2007 Chevrolet Cobalt acceleration problems

Filed Jul 21, 2018 · Acceleration, Electrical · 100,000 miles · TX

My car dies unexpectedly when coming to a full stop at traffic lights and stop signs.

Filed May 7, 2018 · Acceleration, Transmission · 110,386 miles · TX

Tl* the contact owns a 2007 chevrolet cobalt. While driving unknown speeds, the gear shifter failed to move. There were no warning indicators illuminated. The local dealer was not contacted. The manufacturer was notified and did not assist. The vehicle was not diagnosed or repaired. The failure mileage was 110,386.

Filed Mar 3, 2017 · Acceleration, Brakes · 145,000 miles · OH

Tl* the contact owns a 2000 chevrolet cobalt. While driving 75 MPH, the vehicle accelerated on its own. When the brakes were applied, the vehicle did no slow down. The vehicle had to be placed in neutral to slow the vehicle to a safe speed. The vehicle was taken to an independent dealer, but was not diagnosed or repaired. The failure mileage was 145,000.

Filed Apr 28, 2016 · Acceleration, Electrical · 43,703 miles · OR

Tl* the contact owns a 2007 chevrolet cobalt. After having the vehicle repaired for the ignition key to be removed from the starter, the engine light illuminated and the steering was in dic mode. Also, the power steering failed. When depressing the accelerator pedal, the vehicle failed to accelerate accordingly. The contact took the vehicle to the dealer who stated that the vehicle was repaired with an aftermarket part that needed to be replaced. The part was replaced, but the failure recurred. The failure recurred. The manufacturer was made aware of the failure and provided no resolution. The approximate failure mileage was 43,703.

Filed Sep 14, 2015 · Acceleration · 78,000 miles · OR

While driving at highway speeds using cruise control the vehicle suddenly decelerated. This abrupt slowing almost caused an accident because I along with the other drivers behind me had no warning of such a sudden reduction of speed. A "reduced engine power" light came on, the vehicle would not accelerate to a safe highway speed, and it no longer exhibited the power necessary to climb a hill. If this had happened on a freeway or on a mountain pass it could have been extremely dangerous or deadly. The dealership diagnosed a faulty throttle body which was subsequently replaced. This however didn't rectify the situation and the condition still randomly happens. We no longer feel safe driving this vehicle.

Filed Jul 28, 2015 · Acceleration, Brakes · GA

Replaced all of the following components since purchase: both front lower control arms due to bushing failures; both front shock and strut assemblies due to shock failures/leaks; both sway bar links due to failed components; both front sway bar bushings due to dry-rot; both front rotors due to failed/warped components caused by defective brake calipers; harmonic balancer due to defective/weak component; both rear shocks due to failures/leaks. Still need to replace rear coil springs due to weakness, all wheel hub bearings due to unstable driving/steering and the vehicle speed sensor causing high idle and erratic idling after warm-up.

Filed Apr 14, 2015 · Acceleration, Electrical · 50,000 miles · OH

The vehicle has a built in anti theft system . This system is controlled by a computer . As well as an etching in the key that is recognized by the ignition . This has been an on going problem for us where the anti theft system will engage while you are driving . When this happens you lose your instrumentation, power steering , your transmission slips and your engine sputters . This has happened to us at high speed in the freeway , slow speed on city streets and everything in between . The real issue is that it is so sporadic that our local gm dealer is unable to assess the issue .

Filed Mar 17, 2015 · Acceleration, Engine · 140,000 miles · FL

Tl* the contact owns a 2007 chevrolet cobalt. While driving at approximately 70 MPH, the accelerator pedal was depressed and the speedometer remained on 0 MPH. The failure recurred numerous times. The vehicle was taken to numerous dealers, who confirmed that the transmission control module needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was made aware of the failure. The failure mileage was 140,000.

Filed Dec 16, 2014 · Acceleration · 105,000 miles · KS

At 8:30am on dec 15th with the temp outside of 40 deg. I turned left onto an acceleration ramp and put the accelerator almost all the way down. I let up off the accelerator to yield to another car on the ramp. The vehicle continued to accelerate and would not slow upon braking hard. I stomped the pedal twice as if it were stuck. This had no impact upon my uncontrolled runaway acceleration. I shut the key off and luckily the other car yielded to me upon hearing my motor rev up. I was able to pull over to the side of the road and stop safely. I restarted the car and did not have any further difficult making to more 10 mile round trips. The ignition key has been changed per recall and the power steering has been done also on recall. However the power steering did fail about 1 month ago despite the fact that it also had been recalled. At that time I replaced the battery because it was almost 9 years old. No further power steering problems. I have also had difficulty with the floor shift sticking after parking..

Filed Nov 11, 2014 · Acceleration, Steering · 127,000 miles · WA

I was driving in town and the power steering warning flashed across the dashboard reader. I assumed I would need to go get some power steering fluid to fix the problem. The next day I was descending rapidly down a very steep curving hill when the power steering went out completely and I could not control the vehicle! I narrowly avoided a collision with another car and some trees! Since then I have done some research an found innumerable complaints about this very issue across several model years of the cobalt. It is well documented that this is a serious and chronic issue and gm has largely ignored the safety of those who keep them in business!! What a bad business model! We are a one car and one income family and now I simply cannot let my teenagers drive at all because I don't have $1000.00 to fix my car right before the holidays! Thanks gm!!