2014 Kia Optima fuel system NHTSA complaints: Fuel/Propulsion System

NHTSA — Fuel/Propulsion System Problems


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
8,227 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.

2014 Kia Optima fuel system problems

fuel system problem

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2014 Kia Optima Owner Comments

problem #3

Apr 012015

Optima 4-cyl

  • 10,000 miles


The problem is sporadic but happens frequently. If I press the gas pedal to increase my speed, whether from a stopped position, or to pull into a busy roadway, or to increase my speed to pass another vehicle, the car will start to go then choke, so that no matter how hard I press the gas pedal, the RPM stay the same and the vehicle loses power and will not speed up. If Kia doesn't figure out what is causing this - because I have seen other people with different Optima vehicle years complain about this - someone is going to get killed. I have had numerous near misses because of this problem. I also see many people saying Kia is telling them this is the way the vehicle is supposed to behave - really"?? my car is currently at the dealer to hopefully have the problem diagnosed and fixed. They gave me a loaner car, which is a 2013 Kia Optima, and guess what" pulling out of the dealership in the loaner I was almost rear ended because the loaner also has this problem, but 10 times worse than my car. It happened at least 30 times between the dealer and where I work - about a 30 minute drive. Always when speed needs to be increased by way of the gears needing to upshift. Please please please someone pay attention to this - I hope Kia isn't waiting for someone to get killed before they look into this failure that is happening that their dealerships are writing off as normal function! just as I was ready to submit this complaint, my dealership called me back and surprise: "we are unable to duplicate the problem" and "no problem codes were detected." Please Kia, take notice of this problem before someone gets killed!!!

- Oak Ridge, NJ, USA

problem #2

Feb 112015

Optima 4-cyl

  • 12,000 miles
I was in a parking structure, stopped at a stop sign. I continued a few feet to my designated parking stall and when I turned the wheel the car accelerated at what felt and sounded like full throttle on it's own. The surge of the vehicle forced the car to crash into a concrete wall causing extensive damage to the vehicle and bodily injury to myself. The vehicle is only a few months old. This car has some very serious safety issues. Someone could have been killed. Now I am terrified to ever drive it again.

- Mckinney, TX, USA

problem #1

Aug 132014

Optima 4-cyl

  • 2,680 miles
When leaving a stop sign.red light or a drive way. Some times the car won't go when gas pedal is pressed.has a delay of about 2 seconds.have to floor the gas pedal to make it go. Very bad when other cars are behind me. Bought car May 30 2014. Had 5 or 6 incidents already. Dealer can't duplicate problem can't get it fixed. Suspect economy system is problem. The internet has similar complaints.

- Lake Charles, LA, USA

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