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.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
24,725 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 Hybrid electrical problems

electrical problem

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2012 Kia Optima Hybrid Owner Comments

problem #2

May 062015

Optima Hybrid

  • 35,000 miles


Our car is currently at the dealer for the 4th time for the same problem. Last spring the engine warning light came on with the message "hybrid system warning! safely stop and do not drive". the dealer said it was the battery (regular, not hybrid) so we had that replaced (out of warranty - we paid for that). This past August, the warning message appeared again - the dealer said there had been a technical bulletin, and they performed an update (covered by warranty). We had the car back for a few days and the message appeared again, as well as the following message "check charging system". the dealer replaced a wire (under warranty). A couple of weeks ago, the check engine light came on and the hybrid system warning appeared again. This time (4th time) the dealer said that the traction motor needed replacing and that we needed a new transmission (also under warranty). We believe that there is an inherent problem with this car.

- Long Beach, NY, USA

problem #1

Nov 042013

Optima Hybrid 4-cyl

  • 14,450 miles
This car severely hesitates/stalls after coming to a stop at intersections (red lights, stop signs, yield signs, and etc). Car hesitates/stalls for 2-3 seconds before accelerating while at a dead stop. This has causes several near accidents and scares to my family, friends, and myself. This morning, I pushed the gas pedal to the floor and the car did not accelerate/respond until 2-3 seconds later. This is serious and dangerous problem, while pulling out into traffic incoming cars can close the safety gap quickly in 2-3 seconds. Cold weather causes the car to hesitate/stall more often than warmer weather. I urge the federal government to step in and force Kia to find solution to this problem before this issue cause a fatality. Fuel economy is another issue in this car (hybrid), I typically donżżT get the estimated 35 mpg/city that the dealership sold me on, it is usually 28-30 mpg/city.

- Fayetteville , NC, USA

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