As I was driving on the interstate 3 vehicles passed waving frantically before speeding by. I noticed a reflective orange flicker along the base each vehicle. This was followed up by a loud knocking sound before I lost all accelerating power but retained RPM revs as I pressed the pedal. I allowed the momentum to get me as far up the exit ramp as possible prior to pulling over onto the grass. I placed the car in park and turned it off to be met with an instant roll of smoke up the front windshield, out of the front grill, and from the passenger side tire area. I exited the vehicle to the sound of liquid hitting a hot surface and hissing. I stepped away from the vehicle and looked underneath to be met with rolls of fire dripping to the ground from beneath the engine and along the bottom center of the undercarriage of the car. I immediately cleared the area and my vehicle was complete engulfed in flames in less than 4 minutes. No sensors or alarms notified me of any type of malfunction.

- Vienna, GA, USA

Driving the vehicle down the feeder road of the beltway going about 40 to 45 miles per hour with no warning lights displayed or anything wrong and running normally then out of blue the engines sputters shudders and dies. This vehicle was a change the oil every 3,000 mile vehicle. I was fortunate to have an apartment driveway to coast into. Had vehicle towed to the shop I've used for 15 years and got the call the engine had seized up!

- Channelview, TX, USA

While I was driving the lights on my dashboard came on and the car began to lose power/speed and then the car stopped and I was unable to restart the engine and some minor smoke and weird smell

- Buffalo, NY, USA

"half" of the engine was replaced in July 2019. Now burns oil like crazy. On October 29th 2019 while driving at about 40 mph the entire electrical system shut off leaving me with no power steering. I was able to get off the road safely and call for a tow. I am second owner so warranty is out by about 2,600 miles. Dealer had I for a week at one point they said it was fixed when they were pulling it around front for me it stopped.

- Roseto, PA, USA

While driving on the highway, had to slow down for a vehicle in front of me. After this I tried to accelerate the vehicle, it was not responding and all the dashboard lights came on. Now the vehicle started slowing down and luckily it lasted until the exit and I had to stop on the ramp and get my vehicle towed to the nearby mechanic.

- Clarendon Hills, IL, USA

My engine shut off while driving down a state highway, going about 70. I was able to roll down to an exit and park on the side of the exit. I had to have it towed back home. I had both my battery and alternator tested and a diagnostic test ran and nothing came back wrong. Oil is regularly changed and upkept.

- Baytown, TX, USA

After several trips to my dealership about engine problems, from engine smoke, loss of power, engine knocking, chugging when I'm driving as if it were going to stall. They turned me down so I've had no other option than to deal with it. Now my car is burning oil, about a quart a week. It constantly smells of burning oil and the chugging when driving the car has gotten way worse to where it feels like my car is about to completely stall and shut off. I could drive it 5 minutes or for an hour and it acts the same. I do not feel safe even driving this car anymore. Please do something about this.

- Canfield, OH, USA

I have a 2015 Kia Optima purchased in October 2017 with 34K miles approx. I am constantly putting oil in my car and it seems to evaporate in 2-3 days. There is no leak and we have no idea why the car is consuming so much oil. Lately the car has been knocking and when accelerating to merge onto highway, the vehicle starts to sputter and begins to stall. I do not feel safe in this vehicle with my children and no longer use this vehicle on a daily basis. After doing some research, I find that this year vehicle has the most overall consumer complaints and there still has yet to be a recall on the engine" I do not understand why Kia skipped this year?? let alone blame consumers that it's their fault for not following the maintenance schedule, yet when told the schedule has been followed, will find some other lame excuse so the manufacturer is not at fault. What is it going to take to have this engine recalled" we as consumers, myself, a single hard working parent, do not have the means to buy another vehicle just because Kia says it's not their fault. This problem started beginning of April 2019, my vehicle has 52K.

- Whittier, CA, USA

When driving down the highway after tappin my breaks to slow down, when we went to accelerate to the speed again my car started flashing the check engine light and wouldn't go over 2000 rpms. Now in a limp mode. Got the vehicle home and sure enough there is metal in my engine.

- Casa Grande, AZ, USA

The contact owns a 2015 Kia Optima. The vehicle lost motive power and stalled while driving the contact was unable to restart the vehicle the vehicle had to be towed due to engine failure the contact stated that while driving at approximately 55 mph, without warning the vehicle stalled. The contact was unable to restart the vehicle. The vehicle was towed to the contact's place of employment. The vehicle was not taken to be diagnosed nor repaired. Car pros Kia huntington beach, 18835 beach blvd, huntington beach, ca 92648, (714) 274-4632, was contacted and informed of the failure. The manufacturer was not contacted or made aware of the failure. The approximate failure mileage was 75000.

- Los Angeles, CA, USA

Burning oil, engine went into limp mode in traffic, car won't run

- Jasper, GA, USA

I was driving on the highway when my engine completely failed. There was no warning or indication that a complete failure was going to occur. I had no propulsion and had to coast to the shoulder of the highway to avoid other vehicles. I owned the vehicle as the only owner (purchased vehicle brand new) for only three years when failure occurred. No one expects their vehicle to fail in a three year time period from date of purchase. The mileage at the time of failure was around 180,000 and past the warrenty. I drive for uber and purchased the vehicle to drive for uber. A new vehicle failing in a three year time span (from time of purchase) because the engine completely failed is unreasonable. Kia issued a software upgrade on my vehicle after my engine failed that addresses the exact type of failure that occurred to my vehicle (indicating that Kia was aware that there were problems with their product.

- Berkeley, CA, USA

Nearing 60,000 miles, the car started to make a weird engine noise. The Kia dealership found that the connecting rod was bad and the engine needed replaced. This issue is very well know and widespread. The Kia dealership informed me that the engine could catch fire, should the engine blow. The dealership felt that it was a manufacture issue but Kia Corp. Declined to replace the engine, which is the only option available to repair the issue. The reason given was that the oil was not at the recommend level. I had the oil changed last summer and there was no indication that the oil was low; no service light or oil level light. To avoid putting my 6yr. Old at risk, I had to choose to pay $5500 to have the engine replaced. This is a large amount of money that effects my child's day-to-day. I have also come to learn that the engine installed is re-manufactured and only has a 12-month warranty. Despite Kia's reasoning, this issue seems to be far too common for Hyundai/Kia owners, plus they have already issued a recall for older models with the same engine. At the very least, the re-manufactured engines should carry a longer warranty.

- Lowellville, OH, USA

While driving car shut off. Started smoking and now will not start

- Jacksonville Beach, FL, USA

The contact owns a 2015 Kia Optima. While driving 40 mph, the vehicle decelerated without warning and made an abnormal knocking noise. The vehicle was towed to university Kia (5105 durham-chapel hill blvd, durham, nc 27707) where it was diagnosed that the engine failed due to metal shavings in the oil. The manufacturer was not made aware of the failure. The failure mileage was 104,673. The VIN was unknown.

- Durham, NC, USA

My car is knocking and wont go over like 35mph without shaking and knocking sounds.

- San Leandro, CA, USA

Engine light plus triangle light keeps coming on and off part was replaced light stayed off for 1 day came back on and losses power I have my grandchildren this happened in traffic keep taking to dealershop they claim rhey are qaiting on qors from manufacturers no word for 2 months now they have been dodging my calls by putting me on hold or dropping my calls

- Kansas City, MO, USA

2015 Kia Optima turbo.. I was entering the highway and was attempting to accelerate to merge with on coming traffic on the highway. In doing so, I realized my vehicle was not accelerating and when I looked down, all of the indicator lights were on on the dashboard. I managed to pull over to the shoulder just making it out of the lane of approaching traffic. Once on the shoulder, I placed my car in park turned everything off and tried to restart it. I then saw and smelled smoke coming from under the hood of my car. Frigthtened that it might catch fire, I turned the engine off, waited a few minutes and tried to start it again. Again there was smoke coming from under the hood. I then called for a wrecker. Had the vehicle towed to Kia dealership that same day. Did not find out until the following Tuesday that the engine was locked up and they were waiting to see if Kia was going to approve replacing the engine. Was told I should hear something by tomorrow. Still waiting to hear back. Details to follow.

- Fresno, TX, USA

My car has onky 64804 miles and my engine is lock

- Tampa, FL, USA

I was driving my car on the freeway and when the speed hit 60mph the car stalled and alot of smoke came out of the exaust. The card behind me had to slow down. I managed to pull over to the side and the check engine light came on and the car shut off. I turned it on and the check engine light was not on anymore and the car made smoke. I called comunity Kia on baytown and they said there was a bad PCV valave that had to be replaced. I paid for it and they replaced it and as I drove off home the car kept doing the same and stalling. I called the dealer and they told me they had to do an oil consumption test. The first test my car was low 2 quarts and they said the car was fine. "it lost 2 quarts but we dont know where its going" I told her it didnt feel safe to drive I didnt want it to catch fire and she said the car was fine. Than I drove it 600 miles and the car threw a whole lot more smoke and the engine was knocking and I took it back to the dealer. They said it was fine and the smoke I claimed was coming out was not. That the technicians turned it on and drove it did not see any smoke. I showed up to the dealer and turned it on and smoke came out and pressed on the gas and a huge cloud came out. They told me it was unbelievable. So now they want me to get a new engine and say its because I failed to do the oilchange.

- Houston, TX, USA