2008 Chevrolet Cobalt acceleration problems

Filed Oct 22, 2020 · Acceleration · 132,000 miles · MT

Driving up hill on freeway. Gas petal stuck to floor increasing speed. Could only stop by pressing hard( brake petal almost all the way down). Tried to duplicate scenario again but couldn't. Temperature was cold <30f outside.

Filed Nov 26, 2018 · Acceleration, Transmission · 35,000 miles · NE

When driving at a constant rate, with constant accelerator pressure, between approximately 25 to 50 MPH, the rpms jump/fluctuate causing the car to lurch and hesitate. This can be a safety hazard, particularly in icy conditions. The only way to avoid the hesitation is to actively accelerate or decelerate. There are numerous owners that have posted an identical issue on message boards and have stated that their vehicles had similar issues that were remedied by similar repair processes and that chevrolet has altered the process used to make replacement parts as the initial parts were defective. In addition to being a safety hazard, it is also an excessive and costly burden on vehicle owners. My vehicle has only 40,000 miles on it and has been doing this since under 35,000 miles. It cannot be documented without a video. The rpms jumping is a constant and unrelenting issue when driving at a constant rate of speed between approximately 25-50 MPH.

Filed Mar 9, 2018 · Acceleration · 169,777 miles · KY

Dash message says powersteering and speedomoter stopped working

Filed Jun 1, 2017 · Acceleration, Airbags · 134,000 miles · OH · crash · 1 injury

Tl* the contact owns a 2008 chevrolet cobalt. While driving 40 MPH, the vehicle accelerated rapidly without warning and crashed into a concrete guardrail three times. The air bags deployed partially. A police report was filed. The contact stated that she could not move and was taken to the emergency room to receive medical attention. The vehicle was not destroyed. The local chevrolet dealer was made aware of the crash. The manufacturer was made aware of the crash and performed a diagnostic test which found no failure. The failure mileage was 134,000. Updated 07/18/17*lj

Filed Sep 13, 2016 · Acceleration, Driver assistance · 97,000 miles · WA

While driving at low speeds (30mph) the power steering light came on. The car stalled, the wheel tightened up, the symbol with a locked car turned on. The speedometer started moving up and down crazyly. Check engine light came on as well. I moved to the side because it was really difficult to control and as I did the car just kept stalling worse and worse. Once I pulled over I turned off the car. I wasnt as freaked out as the first time this occurred since this has happened numerous of times and I've taken it to 3 different mechanics who don't know how to fix it at all. It's very scary it also happened while going at 60mph and all I do is pull over and then call the tow or drive it at low speeds home. I'm sure I fall in the category for a recall but have never gotten a recall letter. Its extremely dangerous and scary to drive with fear of this happening at anytime specially when you carry passengers. Alot of other people have the same problem as me and it's annoying hopefully gm fixes this problem for us all.

Filed Jan 17, 2016 · Acceleration, Driver assistance · 132,000 miles · ME

Some times the car will not start, reduced engine power, can not go long distance on turn pike, car will stall out. Fuel/propulsion system, has a problem also, but will not let me click on box above.

Filed Jan 4, 2016 · Acceleration · 100,000 miles · PA

Tl* the contact owns a 2008 chevrolet cobalt. The contact stated that while driving at approximately 25 MPH, the accelerator pedal became stuck to the floorboard. The vehicle was taken to an independent mechanic who drove the vehicle and was able to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 100,000.

Filed Dec 10, 2015 · Acceleration, Brakes · 96,025 miles · MD

Tl* the contact owns a 2008 chevrolet cobalt. While driving approximately 25 MPH, the accelerator pedal became stuck when depressed. The contact depressed the brake pedal, but the vehicle failed to stop. In order to stop the vehicle, the brake pedal and the emergency brake needed to be engaged. The vehicle was towed to a local mechanic who did not diagnose the vehicle. The manufacturer was not notified of the failure. The failure mileage was approximately 96,025.

Filed Nov 13, 2015 · Acceleration, Brakes · 96,000 miles · TN

Tl* the contact owns a 2008 chevrolet cobalt. The contact stated that while driving at 30 MPH, the vehicle decelerated violently. In addition, the contact had to apply force to the accelerator pedal in order to increase in speed. In addition, the low tire pressure warning light illuminated. The failure recurred on numerous occasions. The vehicle was taken to a dealer but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 96,000. Updated 1/12/16

Filed Oct 1, 2015 · Acceleration · 175,000 miles · IN

While driving the car, the service traction control light, the service engine light and the eng pwr reduced notification came on. When this happened, there was a thump sound, the car hesitated and lost acceleration for a couple seconds and the car had obvious performance issues after that. At the time that this occurred, I was merging into moving traffic and was almost hit by the car behind me, since the car hesitated for a moment, reducing my merging speed at a time that I needed to be accelerating. This could have been a very bad situation!