2012 Chevrolet Sonic acceleration problems

Filed May 3, 2025 · Acceleration, Engine · PA

Unknown

Filed Jun 12, 2023 · Acceleration, Engine · 114,000 miles · WV

The contact owns a 2012 Chevrolet Sonic. The contact stated that vehicle failed to accelerate while depressing the accelerator pedal. The contact stated that the check engine and ABS warning lights were illuminated. The vehicle was not diagnosed or repaired. Neither the dealer nor the manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 114,000.

Filed Apr 26, 2022 · Acceleration, Transmission · IL

I have a 2012 Chevy Sonic giving a P2138 error code. I have replaced the Throttle Position Sensor and the Accelerator Pedal Sensor and the problem is not going away. I have spent over $700 on this repair and they cannot fix it. It is a known problem with this vehicle but GM is there is no recall for this issue. I wish something could be done. The acceleration loses power and drops to is unable to go above 45 MPH.

Filed Nov 9, 2021 · Acceleration, Transmission · MI

Driving 2012 Chevrolet Sonic approximately 50mph, car down shifted on its own to 20mph nearly getting rear ended. Tried driving in auto transmission and manual mode, transmission stuck in 3rd gear. Had to drive 11 miles on busy road at 20mph, speed limit is 50mph. Car is at dealer, has turbine shaft break and wave plate broken. Because car has 1-2012 on sticker, no warranty is available. My option is $4800 to replace transmission or junk it. Car only has 93 thousand miles and was always mainted very well, lucky there was no injuries.

Filed Nov 12, 2019 · Acceleration, Electrical · 74,000 miles · AZ

My car keeps shutting completely off even while driving, the radio come on and off by itself and no one can tell me why, this is very dangerous I be driving with my children in the vehicle and the car shuts off while driving in traffic

Filed Mar 6, 2019 · Acceleration, Engine · 77,300 miles · AL

The car has under 100k miles and seems to be having transmission problems. Everything has been well maintaintanced. I recently purchased the car being the second owner. The car has issues getting up to speed causing people to tailgate me or speed up and go around me. You can also feel/hear the transmission going through the gears. The takeoff is absolutely terrible. You can tell the engine is working hard. The rpms don't go above the danger zone but they do rise when switching through the gears. It's very likely to cause a accident especially on the interstate. The car cannot get out of it's own way.

Filed Feb 3, 2017 · Acceleration · 50,872 miles · NY · crash

Car accelerated on it's own in drive and reverse causing my husband to hit a fence in drive and hitting a tree in reverse, he was driving on a city street, no one seek any medical treatment, called the police when he got home and made a report but do not have it on hand.

Filed Nov 10, 2016 · Acceleration, Brakes · 47,000 miles · IL

Tl* the contact owns a 2012 chevrolet sonic. While driving 60 MPH, the vehicle accelerated independently without warning. The driver depressed the brake pedal, but the vehicle failed to decelerate. In addition, the contact stated that the vehicle started to lose power and the driver was able to coast to the side of the road. The vehicle was taken to a dealer for diagnostic testing. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 47,000.

Filed Nov 16, 2015 · Acceleration, Transmission · 110,000 miles · MO

Tl* the contact owns a 2012 chevrolet sonic. While driving approximately 20 MPH and depressing the accelerator pedal, the vehicle failed to respond without warning. The contact pulled over and powered the vehicle off and back on; however, the failure persisted. The contact continued to depress the accelerator pedal. The vehicle eventually shifted into the next gear. The failure recurred on several occasions. The vehicle was taken to the dealer and was not diagnosed. The contact was informed that the VIN was not included in the federal safety agency campaign number: 14v315000 (power train). The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 110,000.

Filed Oct 20, 2015 · Acceleration, Fuel system · 40,021 miles · OH

For 2 months my check emissions light was coming on and going off. According to my owners manual the gas cap or air filter need fixing. I went to autozone to get a free diagnostics reading. At the end of august my car started to hesitate , won't accelerate at take off. Then started heavy jerking at take off and when sitting still. I bought some liquid and changed air filter, same results. I called chevy dealer to have car checked under my powertrain and my emissions warranty. I have been trying to get help so I could get my car checked next friday on the 23rd. To have them look at my car. But on the 16th of october I'm leaving work I backed out of stall and pulled forward car was dragging roughly. I was waiting to pull out in traffic when car started jutting forward. I press on the gas went forward about 5 to 8 feet and then nothing. I was stuck inmid traffic. The reverse worked so I was able to roll out harms way.