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.


fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
9,510 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.

2011 Kia Optima Hybrid engine problems

engine problem

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2011 Kia Optima Hybrid Owner Comments

problem #2

Sep 012011

Optima Hybrid 4-cyl

  • Automatic transmission
  • 21 miles


The contact owns a 2011 Kia Optima hybrid. The contact stated that while accelerating from a complete stop, the vehicle hesitated and suddenly accelerated. The dealer could not diagnose the cause of the failure. The failure occurred at various low speeds. The manufacturer was not notified. The failure mileage was 21. Updated 8/11/14

- Payson, AZ, USA

problem #1

Mar 042013

Optima Hybrid 4-cyl

  • 19,000 miles
I was driving on the freeway at roughly 60-70mph when the car suddenly began decelerating and not responding when the acceleration was pressed. This has happened 3 times since I have been on the roads. Kia is unable to find error codes or diagnose the issue even after providing them with video evidence.there have been multiple "computer glitches" but this has been the most severe.

- El Segundo, CA, USA

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