hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
55,240 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.

2006 Kia Optima fuel system problems

fuel system problem

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2006 Kia Optima Owner Comments

problem #4

Jun 102006


  • 96,000 miles


I had a recall on airbags took it twice to dealer and the light is still on will not go off. Also when I stop and get gas and after I finish pump on the inside it smell so loud just like I waste it on me I have took it to let them check it out cannot find out where it come from

- Waterford, MS, USA

problem #3

Jun 252014

Optima 6-cyl

  • miles
I had a recall on my airbag had took the car twice to dealership to be fix each time they told me it was fix but the airbag light came right back on and still on. They also need to go back and do a fuel investigate on 2006 model too.

- Waterford, MS, USA

problem #2

Oct 252014

Optima 6-cyl

  • 66,961 miles
I went to go shopping, and at the second stop sign in my neighborhood I stopped. When I tried to drive the gas pedal when pushed would not let the engine go fast enough to go above 20 mph, then I noticed that the check engine light was on. I pulled over and checked my engine and its fluids, could not find any thing wrong. So I started the car up again, and everything seemed to work fine. So I drove off and the car worked like it should have. I then went to a auto parts store, and they used their meter to check engine codes. The code was P2135, code definition: Throttle pedal/position sensor 'A/B' voltage correlation.

- Callaway, FL, USA

problem #1

Sep 132012

Optima 6-cyl

  • 58,000 miles
My vehicle keeps accelerating and slowing down randomly between gears. Can accelerate on. Its own and slow down when more pressure is applied to gas pedal. The check engine light was not on for a month and now it has appeared. This can cause a serious accident.if a less capable person was driving. Many other Kia owners of this.model report. The accelerator pedal position sensor has been the issue for countless owners of this model and have been replaced by the dealer. I have had a diagnostic test done and. It showed the same codes pointing to the accelerator.... my dealer stated that it is not covered under warranty. It is an $800 part plus labor. I think that if this problem persists in many of these models and the problem can cause injury or death, then it should. Be a recalled item. Thank you

- Branford , CT, USA

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