fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
13,635 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.

2014 Chevrolet Sonic brakes problems

brakes problem

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2014 Chevrolet Sonic Owner Comments

problem #4

Jul 222016


  • 50,000 miles


List of power brake boost under several conditions. 1. when engine is warm, after shift into reverse, list of power brake boost 2. while accelerator was depressed, and at the same time applied brake, results in lost of vacuum boost in both conditions, car is in motion and unable to stop without the use of extra brake effort, comprising stopping distance and safety, on several occasions vehicle will not stop when applying brake, due to extreme stiffness of the pedal

- Manchester, MO, USA

problem #3

Nov 112014


  • 240 miles
First noticed this happening about 1 month after the purchase of this car. When stopped at a stop sign or red light, with my foot on the brake the car feels like it wants to lunge forward or take off. Or, when going from my foot on the brake to the gas the car wants to lunge forward once I press on the gas just a little bit.

- Washington, DC, USA

problem #2

Nov 012014


  • 100 miles
Has happened off & on since I bought car October 2014. While at a complete stop car will rock back and forth as if the brake pedal isn't pushed down all the way & the car isn't sure if it is to be driving forward slightly or stopped. Even with me pushing the brake pedal all the way down to floor, car still rocks back & forth. If at stop light while doing this issue & light turns green for me to drive ahead car will not move till done having its rocking back & forth fit. It only lasts 15-20 seconds but can not drive forward while car is having fit. Is this the computer/stabilititrack not communicating properly?

- Skiatook , OK, USA

problem #1

Mar 192014

Sonic 4-cyl

  • Automatic transmission
  • 4,200 miles
The contact owns a 2014 Chevrolet Sonic. While driving at low speeds in inclement weather, the brake pedal was depressed but the vehicle failed to stop. The contact was able to avoid a crash. In addition, the while veering to the right, the vehicle unintentionally veered to the left without warning. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failures. The failure mileage was 300. Updated 03/24/15 updated 12/09/15.

- Syracuse, NY, USA

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