Vehicle Speed Control Problems of Kia Motor Optima - part 1

Kia Motor Optima owners have reported 225 problems related to vehicle speed control (under the vehicle speed control category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Kia Motor Optima based on all problems reported for the Optima.

1 Vehicle Speed Control problem of the 2012 Kia Motor Optima

Failure Date: 09/19/2025

While in park and driving the instrument panel will show, "check brake" and "hybrid system warning! safely stop and do not drive". This is accompanied by the engine not responding to the gas pedal. The brake pedal will also loose pressure and once pushed the brakes will lock up making a grinding noise. The problem has not been able to be duplicated by the dealer. However there are multiple forms and online communities dedicated to try to resolve this issue since it's so prevalent. This issue causes a major saftey hazard as the car comes to a grinding halt and does not respond to the driver. From online sources it seems the problem is prevalent across years and models and only tied to hybrid vehicles.

See all problems of the 2012 Kia Motor Optima 🔎.

2 Vehicle Speed Control problem of the 2016 Kia Motor Optima

Failure Date: 07/12/2025

1) rear passenger window failed a couple months ago. I believe it was regulator, not 100% sure. Cost me a couple hundred to fix. Now, few months later, the driver side rear window has failed. I rarely use the windows so I believe the failing parts are kia known manufacturing defect. The dealer acknowledged that it’s a known problem with the vehicles like mine and even suggested the other one is going to fail soon. Now it has. If the dealership is aware then it’s likely a kia flaw. If it’s a know manufacturing flaw, shouldn’t kia should be fixing them instead of making customers spend upwards of $1k+ to fix both windows? 2) cruise control cuts off or doesn’t set and menus won’t go back to speedometer. While trying to set cruise control, it gets into the menu and won’t go back to the speedometer. Sometimes I have to pull over and stop to get the cruise control to work again. It gets stuck in the menu and can’t see the speedometer. Might get stuck on the trip screen, or the range. This has been happening since about 75k miles. It also doesn’t work with the pedal to set sometimes. Messing with it while driving can be a real hazard and sometimes I need to have cruise control to work. It’s deforming more than just inconvenient.

See all problems of the 2016 Kia Motor Optima 🔎.

3 Vehicle Speed Control problem of the 2018 Kia Motor Optima

Failure Date: 07/10/2025

Purchased car about 4 months ago, before warranty ran out, the shop looked at it told me it was fine, it wouldn't accelerate. Few weeks later same issue but all my oil was gone, they found 11 things wrong with the vehicle, told me warranty wouldn't take care of it unless the engine blow up. The salesman scottie mitchell told me check kia for recalls, called kia 3 recalls, they were trying to finance another car higher, back wanted to know why the dealership didn't know about recalls, kia place did call a robert. One of the owners did know about recalls, why dealership didn't pass them on. They trying to sell me a higher vehicle to keep cover the cost of the one I got 1st.

See all problems of the 2018 Kia Motor Optima 🔎.

4 Vehicle Speed Control problem of the 2017 Kia Motor Optima

Failure Date: 05/16/2025

The power steering stopped working and the car became hard to turn because of it. The power steering light (red color with steering wheel and exclamation point to the right of it) came on also.

See all problems of the 2017 Kia Motor Optima 🔎.

5 Vehicle Speed Control problem of the 2019 Kia Motor Optima

Failure Date: 04/20/2025

For several years my 'check hybrid engine' followed by turn off engine. The dealership can not figure out the cause. Twice in the last month the engine has automatically shut off when the "check hybrid engine' warning light displays. I nearly had an accident because the brakes are much weaker when the engine shut off. Kia dealership is unable to find the source of the problem and says the car is functioning normally and to continue to drive it.

See all problems of the 2019 Kia Motor Optima 🔎.

6 Vehicle Speed Control problem of the 2015 Kia Motor Optima

Failure Date: 03/19/2025

When driving on the highway my car suddenly started to stall with me on the highway. It went from 80 miles per hour to 20 miles per hour and then completely shut off in the lane of the highway. Thankfully I was able to pull over to safety. I attempted to start again, and the engine started with a weird noise coming from it. I had it towed to my local mechanic who told me that my engine is part of a safety recall.

See all problems of the 2015 Kia Motor Optima 🔎.

7 Vehicle Speed Control problem of the 2011 Kia Motor Optima

Failure Date: 01/03/2025

Hydraulic electronic control unit (hecu) experienced an electrical short circuit and engine hardly running.

See all problems of the 2011 Kia Motor Optima 🔎.

8 Vehicle Speed Control problem of the 2020 Kia Motor Optima

Failure Date: 12/07/2024

I was driving on the high way and the car loose power completely have to do change oil every two weeks and can’t find a solution.

See all problems of the 2020 Kia Motor Optima 🔎.

9 Vehicle Speed Control problem of the 2018 Kia Motor Optima

Failure Date: 10/10/2024

My engine burns oil very bad. Black smoke comes out of my tailpipe and I burn through 5 quarts in less than a thousand miles. I just got my oil changed two weeks again and I just had to add more oil to my car bc it was empty. I’ve had to replace the spark plugs twice due to soot build up. I can’t afford a new car I’m 17 and can barely afford the maintenance let alone a whole new engine. Have spoken to many mechanics and they all say the same thing “it’s a kia it’s gonna burn oil” its a known issue. And yet kia will not resolve it bc they don’t want to spend their own money to fix their mistake. I got an estimate for a new engine which is basically crucial and it’s over three grand. No matter where I take it everyone always says the same thing- to get rid of it before it’s too late. But I simply cannot afford to do that and I know my car is not the only one with this issue so many other people with the same car/engine have the same issue. 2. 4 l gdi !!!!! I wish someone would have warned me before buying kia. A recall to fix this issue is needed now. I lose control of the speed sometimes. I will keep my foot at a set position on the throttle and the engine will take off because it’s jumping to the usual power it should have. ( it has reduced power most of the time bc of the struggling engine) sometimes on the highway I’ll get a sudden burst of power and I have to let off the accelerator. Not safe at all.

10 Vehicle Speed Control problem of the 2020 Kia Motor Optima

Failure Date: 10/10/2024

Was on highway going 65, check engine light started flashing loss power. Couldn't go over 2000 rpms car would struggle to accelerate, car had been using up oil like crazy the week before. Stopped at an autozone car read code p1326.

11 Vehicle Speed Control problem of the 2016 Kia Motor Optima

Failure Date: 09/29/2024

While driving the car will not accelerate past 49mph in turbo mode and 61mph in regular mode and rpm will not go above 1800. And it jerks and studders. Blinking check engine light and consumes a ridiculous amount of oil even though regular maintenance performed. I have read several engine issues with this model and cannot find recall info.

12 Vehicle Speed Control problem of the 2015 Kia Motor Optima

Failure Date: 09/17/2024

The contact owns a 2015 kia Optima. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. Additionally, the steering seized. The contact stated that the steering wheel was difficult to turn, and the vehicle lost motive power. The vehicle was restarted; however, the failure reoccurred. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 174,000.

13 Vehicle Speed Control problem of the 2017 Kia Motor Optima

Failure Date: 08/09/2024

The ksds in my engine is causing engine failure due to the dealership failing to fix the problem when I first experienced stalling, lagging and misfiring of my vehicle, which would often make it shake and I would have to turn the car off and reignite it, sometimes more than once. My safety is at risk when driving, because the vehicle will lag while trying to accelerate in traffic. My mechanic researched the issue and found the recall and kia said they fixed it when it was issued and they didn’t. My check engine light is flashing now and it continues to lose power. I have contacted kia about the issue and I’m waiting on a response.

14 Vehicle Speed Control problem of the 2016 Kia Motor Optima

Failure Date: 07/12/2024

On [xxx] I was proceeding to come up to the stop sign when out of no where the car started rapidly accelerating and when I proceeded to step on the brakes it wouldn't stop it only sped up more. And caused a server accident that left me with serious injuries. And I cause of the defect they found me at fault said I failed to yield at a stop sign. The car never was fixed from the 2 times the motor has to be replaced by galena kia in fort myers FL. They even caused the ac to go power retarded and wouldn't work half the time. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

15 Vehicle Speed Control problem of the 2015 Kia Motor Optima

Failure Date: 06/21/2024

Car would not drive faster than 25 mph. Check engine light on codes p1326 and p0014. Not eligible for ki engine settlement but have the same issue. .

16 Vehicle Speed Control problem of the 2019 Kia Motor Optima

Failure Date: 05/18/2024

This vehicle is a lemon. It is a 2019 with 81,000 miles. How in the world does the engine start knocking when I have consistently, kept up with the maintenance on this vehicle. If I do not hear something soon im weakening legal action. Since may 18th I have been without a car. I am a single mom and this is so difficult. Mind you it was towed July 5th from where it broke down on me.

17 Vehicle Speed Control problem of the 2015 Kia Motor Optima

Failure Date: 03/29/2024

I was driving in downtown gilbert when I pulled up to a red light. My car would not inch forward when taking foot off brake. I then had to put my foot all the way down to get my car to drive. When taking a turn my car would run perfectly until I stopped. Then we pull up to parking garage and the car just stops without while in drive so I put it in park and then turn it off and then back on and it works again. I had the alternator, battery and starter checked and they were all good no issues so why am I having electrical problems with my vehicle kia needs to fix this.

18 Vehicle Speed Control problem of the 2016 Kia Motor Optima

Failure Date: 02/01/2024

Car was at about 70,000 upon purchase. Once driving it regularly, I immediately noticed a faint knocking noise upon acceleration. Also, when coasting the speed adjusted on its own intermittently, both up & down, not by much but enough that I felt it on the gas pedal. Other times it fails to accelerate when pushing on the gas pedal. I have to release the pedal & try again, sometimes more than once before it finally accelerates. Despite doing regular oil changes, my engine burns through oil long before next oil change is due, so I have to add 1 - 2 quarts of oil in-between changes. I was barely at 80,000 miles when engine started seizing & the following day the check engine light came on. It had to be towed to be serviced. They said the fuel injector or pump (not sure which) was allowing fuel to flood my engine which caused its damage. Even with what the warranty covered I had to pay $500 out of pocket so there were a lot of repairs. I can get a detailed print out of service if needed. When I do oil changes there's oil under the oil pan somehow, but its not leaking because there is no oil where I park. As of lately, even though all fluids are good, when the car is idle with a/c on, the temperature starts to go up until the car is in motion again, then the temperature goes back down quickly. It has only overheated once, which was the first time I noticed the problem because I was parked at a gas station on a hot day checking my phone & the a/c started blowing warm & dash said, "engine overheated". Only happen the one time because I have been cautious about watching the temperature to avoid it happening again. I recently passed emissions & had autozone do code reader check & nothing came back. In order to figure out problem I'd have to get diagnostics test that requires I leave the car for at least 2 days so it hasn't been something I can manage yet. My car is available for inspection if needed & I'm happy to provide detailed print out of repairs if requested.

19 Vehicle Speed Control problem of the 2015 Kia Motor Optima

Failure Date: 01/11/2024

3 months prior to my car going into limp mode I had an incident where I was on the highway and had to come to a stop of major traffic and suddenly my car cut off out of nowhere. I got it to crank after putting it in park, but it was very scary being on the highway thank god it was traffic to where cars wasn't going so fast. Fast-forward to my recent incident to now my car's now in limp mode (mil) same situation different times was getting on the highway and started to pick up speed to accelerate to 60mph my engine light started to blink non-stop and here I am again in a terrifying situation to where I have to get back off of the freeway and I also was on my way to work now having to call in and praying and hoping nothing happens to me while trying to get my car home now I've called I'm certain dealerships decided to go with a dealership to get my recalls done and the dealer basically told me he told his mechanics to hurry up and do my recalls that he could do and get my car out of their shop and also told me to get rid of my car basically refusing to do what he's supposed to do regardless but I truly believe I need a new engine and that's why the dealer rushed me out I just want to know how can I get my vehicle fixed with no problems and also without dealerships denying me. I would love to hear back from you all to know my next step in getting my vehicle recall done please and thank you.

20 Vehicle Speed Control problem of the 2020 Kia Motor Optima

Failure Date: 01/08/2024

Leased this kia by force from rightway auto here in indianapolis in. Had for about 1 1/2. First notice after filling up my tank gas was depleted within 3 days on driving 12 miles to and from work in town. Then oil start disappearing a week after oil changes. . Around Jan 8,2024. Check engine light start flashing driving the highway to work. Speed jumped down to 45. Engine start shaking if I tried to go faster. Got a engine light scan says needs knock sensor. Had it replaced. 6 months later. Car did the same thing. Same code. Knock sensor. Had it re replaced. 3 hours later car did the same thing. Each time while driving the highway almost got me rear ended. On June 27,2024 took it to ray skillman dealership. Found out knock sensor needed to be replaced again, this time along with plugs n worse apparently knock sensor throwed off spark plugs. Was told it's consuming a lot of oil they don't know why cause there's no leaks. Spent over 800 at the dealership. After paying 320. Replace part. Then another 140. Replace that replaced part. Less than a week after spending 800 at the dealership. [xxx]. On my way to work my car did the same thing driving on the highway where the speed limit I think is 70. Cars flying. And almost got rear ended again. Cause the speed of the car dropped to 45, engine light start flashing. Car started shaking. . So again I'm out of a car cause it has to go back to the dealership. Not enough money for lift to work n home. About to lose my job. Just paid my car note on the 23 of June at 700 plus insurance 175. . 1300 for rent. And a minimum wage paying job at the airport. Apparently the 5 yr warranty on the car is up when I just reached 10000 miles . And I only had this car for less than 2 years I think it had 90 something thousand miles on it when I got it. . I guess the makers of this car knew this trash would only last 5 yrs . Reason why it came with a 5 yr manufacturer warranty can someone please help. We the people are out of money. Information redacted pursuant to the freedom of information.

21 Vehicle Speed Control problem of the 2016 Kia Motor Optima

Failure Date: 12/06/2023

While we were driving home (3 people in my car), with no notice, my car lost complete acceleration and broke down while we were on the highway. We hardly had notice to understand what was happening, let alone the other cars/people behind us on the highway where we almost got hit before being able to pull over to the side of the highway. We then had to wait for a tow-truck, again, on the shoulder of a very busy highway. Later, I came to find out that this was "sudden and unexpected engine failure" that occurs in multiple models of kia and Hyundai that was included in the Hyundai and kia engine litigation, case no. 8:17-cv-00838, and Hyundai and kia engine litigation ii, no. 8:18-cv-02223-jls-jde, new theta ii class action lawsuit. Unfortunately, this was the first time I had heard of this, as I'd never received any recalls or notices for my car around this, even though my car is a part of this. As I am in contact with kia customer care attempting to resolve this issue - which has been an awful experience so far - they have informed me that the recall campaign pi1802b - pi1802 ecu upgrade - is a "product improvement" instead of a safety issue, in which I completely disagree! this put the 3 people inside my car at the time of the engine failure in danger on the highway with zero notice except for when it happened, as well as the other people/cars on the highway surrounding my car. Clearly this has been a much wider issue for kia and Hyundai that has called for class action lawsuits, and my experience has been terrible so far trying to get this resolved. I'm extremely unhappy with their customer service and "help" this far, and even more upset that this did cause safety issues that it feels they don't care at all about correcting or taking care of their customers.

22 Vehicle Speed Control problem of the 2016 Kia Motor Optima

Failure Date: 11/24/2023

When accelerating the car will randomly loose all power from the engine. The electrical systems will stay on but the car rpms will drop to zero. The accelerator will not provide acceleration when being pressed. The car has to be turned off and then turned back on for power to be restored. The check engine light, the oil light and another warning light will come on.

23 Vehicle Speed Control problem of the 2016 Kia Motor Optima

Failure Date: 11/11/2023

Driving 80 miles an hour several hours from home on a major interstate and my car shut off. Pulled over on side of interstate and check engine light came on and car won’t accelerate and is making a knocking noise.

24 Vehicle Speed Control problem of the 2016 Kia Motor Optima

Failure Date: 10/30/2023

It started shaking really bad out of no where , then wasn’t going faster than 80 then down to 65 but wouldn’t go more than 80 with my foot all the way on the gas. As soon as I made it to work tonight the car cut off. I got a jump the car was still shaking & wouldn’t stay on if I let my foot off of the gas. I started it again without the cables but it cut right back off. I saw on cars. Com it’s a recall for the similar thing, number sc172. I have been having fuel leaks for a while and had my knock sensor replaced from a previous recall. Now I have no way home.

25 Vehicle Speed Control problem of the 2019 Kia Motor Optima

Failure Date: 10/17/2023

System failed to pick up speed.

26 Vehicle Speed Control problem of the 2019 Kia Motor Optima

Failure Date: 10/17/2023

Since I have had the vehicle I have had to have multiple spark plugs and engine coils replaced, literally every 4-6 months. One diagnosis said there was a problem with the motor, when I told kia, they did not come back with the same diagnosis, well they sort of did, but did not noter it as an issue. Also, my car burns oil way too fast. I'm having to put in 2-23 quarts every 2-3 weeks. I have been told that the gdi motors are the culprit for this. Have even heard Hyundai had a enough complaints and has recalled the motor, but kia did not, so we are still running around here paying excessive amounts on oil and repairs.

27 Vehicle Speed Control problem of the 2018 Kia Motor Optima

Failure Date: 09/15/2023

Car will not go pat 60mph and I haven’t had this car just over 6 months. And the camshaft sensors are gone out. Smoke comes out the pipe when mash on gas…. It is really a bad vehicle. And southeast auto refuses to fix it. I really honestly think the motor is bad in it. Because I been having issues with it since I had it.

28 Vehicle Speed Control problem of the 2015 Kia Motor Optima

Failure Date: 09/10/2023

Excessive shaking of engine, stalled out while driving on highway, knocking in the engine.

29 Vehicle Speed Control problem of the 2015 Kia Motor Optima

Failure Date: 09/08/2023

1st problem happened when I was at a complete stop, at a traffic light, in rush hour traffic. All the sudden steam started coming out from underneath my hood. I instantly looked at my temperature gauge and it did not show anything however I knew something was wrong when the light turned green I immediately pulled over, out of the street as far as I can get without being hit by other cars. I put on my hazard lights. Pop the hood. I had a gallon jug in my trunk. And I walked to a store to fill it up with water. Came back, poured the entire gallon into the radiator. Waited for at least 30 minutes. Started the car and made it home. After that incident, the problems with this 2015 kia Optima has snowballed. It just amazes me that it has started happening 2000 miles after my extended warranty expired. I had to purchase and replace spark plugs, the coil packs, two other sensor things, which I do have the receipts for and now the car reeks a gasoline and it automatically kicks into overdrive and I lose my reading on my tachometer, this puts it into a disabled mode, I'm on the freeway in russia traffic, trying to pull over without getting into an accident. Do I believe this is a safety concern? you're damn right I do am I mad yes. I am taking my k I a into the dealership. After doing my research on this make and model, is the dealership doesn't honor what the claims department and the media response to this problem. Will then I will leave the car with kia because I cannot afford a new engine. I will have to call to finance company and let them know that I voluntary I'm letting them come repo this car, good luck selling it.

30 Vehicle Speed Control problem of the 2018 Kia Motor Optima

Failure Date: 09/04/2023

What component or system failed or malfunctioned, and is it available for inspection upon request? ******speed control- vehicle will stall while on road/ highway causing rear vehicles to brake. How was your safety or the safety of others put at risk? *****several times I was forced to pull over to side lanes to avoid being rear ended. **** the problem been reproduced or confirmed by a dealer or independent service center? I have called dealership several times in regards to this issue, all I was told was to do not use a/c or heater as that will make the vehicle lose power. Refused to conduct was full inspection of vehicle. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? ****, no it has not been inspected were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? **** warning lamps not symptoms of the problem prior to the failure.

31 Vehicle Speed Control problem of the 2017 Kia Motor Optima

Failure Date: 08/30/2023

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.

32 Vehicle Speed Control problem of the 2019 Kia Motor Optima

Failure Date: 08/16/2023

The contact owns a 2019 kia Optima. The contact stated while driving at various speeds, the vehicle failed to immediately accelerate while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to the local dealer who was unable to duplicate the failure to determine the cause of the failure. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 15,000.

33 Vehicle Speed Control problem of the 2019 Kia Motor Optima

Failure Date: 07/23/2023

Breaks locked or failed and was forced off road into a ditch, car totalled.

34 Vehicle Speed Control problem of the 2013 Kia Motor Optima

Failure Date: 07/15/2023

The car shut off on me while driving.

See all problems of the 2013 Kia Motor Optima 🔎.

35 Vehicle Speed Control problem of the 2012 Kia Motor Optima

Failure Date: 07/10/2023

Because the brake stopper or brake switch are messed up and my brake tail light stays on all night causing it to drain the battery if the car is braking while I’m driving it and the traction control light comes on and the speed is decreasing as I’m driving because the car is braking on it’s own it has nothing to do with the lights nor the battery the root of the issue is the brake line because the tail light will not cut off because the brakes are still engaged even when the car is off causing the tail lights to stay on so the lights is what is draining the battery the lights stay on all night in a car the battery dies but the battery nor the lights is the issue it’s the brakes.


Other Common Vehicle Speed Control related problems of Kia Motor Optima


Safety Ratings of Optima Cars
Fuel Economy of Optima Vehicles
Optima Defect Investigations