Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety. Notes: The 2012 Chevrolet Sonic is fairly new & is already showing an early trend of transmission problems.

Owners report hesitation when shifting & grinding/hard shifting into gears. Some dealers are calling the condition "normal". Another owner reported his dealership replaced the transmission under warranty, but the new transmission had the same exact grinding problem. Design defect?


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
867 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 Chevrolet Sonic engine problems

engine problem

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2012 Chevrolet Sonic Owner Comments

problem #3

Dec 012011


  • miles


When I am driving on city streets and am behind a car that is turning I have to slow down. When I give it gas at around 2K RPM. The car has some hesitation like it cant find a gear to be in. It has done it seance about 100 miles. Has 7000 miles on it now. Was told it was the transmission trying to find its shift points as you break it in at 1000 miles.(berger Chevy) also when in garage and start car it sounds fine. But once I put it in rev. I hear lost lot pings coming from the engine area. Started after deer crash. Took to berger Chevy where car was bought. They found nothing but just body damage. Hood, front end, and passage side all replace. With 600 miles on car.

- Kentwood, MI, USA

problem #2

Mar 182012


  • 2,500 miles
First problem was the check engine light came on. Called onstar and they said it had something to do with emission. Called dealer, they checked it out and said it was a faulty evap solenoid. Dealer replaced solenoid on 3-22-2012. While there, they also told me there was a recall on the drivers side airbag. I never received any notice about a recall. Said they fixed that too. Problem # 2- today 4-15, 2012, when I apply the brakes, its making what seems like a rubbing sound !! called onstar again, but they couldn't tell me anything. I will be taking this piece of crap car back to the dealers !! this car is only 4 months old with 2800 miles on it. !!

- Paradise, PA, USA

problem #1

Feb 042012


  • 100 miles
I turned on windshield wipers & the engine died. This was the first time it had rained after I bought the car & really did not at this time associate the wipers & the engine dying until later that same day when contacted a friend of mine to drive the car. The dealer contacted GM about the problem but they don't seem to be very concerned about the problem. The dealer replaced the wiper motor but that did not solve the problem. It is a long story & I'm very concerned for the safety of myself & others. It died the other day in traffic when it started to rain & I turned on the wipers and almost was hit by a truck. Please contact me, it would be easier for him to explain in person about the problem.

- Buchanan, TN, USA

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