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:
1 / 4
Injuries / Deaths:
0 / 0
Average Mileage:
59,171 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 Kia Optima engine problems

engine problem

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2012 Kia Optima Owner Comments (Page 3 of 3)

« Read the previous 20 complaints

problem #3

Mar 052013

Optima 4-cyl

  • 3,000 miles


I was driving in the left hand lane of a major thoroughfare when my Kia just lost power. I was able to pull over to a side street and called my dealer. They recommended turning the motor off and then back on, which did fix the problem and it has not recurred, but it was very frightening when it happened.

- Farmington Hills, MI, USA

problem #2

Aug 082012


  • 13,800 miles
Was sitting at light and went to take off car felt like it didn't want to shift into gear and had a loud rough grinding noise, all lights on the dashboard came one. Brake light, check engine light, coolant, etc and none of the gauges were working. I stopped at the store and went to leave the car would start up but wouldn't go into gear, it was stuck in park. I had to get it towed to the dealership to have it looked at. I had just had this same problem 1 week ago where all the lights were on and the gauges weren't working and the dealership had supposedly replaced the fuse panel box but that apparently didn't fix the problem. I think that it's a computer or engine issue.

- Mcdonough, GA, USA

problem #1

Jun 122012


  • 970 miles
The contact owns a 2012 Kia Optima hybrid. While driving approximately 10 mph the contact crashed into a curb, causing the front and rear driver side tires to deflate. The vehicle suddenly stalled. The check engine and actuator warning lights illuminated on the instrument panel. The vehicle was towed to the dealer for diagnostic testing however, the technician was unable to diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 970.

- Sacramento, CA, USA

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