CHEVROLET Complaints

I am writing to formally document a series of catastrophic mechanical failures involving my vehicle, as well as serious inaccuracies currently reflected on the Carfax report. At approximately 15,000 miles, my vehicle experienced a catastrophic engine failure that required a full engine replacement. Less than 900 miles after the engine replacement, the vehicle then suffered a catastrophic transmission failure, which also required replacement. In connection with the transmission failure, there was also a fuel module issue that left me stranded. These failures were not minor or routine service events. One breakdown occurred on a major roadway and required the road to be shut down due to the vehicle being disabled. Another breakdown occurred on the Florida Turnpike as a result of complete engine failure, leaving me stranded in a highly dangerous situation. Despite the severity of these events, the Carfax report does not accurately reflect what occurred. The Carfax report does not state that the engine was replaced, and the transmission failure is not identified as a transmission replacement at all. Instead, it is reported as routine or normal service, without any indication that a catastrophic transmission failure or replacement occurred. This misrepresentation significantly understates the true condition and mechanical history of the vehicle. Due to the repeated catastrophic failures, the circumstances under which they occurred, and the risk posed to my safety and the safety of my family, I am genuinely afraid to drive this vehicle. I want to ensure that all of this information is properly documented and that the vehicle’s records accurately reflect its true history and condition.

My 2021 chevy 3500hd diesel had the engine light come on and the service emissions system popped up in the info screen. It said in so many miles speed would be limited. I took it to the dealer and they said the def tank would need replaced because the tank wiring connector overheated and would cost me over $2k.

Constant overheating issues with coolant loss. I have changed so many parts in this engine to correct the issue and nothing is working. There are far too many complaints online with this specific model. Why hasn’t there been a recall on this issue? This is a safety concern especially when the engine loses power while driving.

On 1/27/26, while driving at highway speeds, I received a "Reduced Engine Power" alert. I was forced to pull over immediately; the vehicle stalled before I could reach a complete stop. This left me stranded in dangerously cold temperatures for an extended period while awaiting a tow. Upon inspection, I was informed that the engine has failed and requires a complete replacement. This is highly distressing for several reasons: * Low Mileage: The vehicle has only 54,000 miles and is well under the expected lifespan of a modern engine. * Meticulous Maintenance: As a loyal customer, I have had every scheduled oil change and service performed at my local Chevrolet dealership. My service history will confirm that this vehicle has been maintained to the highest standards. * Brand Loyalty: I have been a dedicated Chevrolet owner for years, having purchased five brand-new vehicles from your dealerships. I chose Chevrolet based on a reputation for reliability that, in this instance, has not been met. "I am specifically concerned because my vehicle's symptoms align with Special Coverage Adjustment #14882 (PCV Icing). Given that the failure occurred during extreme cold and resulted in immediate engine failure, it appears to be the exact scenario outlined in your technical service bulletins regarding the 2.4L engine. I am requesting that this repair be handled under that special coverage or a similar goodwill extension." My research indicates that this specific engine model has a documented history of similar issues. Given my history with the brand and the premature nature of this failure, I am requesting that Chevrolet review my case for a goodwill repair adjustment or a significant cost-sharing assistance for the engine replacement.

When driving, between the speeds of 40-50mph, the wheels would lock up without warning. This happened 4 times during the month of January, sometimes in 4wd. This occurred at speed when the vehicle seemed to be upshifting. Control of the vehicle would be lost during the lockup as the wheels would stop rotation entirely and rather violently. Check engine light came on after the 4th incident, reducing power and a code of P0747 "Pressure Control Solenoid "A" Stuck On". The transmission valve body was repaired by the local Chevrolet dealership under powertrain warranty. This is a known issue on previous years of this truck with the same transmission but has not been expanded to cover this vehicle. Thankfully, I was able to maintain contorol and was not in traffic when this occurred. I notified the dealer that the vehicle was shifting very hard during the last visit but no codes or issues were found at that time indicating an issue.

Driving the truck, a nut fell against my foot. I pulled over and looked underneath to where this Nut could have come from. I realized that the brake pedal was very loose. I did a Google search to see what break pedal Nut could have loosened and Fallen off. I identified that there was a recall for the brake pedal pivot nut on these trucks. From that, I looked up to that section and found that the nut did indeed come from that part. I called the local Chevrolet dealership and they informed me that my VIN number was not part of that recall list. It is obvious that General Motors left the numbers off of that recall for vehicles that are still being affected by that problem. I called General Motors customer service and spoke to Brandy at customer service and she was not willing to help and only told me to contact this government agency. In order to prevent fatalities of innocent lives, I am reporting this.

The vehicle has been brought to an authorized dealership for numerous service visits related to electrical system issues that ultimately affected the braking system. During one service visit, the vehicle was returned to me with multiple active dashboard warning lights illuminated related to the braking system, including Electronic Stability Control and Automatic Emergency Braking. I questioned the presence of these warning at pickup and was advised by the dealer that the vehicle was safe to drive and that the warnings would clear on their own. After driving the vehicle for a short period, I became uncomfortable continuing to operate it with brake-related warning lights still active and returned it to the dealer. Upon further diagnosis by a service technician, it was discovered that the vehicle has significant brake system defects requiring replacement of major components, including the brake control module and master cylinder. During diagnosis, the brakes locked and the parking brake would not disengage, rendering the vehicle undrivable. No collision or injury occurred. However, the vehicle was released to me with active brake system warnings and later found to have serious brake defects. Due to the safety-critical nature of the braking system and the repeated electrical and brake-related service history, I am reporting this for documentation and review.

Took it to Chevy dealer for oil cooler lines to be replaced I have been in touch with gm since my truck wasn’t under any open recalls to try to get some of the money back for the oil cooler lines since gm has had a big problem with them losing oil

I have taken my vehicle to the dealership, Preston, Hood Chevrolet, Fort Walton Beach, Florida. The problem I’m having is the avoidance system! Not getting warning nor will the vehicle stop an emergency situation where I’m going forward in a vehicle stops quickly in front of me nor will it work if a person is walking behind my vehicle or if there’s a vehicle behind my vehicle when I’m backing out of my driveway. They keep telling me everything checks out on the computer and they keep saying it’s normal and it’s only meant to possibly slow down the vehicle before a crash. They do not give me any definitive answer and they also escalated to GM response is basically the same thing. You can read all over the Internet that a lot of people have this problems. I have friends that own the same truck and it works perfectly. My truck will not. It’s very frustrating because one of the reasons why I bought a new vehicle like this was for those safety reasons. Also, when I am pulling out of a parking spot and turning the wheel, the truck accelerates by itself and goes into cruise control. Only doing a few miles per hour. And this might be because of the location of the activation of the cruise control switch. It is a lever on the steering wheel and it’s easily to engage. And I don’t understand why it would engage at such a slow speed. I’ve had several situations where a vehicle has stopped suddenly in front of me and my truck will not respond at all with a late morning shaking of the seats no alarm and no breaking luckily I was able to stop in time with my own reaction. The technicians will not work on this because the computer says it’s OK. It seems like they have technicians but not mechanics. My opinion. I spent a lot of money for this truck and I’m [XXX] although my reactions are still pretty good. I’m looking at a vehicle that will assist if I do not react. This vehicle doesn’t react and I paid for this and I am afraid when I need the avoidance system, it won’t work. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORM

On 01/16/2026, Quirk Chevrolet completed product safety recall N242482680 for the Brake Pressure Switch Connector Fire on my vehicle. Shortly after, my vehicle would come to an abrupt stop on its own while driving. This happened twice on my way home and then the third time at home at which point, it would no longer move forward or backward. The vehicle needed to be towed to the dealership that did the recall. After researching online, I discovered this is a known issue after the recall because the recall component is faulty. One source reports the cause is an improperly manufactured jumper harness which is missing protective tape or a faulty internal C-clip in the cylinder. Another source states the post-service emergency brake issues often stem from a software update meant to enhance safety or an incomplete repair of the brake pressure switch wiring harness. The update automatically engages the parking brake. I absolutely know that the catastrophic failure of my vehicle's braking system was a direct result of the recall work; however, the dealership made me pay for the repairs out of pocket until such time as GM or Chevy makes an "official" recall on the faulty recall. My safety and the safety of others was put at risk by way of my vehicle stopping abruptly on its own. The problem has been reproduced by many sources online - just do an online search "2021 Chevy 5500 emergency brake issue after brake recall completed" and see all the results that come up corroborating my personal experience. Quirks Chevrolet in Manchester, NH inspected the vehicle. No warning lamps or messages appeared on the dash. Please contact me if you want any additional information or copies of receipts, etc. My vehicle is available for inspection upon request.