CHEVROLET Complaints

The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving at various speeds, the vehicle lost motive power and failed to accelerate while depressing the accelerator pedal properly. The vehicle was taken to the local dealer, who discovered metal debris inside the transmission and advised the contact that the transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 106,000.

I own a 2021 Chevrolet Silverado 2500HD Duramax diesel with approximately 100,300 miles. The truck began displaying a “Service Emissions System” warning and a countdown message that in a certain number of miles the vehicle will be limited in speed (for example to 65 mph). GM’s own Duramax diesel owner’s supplement explains that when a “Service Emission System” message appears it is accompanied by a distance-until-speed-limit countdown and that the truck will progressively limit speed first to about 65 mph and then to about 55 mph if the condition is not corrected, telling the owner to see the dealer. This creates a safety risk because the derate can occur while driving on highways or rural roads, where an unexpected limit on maximum speed can interfere with merging, passing, and keeping up with traffic. This is our only vehicle, and we must use it for important medical appointments, including cardiology and surgery-related visits. The condition started only about 300 miles beyond GM’s 5-year / 100,000-mile powertrain warranty. I opened a case with Chevrolet / GM Corporate (Service Request No. XXX) and took the truck to Sons Chevrolet in Columbus, Georgia on November 17, 2025 for this issue and a rear wheel lockup recall. The dealer kept the truck from about 9:00 a.m. to 3:00 p.m. and indicated they might need to keep it for at least two more days, but I was not given a clear written explanation of the diagnostic trouble codes or a firm repair plan. Because GM’s own manuals describe this “Service Emission System” message together with speed-limit countdowns, and because the vehicle can actively limit speed on the road if the fault is not resolved, I am concerned this represents a broader emissions/derate defect on late-model Silverado HD Duramax trucks. I request that NHTSA review similar complaints and consider whether further investigation or a safety recall is warranted. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My 2017 Chevy Cruze had the throttle body replaced by STG Auto Group in Montclair, CA. A few months after the repair, my car began shaking violently and then shut off in the middle of the street while I was driving on 11/17/2025 This created a serious safety hazard for me and other drivers. When I took the vehicle to a local auto zone once the vehicle turned on , they told me the throttle body “needs cleaning,” but a new throttle body should not get dirty within a few months. This suggests improper installation or a defective part. The problem returned even though the part was recently replaced. I immediately called the dealership who fixed it and the manager stated I’d have to wait to the following week for another inspection and that I can not be squeezed in . The vehicle is still unsafe to drive because it shakes and can stall unexpectedly. I am concerned because this issue has happened more than once and could have caused an accident. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

When driving at low speeds the brakes do not work. The vehicle will stop, but it is very hard to get it to stop. You must push the brake pedal all the way to the floor to get the brakes to work. This does not happen all time it will just happen out of no were, this can be scaring. I looked up to see if our vehicle has any current recalls, which it does not. But on 9/19/2019 we had our vehicle in the shop and they did do a recall at this time. It was Increased Brake Pedal Effort. NHTSA Campaign # 19V645000 and this sounds like exactly what was happening. This was done when our vehicle had 60,000 miles on it and at the time it was having no symptoms. We had never had any brake issues at this time. Now our vehicle is having these issues and I feel that this safety issue should be another recall on our vehicle and should be covered and fixed as it sounds like the same issue. Please let me know what can be done about this.

My steering failed. I was driving under 30 mph and my steering locked up and I was presented with a Service notification "Stabilitrak". I can not turn my wheel and was not able to go down my driveway.

The vehicle was in a collision that occurred to the front of the vehicle causing the seat belts to lock up a burst of compressed air to come from the dash, the hazards to engage and the dome lights to engage, the vehicle then was taken into get repaired at a certified dealership, after dealing with the dealership and General Motors we find out the sensor did engage for the airbags to deploy but the airbags failed to deploy properly or break through the dash, the dealership and manufacturer are now not wanting to find out why this is doing this and just put a new airbag baffle in and call it a day.

engine is knocking very bad. GM Dealer says it is an issue w/ the piston main bearing and the engine needs to be replaced. Says vehicle should not be driven.

This in addition to complaint form number:11699917 I have found the two forms issued by the GM global corp. One is a recall the other a bulletin about the HPFP fuel regulator to be replaced because it was known to fail. The first actual recall (13370 ) states that 25,000 vehicles were involved. The symptoms they stated are all the same that the vehicle I own are having including fuel fumes in the cab and under the hood . In 13370 right at the top it states urgent so this problem is definitely a safety concern for fire or explosion. In 13370A they eliminated a lot of these details including the words urgent and the amount of vehicles that were involved in this recall. And at the bottom of 13370A it also states that the following two paragraphs does not pertain to Canada , THIS is important because my vehicle was born in Canada ????. So everything stated above that involves Canada manufacturing also. So this means my vehicle should be included in this recall also like I stated in my complaint to this safety commission 11699917 . My vehicle has the 5.3 , it’s a 1500 Silverado and it’s a 2014. Recalls don’t expire for safety as far as I heard. There is no reasonable explanation as to why this vehicle was excluded except it was manufactured in Canada and fell through the cracks of their recall . Without a recall they will not look at any bulletin for this safety issue on my vehicle. This is a very expensive repair to be done and GM knows this also.

During the first transfer case fluid service on a 2019 light-duty 4WD truck equipped with an Autotrac two-speed transfer case, the drained fluid was bright red and consistent with automatic transmission fluid rather than the required GM Auto-Trak II blue/green fluid. The transfer case had never been serviced since new, so the fluid appeared to be the original factory fill. Before the discovery, the vehicle occasionally hesitated when shifting between drive modes and sometimes felt as if the system was binding or briefly locking up during transitions between 2WD, Auto, and 4WD modes. These symptoms were intermittent and no warning lights appeared. Using the wrong fluid in this type of transfer case can affect clutch-pack operation and may cause premature wear or loss of proper torque transfer. The system has now been refilled with the correct fluid, and the drained fluid is available for inspection. The issue has not yet been inspected or confirmed by a dealer.

The contact owns a 2023 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the engine was running rough. The message "Service ECM" was displayed. The vehicle was taken to Auto Zone, where diagnostic trouble codes displayed fuel injector misfiring on cylinders 1 and 4. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was unknown.