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.


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 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 Hyundai Sonata engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2012 Hyundai Sonata:

Unsubscribe any time. We don't sell/share your email.

2012 Hyundai Sonata Owner Comments

problem #1

Apr 012015

Sonata 4-cyl

  • miles


2012 Hyundai Sonata. Consumer writes in regards to manufacturers false mpg claims and vehicle acceleration issues. The consumer noticed, when the vehicle was cold, it seemed as though the vehicle could not decided if it wanted to be in electric or gas mode, as it was chugging as the consumer was trying to drive up the hill. The dealer informed the consumer, that a computer upgrade needed to be performed on the vehicle. After the computer was upgraded, the consumer experienced another failure. In October 2015, the vehicle once again stopped without any warning. The lights flashed on the dash, with a message to stop safely and check the hybrid drive.

- San Diego, CA, USA

Not what you are looking for?