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?


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
35,000 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 brakes problems

brakes problem

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2012 Chevrolet Sonic Owner Comments

problem #2

Mar 012016


  • 7,000 miles


The contact owns a 2012 Chevrolet Sonic. The contact stated that while driving at various speeds, the vehicle would begin to shake and make a loud pop noise from underneath the front-end. The vehicle would than stall causing the contact to have the vehicle towed. The traction warning light was illuminated. The contact took the vehicle to the dealer where it was diagnosed that the air duct was fractured and needed to be replaced however, the failure occurred again. The contact returned the vehicle to the dealer and replaced the vehicle's battery, fuel pumps, and the fuel injectors. The failure recurred. The manufacturer was not made aware of the failure. The approximate failure mileage was 7,000.

- Balley, AL, USA

problem #1

Jun 062015


  • 63,000 miles
The contact owns a 2012 Chevrolet Sonic. While driving 55 mph, the front end of the vehicle began to jerk and the traction control and check engine lights appeared. The vehicle stalled and was coasted over to the side of the road. The dealer diagnosed that the fuel module failed. The vehicle was repaired, but the failure persisted. The manufacturer was aware of the issue. The failure mileage was 63,000.

- Olympia, WA, USA

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