Acceleration complaints by model year
| Year | Complaints | Share of year's complaints | Typical mileage |
|---|---|---|---|
| 2025 | 1 | 3% | — |
| 2024 | 2 | 4% | 48,000 miles |
| 2023 | 1 | 2% | 9,000 miles |
| 2022 | 1 | 2% | — |
| 2021 | 1 | 1% | — |
| 2020 | 4 | 2% | 75,000 miles |
| 2019 | 7 | 4% | 27,000 miles |
| 2005 | 1 | 7% | 75,000 miles |
| 2004 | 2 | 4% | 3,000 miles |
| 2003 | 2 | 3% | — |
| 2002 | 4 | 2% | 0 miles |
| 2001 | 10 | 3% | 212,000 miles |
| 2000 | 26 | 4% | 60,000 miles |
| 1999 | 13 | 3% | 111,000 miles |
| 1998 | 33 | 5% | 115,000 miles |
| 1997 | 47 | 6% | 82,000 miles |
| 1996 | 28 | 2% | 150,000 miles |
| 1995 | 44 | 4% | 70,000 miles |
Which parts fail
Components named in complaints (accelerator pedal, throttle, sudden acceleration, cruise control).
Mileage when the problem started
What owners report
The contact owns a 2020 Chevrolet Blazer. The contact stated that the front passenger's seat belt buckle was inoperable. The contact buckle was jammed and failed to properly secure the seat belt in place. The contact stated that while driving and stopped at a red light, the traffic light turned green and the accelerator pedal was depressed; however, the vehicle surged forward unexpectedly while rolling. Additionally, the contact stated that the infotainment system intermittently displayed a blank or distorted screen, became frozen and was unresponsive to the touch commands. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failures. The approximate failure mileage was 75,000.
The service advisor at the Chevrolet dealership denied a repair to my abs control module because it was a "known issue". He told my wife and I our car is unsafe to drive And still wants to give it back to us. Other Gm vehicles have recalls open for the same issue one needs to be open for this. Abs lights and multiple others no brakes or random braking.
I bought a 2019 Chevy Blazer in February 2023 . The vehicle has issues when I fill it with gas. As soon as I gas up to full it starts jerking immediately afterwards. It makes loud popping sounds. The engine dies completely. It starts to tremble and will not go. When I try to turn in back on , the starter works very hard before it will turn back on. It does turn back on eventually but I have to pull over to the side and accelerate the engine until it finally stays on. I drives that way turning off at lights and stops. After about 10-15 minutes of this , it finally stays on long enough to drive another 20 minutes or so to get home. After it rests for a few hours, it goes like normal. This is a big safety concern for me since these episodes happen every week when I fill up my car with gas. …
engine - code p0128 engine coolant thermostat. This is a safety issue because it reduces the power steering on vehicle, auto stop stopped working, unable to remote start vehicle. Issue has been confirmed at an independent service center (I work at an auto collision center). Warning lamp - check engine light. Message on dash - power steering reduced. Appears everything came on at the same time. Per dealership items most likely needing replacement are engine coolant thermostat and engine coolant temperature sensor but ecm module could also need replacement. Advised common problem but no recall power train - transmission shutters when accelerating. Safety is at risk because vehicle will not accelerate or accelerate too quickly. Called to dealership advise flush transmission fluid twice to fix issue. We have done this 4 times in the past year. …
Not long after I purchased my 2002 Blazer, I started noticing that at random times the motor would start racing when I started the engine. It ran very loud for a period of time and then would finally slow down. While driving the vehicle this would also happen. The rpms rapidly increase when accelerating, and it would make a loud roaring noise, but the vehicle doesn't go any faster. I took it in to the shop and was told this was normal, that it was the clutch fan. It is extremely hard to believe that this is normal for a new vehicle. I have had the Blazer since April of 2002 and it continues to do this and has sometimes put me in very unsafe positions. This problem seems to me to be more of a transmission problem than a fan. I have also had problems with the fuel gauge. It will show empty when it has plenty of gas. …
During the test drive and subsequent to that, I experienced what I call the fat foot syndrome. That is to say, my foot engaged both the accelerator and brake pedal at the same time. I was stopped and when I attempted to procede, my foot engaged both pedals at the same time. This could be confusing to drivers behind me and result in a collision. In addition, this condition could result in premature brake lining wear.
The gas pedal hangs up on the floor carpet (the wear strip integrated into the carpet that is under the gas pedal and wraps up along the side of the transmission tunnel) when the gas pedal is pressed all the way to the floor. The shaft that the gas pedal is attached to has part of it sticking out past the gas pedal and has a sharp edge that snags the edge of the wear strip. The carpet is not worn, it is in great shape, and is only getting damaged when the gas pedal snags the carpet wear strip. It has happened about a dozen times in the past 5 years. I contacted Chevrolet dealer and they never got back to me five years ago. In April 2010, it happened on a city street when I hit the gas to take evasive action to get away from another car that almost hit me in the side and the gas pedal stuck and I almost hit another car and a building. …
On three different occasions my 2001 Chevrolet Blazer has nearly caused me to have a terrible accident. Twice while just driving along at a normal rate, the motor sped up to probably 70 or 80 MPH creating a very dangerous situation. It was very lucky that there was nothing in front of me. This has been an ongoing defect with this vehicle. The service manager states that this a very dangerous defect in my car. I am afraid to drive it as each time they say it is repaired, it has happened once again. This is a very serious situation which could easily lead to a dreadful accident and loss of life. It is my opinion that general motors should offer me a new vehicle in place of the very dangerous one I now own. I could not, in good faith, consider selling it knowing how dangerous it is. Fortunately there has not been an accident with it, but I feel that it could easily happen. …
Frequently asked questions
Which Chevrolet Blazer years have acceleration problems?
By NHTSA complaints, the 1997 (47), 1995 (44), 1998 (33), 1996 (28) and 2000 (26) model years. Acceleration complaints make up 6% of all complaints for the 1997.
Is there a recall for Chevrolet Blazer acceleration problems?
No. NHTSA lists no speed control & acceleration recall for any Chevrolet Blazer model year. A widespread problem may still be covered by an extended warranty or a manufacturer service bulletin, so ask a dealer.
At what mileage do Chevrolet Blazer acceleration problems start?
Across all years, half of the complaints with a recorded mileage happened before about 91,000 miles; 29% happened before 50,000 miles.
What part fails most often?
Owners most often name the accelerator pedal (53 mentions), followed by the linkages (14).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.