What 252 owners told NHTSA about the 2017 Kia Optima

Twice while driving in rain my front end collision warning has taken control from me and slammed on the brakes bringing my car to a full stop. There was no vehicle or object in front of me either time. The second time I narrowly missed being rear ended.

NHTSA ODI 11547008

My car does not accelerate easily and struggles with basic speed. I took it to a mechanic and am being told that my turbocharger has failed and must be replaced because there is fuel in my oil and there may be damage to my engine as a result that would require me to replace the engine. This is the second time in less than 2 years that this has happened since I have owned this vehicle. The mechanic says the engine could seize up or catch fire at any point and that I will have to have the oil drained, flushed, and replaced, hopefully have the fuel leak found and repaired, then the turbo replaced. Only once all of that has been done will I know if the engine will still be operable. The first time this happened it was repaired at a Kia dealership in Denton TX under warranty. The vehicle is no longer under warranty and should not have this problem every year.

NHTSA ODI 11547009

Engine needed to be replaced as part of the recall for knock, however they said because the repair was done on a subsequent work order and the first one was for a failed AEB module that none of the repairs are covered. I'm out over $13,000 for what should have been warrantied

NHTSA ODI 11545834

I was driving at night and the headlights suddenly turned off for about 5 seconds and then it will come back on. Don't know whats going on with its headlight.

NHTSA ODI 11545528

My vehicle came up with a check engine light blinking. I took it to a Kia dealership where they put the ksds update in. A week after driving it, I started experiencing loss of power and the check engine light came back on. But this time not blinking. My car accelerates slowly, it is a struggle to get to 30 mph. My engine is making loud noises as if I am flooring the gas pedal when going 10 mph. Hills are impossible and dangerous to drive up. I took it in where the man told me my oil was empty, when just the day before it was full. I ran the code reader which came up p0010 for a camshaft. Now I’m being told it’s the entire top motor needing replacement due to “no oil”. I saw online recalls for this exact issue on the engine. It states of a lifetime engine warranty for this qualifying engine problem. I called the dealership where the lady informed me that there is a third party company that makes warranty coverage decisions, and that they make the decision on if it’s covered based on how much they will have to pay. If it’s a lot, it’s on me. Basically my engine failure qualifies but they don’t want to pay the amount of repairs. So I’m stuck with paying thousands for a hazardous car that I’ve only had for 8 months.

NHTSA ODI 11545195

i had engine light a code P200a on my 2017 kia optima ex 17,000 miles i have like a hesitation when accelerating, sometimes just sitting idling or sitting at a light feels like going to stall. i had some one check it they told me to bring it to the dealer because they looked it up and said it is like a recall on 2016 kia optimas there is a Technical Service Bulletin on the same condition that i have i went to the dealer and they said thats what it was the (VCMA)variable charge motion actuator on the intake manifold..i dont drive to much with the car i looked on line and a bunch of people say they had the same problem with my year and older models.thank you.ihad it fixed at the dealer on 8-30-23 case #15777155

NHTSA ODI 11544067

In the last year, my car has been in the shop countless times. I have had my knock sensor replaced and fixed multiple times. There is a significant lag when taking off from a complete stop, and there have been times that I cannot exceed more than 60 MPH. I have had my car serviced the exact way it states in the owner's manual without fail and still cannot find a cause for why my car is experiencing all of these issues. To get the motor to accelerate is nearly impossible 90% of the time. There is currently a recall on some other 2017 Kia Optimas for the Knock Sensor but there is not one on mine, even though mine has been replaced and fixed several times.

NHTSA ODI 11543155

Vehicle had oil change & filter service done on April 27, 2023 for the purpose of hoping the service would rectify an Oil Pressure Sensor Light illuminated on the dashboard. It did not. Sensor was subsequently replaced by the dealer. Vehicle taken into the dealership today (September 2, 2023) for Pennsylvania State Inspection and Emissions, along with another oil change service. Dealer technician in the course of performing the oil change, noticed after he put the new oil plug washer and bolt back in place, a minute crack in the oil pan, itself. He took a picture of it, that I will include with this complaint. Unfortunately, the definition of the photo leaves a bit to be desired. The dealer service writer suggested that too much force (pneumatic socket driver) was employed when tightening the oil pan bolt. I stopped at the location where the April 27, 2023 was done. The General Manager assured me they use a power torgue ratchet and not a pneumatic socket driver. He went under the car and detected a minute leak and said he would forward his report to their Quality Control Department. He asked me if I could bring the car back on Tuesday or Wednesday, September 5th or 6th for a re-inspection. I said I would do that. He did mention there is a possible Class Action Suit that might be filed over Kia/Hyundai Oil Pans and Bolts. It cites the use of poor materials used in the pan construction. Reports range from leaks to the oil bolt plug falling out due to expansion/contraction under duress. Don't know where or when any Class Action will manifest itself, but this oil change facility needs to step up and replace the oil pan, since they were the last ones to do a change before today.

NHTSA ODI 11542271

Vehicles has most recently developed a "whizzing" type sound coming from the transmission just before it shifts into the next gear. It is most discernible when it shifts out of 1st, 2nd, and 3rd gears. I don't profess to know if modern transmissions have "Bands" that are adjustable or not. Clearly, it is a sound that has never been present. There's been enough wrong with this Kia, so why not transmission issues as well. I was at my dealer today for PA State Inspection & Emissions along with an oil change (a problem arose out of the oil change that I just sent into the NHTSA) and they have me coming in on September 12th for a diagnostic look.

NHTSA ODI 11542272

First I had an oil leak which I was advised to warm my car up to prevent from getting worse. At the time I was told it was minor. Then my oil light started coming up every 2 weeks and when checked there was no oil. Now 2 months later, my car has stopped and showed a blinking check engine light. When checked I was told a code of p1326 which is the knock sensor. I have only had my car 7 months and it’s been problem after problem. Not to mention only a month after buying it was stolen. Due to no immobilizer So I’m sure a lot of the issues are also a result of the dumb theif who decided to damage my car. Also my cruise control doesn’t work a lot of the time.

NHTSA ODI 11542002

The contact owns a 2017 Kia Optima. The contact stated while driving 40 MPH, the "Check High beam Assist System" and "Check Lane Departure System" messages were displayed. The Forward Collision Avoidance warning light and an unknown warning light were illuminated. The contact stated that the failure had been recurring while starting the vehicle. The vehicle was taken to the dealer, where it was diagnosed that the front view camera needed to be replaced. The manufacturer was notified of the failure, and a case was opened; however, no assistance was provided. The failure mileage was 39,715. The contact is requesting to withdraw the complaint.

NHTSA ODI 11540701

The contact owns a 2017 Kia Optima. The contact stated that after driving, there was an abnormal fuel odor inside the vehicle. There were no warning lights illuminated. The vehicle was taken to an independent mechanic, who informed the contact that the fuel pump assembly and fuel line needed to be replaced. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 46,000.

NHTSA ODI 11538710

My 2017 Kia Optima is running out of oil between oil changes which I do on time. Before my next oil change it has no oil reading on the dip stick. I just had this occur again and I had to add two quarts. The oil light only blinked on for a second. When I checked it, no oil was reading on the dip stick. Taking it to auto store I was told by worker his mother has the same problem with her 2016 Kia and they replaced the motor in a recall. Mine is a GDl engine. Something needs to be done with these engines. I'm having the same problem a lot of other people are having.

NHTSA ODI 11538291

I have replaced my cars spark plugs and all things related to the spark plugs for the last 4 months. After taking NY car for maitnence over and over again at the Santa Fe Kia in Santa Fe, NM. The car has cintun3d to have issues. My car is currently having a issue with the knock sensor and wire harness from the Diagnostic I received from my Local Auto Zone in Las Vegas, NM. The car does not drive correctly and sputters. I have took it to be be maintenence over and over again and spent over 500.00 for the maintenence this last four months. And it seams it has been one issue after the other my car is under 70,000 miles. I give it proper maintenence and oil changes.

NHTSA ODI 11535622

Have lost 4 qts of oil in the last month. Brought it to the mechanic and they couldn’t find any leaks. They said the only way I’m losing oil, is that the car is burning through it. They’ve seen the same issue with these cars. Only 65,000 miles on it.

NHTSA ODI 11534919

On 6 June 2022 I was driving Eastbound Interstate 80 passing Fairfield, CA. Traffic was moderate, average traffic speed 65. The Kia’s Adaptive Cruise was enabled and set to the maximum amount of safe distance. I recall the car directly in front of me changed lanes to pass a truck towing a trailer. I remember the Kia began to accelerate and I couldn’t turn the wheel. Next memory was opening my eyes to the dust smoke of deployed air bags. I lost consciousness likely due to the sudden impact and air bags deployed. I was taken to a Fairfield hospital by ambulance where I spent 4 days. A slurry of tests ruled out loss of consciousness as the cause. No stroke, heart attack or seizure occurred. I was treated for bruised ribs due to the airbag. No doubt to me that this collision could have been catastrophic to this driver and others driving nearby. Witness reported that I sped up and clipped the truck/trailer while attempting to pass. What I believe happened: 1) the Adaptive Cruise accelerated when it determined there was room but failed to see the trailer and 2) the steering was unresponsive when I attempted to avoid a collision. The reaction time between car accelerating and getting knocked out had to be a mere three or four seconds. The vehicle was totaled, The insurance company, Mercury Insurance, released the vehicle

NHTSA ODI 11534208

KIA states they are unable to provide the vehicle with the anti theft software update due to the vehicle having a remote start. I asked if they can remove the remote start. KIAs are not safe with only using the Club steering wheel lock. Theives are drilling a hole through the keyhole or cutting them off. My car is now worth less & auto insurance is becoming more difficult. Please make them do something! These cars are still getting stolen nonstop every single day!

NHTSA ODI 11533907

On Friday 6/23/2023 on my way home from work, one of the clutches went out on my DCT Transmission without any warning. I was at a stop light in front of all of the cars in a busy section and wasn’t able to go. I was able to get it to a safer location, but new something was wrong with my transmission. My mechanic was able to tell me that I’ve lost the 1st & 3rd gear. We drove around a few blocks with his diagnostics computer hooked into my car. My car isn’t safe to drive due to the faulty DCT Transmission Kia had installed into this model.

NHTSA ODI 11530790

I only had the car 2 years. In the last two years, I have been getting my oil changed every 3 months. The oil goes out fast. I'm a local driver so I don't go too many places. When I brake or stop, my oil light blinks, when I'm completely out. This month (June 2023) it's staying on. When the temperature gage rises half way the oil light comes on and stays on. I just recently put oil in, so it's not empty or low. Nor is it overfill. I was told it's the GDI Engine. Honestly, idk where the oil is going and why it's running out so fast. And I just learned today a friend of mines KIA is starting to do the same.

NHTSA ODI 11528550

The contact owns a 2017 Kia Optima. The contact stated that on two separate occasions while driving at undisclosed speeds, the steering wheel became stiff and seized before the vehicle stalled. The vehicle was towed to the dealer where an unknown software update was performed, and the anti-theft software was updated. The vehicle was repaired. The contact then stated that while driving approximately 60 MPH, the vehicle started to hesitate. The check engine warning light was illuminated. The contact then stated that every two days he had to add 1-quart of engine oil. The vehicle was taken to the dealer where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that the vehicle was not covered under warranty, but no further assistance was provided. The failure mileage was approximately 90,000.

NHTSA ODI 11525683

I have the oil problem that everyone else has. I drive everyday for work and every week I have to put oil in my car. I am coming up on 100,000 miles. My car hesitates and this is the second battery I have had to put in it in three years.

NHTSA ODI 11523756

The contact owns a 2017 Kia Optima. The contact stated while driving approximately 75 MPH, the contact attempted to accelerate to change lanes however, the vehicle failed to respond. The contact stated that the vehicle started to decelerate and sputtered as if the vehicle before the vehicle stalled. The contact stated that several unknown warning lights illuminated. The vehicle was pulled over to the side of the roadway and towed to the dealer. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the entire engine needed to be replaced. The vehicle had not been repaired. The contact stated that the vehicle had been consuming approximately one quart of engine oil every 500 miles. The manufacturer had been informed of the failure. The failure mileage was approximately 167,000.

NHTSA ODI 11520970

To whom this may concern, I have had my car for several years now and the oil consumption is outrageous. I burn 5 quarts of oil every 2-3 weeks. Every time I had taken my car to get oil changes I am told that my specific engine has always been an oil guzzler. Well fast forward to last week. I was driving my car to work when the engine light came on and my car no longer wanted to accelerate. I pulled over and turned the car off. I changed out the battery considering maybe this was the issue. This did not fix the issue. I ended up towing my vehicle to the Kia Dealership in Hurst. I was told that I had 2 broken cylinders and my engine is not replaceable. My question to the service tech was how would my cylinders just break? I was given no answers but a number to call. This number ended up being Kia Consumers who don’t call me or answer the line. I have had the knock sensor replaced which should cover me for any extended warranty that is said to be in place but I am pulled in circles. I need help getting my car through the motions.

NHTSA ODI 11521073

Since this car did not come equipped with the Anti Theft Immobiliing System, due to recent events like increased theft of Kias and Hyundais ill equipped, an software upgrade was developed by each of the companies. When the dealer performed the anti theft software upgrade to my car, I was not informed at the time of the repair that this software upgrade disables the use of my Kia Remote Starting System. I was told Kia is working on a fix. So, in essence, we need a fix to fix a fix, simply because Kia and Hyundai decided in a cost saving measure to manufacture select years and models that are not equipped with the engine immobilizer key recognition system. I have heard talk of a possible recall for these affected vehicles by the NHTSA. Additionally, my car just manifested an issue today with an illuminated Oil Pressure Indicator Light on the instrument cluster. I have plenty of oil on the dipstick. Could this be more of the same with respect to previous years engine failures.

NHTSA ODI 11519168

This is how I am feeling and the reason for being an unhappy customer. I shouldn't have to keep buying gallons of oil to put in my car every other day. Oil change was done on Sept 6th along with spark plugs put in due to oil consumption. Took my car again to Kia on Sept 21th because there was no oil in my vehicle, so they put oil in. Then on Sunday Oct 2nd I had to spend $44 on a gallon of oil because there was no oil in it once again. It’s a recall and should be fixed regardless if it doesn't shut off while I'm driving, hearing the knocking noise, and or the check engine light comes on. First I was told to bring it or call if the check engine light comes on and stays on now I am told it has to come on and stay blinking. I can be on the highway with my family or infant grandchild and my car shuts off what if I cause and accident, kill someone, or myself or family dies in my car. Would you rather have a lawsuit or fix the problem before that happens. I have talked to other mechanics that have went through it with their customers and they fixed the issue with the Kia's before it gets to this point. Still has of now every two weeks I am buying $44 worth of oil to put in my car. Even from the advisor that I have been dealing with at Kia named Beau stated that my spark plugs issue was from the oil, and he always stated oh its getting close to the motor going out. Now my car is hesitating and its doing the same thing as it was before the new spark plugs except the check engine light isn’t on. I can’t afford to keep putting oil in it and constantly getting oil changes. Just from the receipt the Kia Manufactured attached isn’t the only time that I have been to Kia or contacted the manufactured company regarding this. It took me to take it to a different shop when I can’t stating to Kia the issue than finally they said it’s a recall on the car. It’s also a recall on the fuel pump and I advised them and still didn’t order the part or fix that as well. Still having issues now

NHTSA ODI 11518826