2017 Kia Optima acceleration problems

Filed May 19, 2025 · Acceleration, Steering · GA

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.

Filed Aug 11, 2024 · Acceleration, Engine · OK

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.

Filed Sep 12, 2023 · Acceleration, Engine · NY

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

Filed Sep 1, 2023 · Acceleration, Engine · WA

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.

Filed Jul 24, 2023 · Acceleration, Driver assistance · CA · crash · 2 injuries

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

Filed Oct 23, 2022 · Acceleration, Electrical · FL

For the past 5-6 months I’m have ongoing issues with my engine and excessive oil consumption. I’ve completed the three oil consumption test per 1000 miles. On the last test(3rd check), I was told I passed and nothing further was needed. Approximately 1 month after that my engine light illuminated and my car violently shook upon acceleration and while sitting idle. Was informed it was my spark plugs and electric coil… oh and a routine oil change, which I paid to have repaired at approx. $650 this was in late August/Early September. Now here we are in late October and my oil lamp is on yet again! My car does not achieve speeds no higher than 50 mph. I’ve been to the dealership 7 times since April 2022. There’s an expense with owning cars but this is ridiculous. I’m currently a few hundred miles shy of 80,000 miles

Filed Sep 23, 2022 · Acceleration, Driver assistance · GA

I was driving with an SUV in front of me at 18-wheeler in front of them. This is on a road where the speed limit is 65 however there's a section on 301 where there's a traffic light. All three vehicles came to a slow normal stop and the adaptive cruise control was doing a good job of slowing the vehicle down without my input. But the SUV when we were at about stopping speed but had not yet come to a complete stop, the SUV switched to the left lane. At which point I was maybe 20 ft behind the 18-wheeler and all of a sudden the car is adaptive cruise control tried to accelerate the car back up to the setting of 65. It didn't register the 18-wheeler at all It just registered that the car in front of me had cleared the space and if I had not been paying attention and immediately applied the brakes to stop the car manually It absolutely would have accelerated directly into the back of the 18-wheeler. I was maybe 5 ft and it was still accelerating when I slammed on the brakes. I've been able to since reproduce the effects, it doesn't register 18 wheelers correctly in this specific situation as vehicles. I've even had the camera recalibrated in between tests. I have everything on video but unfortunately do not have access to the car's computer logs. I would be willing to send in my ECU for whatever is needed to identify this further.

Filed Sep 12, 2022 · Acceleration, Engine · TX

Hello I've been having my car for a year I told the dealership the problem but it seem as they don't want to fix it My car wouldn't go over 60miles and also my engine just locked up this doesn't make sense when they know these problems are a recall on this type of vehicles

Filed Jun 5, 2022 · Acceleration, Engine · GA

This has happened 3 times driving car almost comes to a complete stop. Acceleration dropped down to 20 MPH. Was told it was a knock sensor replace in March in May did it again . Replaced it against the very next day it did it again. Went online and said it was a recall but nothing is showing up here . I will contact Kia in the morning we could have been killed this happened in the expressway

Filed Oct 23, 2020 · Acceleration, Brakes · 20,526 miles · AL

Within a week both front and rear passenger wheel speed sensors failed. Resulting in a prompt on dash at start up and consistently displayed for aeb system service after vehicles automatic system scan an see difference in mileage in attached pictures. Kia technician said it is a common issue and sees atleast 4-5 vehicles per week with this part failure.