side wheel collapsed. There was no warning. Luckily I wasn’t pulling my RV camper down a mountain, it could have been catastrophic . I towed it to Carson Chevrolet. They gave me an estimate of $6,000 + for repairs. They had no reasonable explanation.

When I put the pickup in park, I get a message that states "Shift to Park". The pickup is completely stopped, the gear shift indicator is in "P". When I get out of the vehicle I get two loud two-horn alerts indicating that the pickup in not in Park, when in fact it is. Doing some research, I have seen that this is a common problem for GM vehicles. The console shift vehicles are actually involved in a class action lawsuit, while the steering column shift vehicles are not.