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.
Knock sensor detection system. Driving and all the sudden felt like it hard down shifted-?? car behind me almost hit me. Engine light started flashing so I pulled into autozone and plugged it in and got the knock sensor code. It-??s had oil consumptions issues for a while. It-??s so dangerous to drive with limited power and speed
I purchased this vehicle used in April 2023 with 3,000 to go prior to another oil change. I returned home from a trip and the oil light would come on only while turning or braking. When checking the oil there was no oil in the motor. The reservoir was filled and two weeks in the engine is low on oil again. There are no leaks. The car jerks at lights as if it wants to stall out. I feel unsafe driving this car.
High injector fuel pump top engine mount went out at 68000 miles. It caused the vehicle to stall and lose power and basically cut the car off while driving.
-Knock Sensor Detection System - ECU Logic Improvement - I Was driving with my infant son in the backseat. I was going 70 mph when my car started rapidly losing speed. This happened again with just myself after receiving the car from mechanic. There was heavy traffic and I had to swerve to avoid being hit by an 18-wheeler. - I can see on the website where I received the car from, there is a recall for my exact make and model with the same code but they say there is no recall for my specific car. - The check engine light started flashing and Kia Systems starts talking.
- Lithia Springs , GA, USA
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The contact owns a 2018 Kia Optima. The contact stated that the vehicle was sputtering while being started. The contact stated that the vehicle also sputtered while driving at various speeds, and while reversing. The check engine warning light was illuminated. The vehicle was taken to the dealer and the contact was informed that oil was getting onto the spark plugs and ignition coils. The spark plugs and ignition coils were replaced; however, the failure persisted. The manufacturer was not made aware of the failure. The approximate failure mileage was 70,000.
The contact owns a 2018 Kia Optima. The contact stated while starting the vehicle, the oil warning light illuminated. The contact checked the dip stick and there was no oil on the dip stick. The vehicle was taken to the dealer and an oil change was performed; however, the failure reoccurred. The vehicle was taken back to the dealer and the engine was cleaned but the failure reoccurred. The manufacturer was contacted but provided no assistance. The failure mileage was 77,000.
consistently getting oil changes. if the car doesn't rcvd an oil change before 3000 miles the check engine light comes on and then the light removes after oil change. in between the time period of getting oil changes it may run junky or you hear the catalytic converter trying to push air thru and it rattles.
My car engine burns oil EXCESSIVELY. After an oil change, 2 weeks later i had to put more oil in. The dealership is no help even with a warranty. The car burning oil is also causing other mechanical problems that are a hefty price that are only a temp fix. I have to put oil in every single week. 2-3 quarts a week. Due to the oil being burnt off, it has affected my spark plugs and has caused a misfire in the same exact cylinder for when it misfired for this same problem, a year prior. I took it to a kia dealership last year and they performed a combustion chamber cleaning ($650+) and it only worked for 3 months before my car was back to performing poorly due to power loss from misfiring again. This car has put me in a VERY TOUGH financial situation and the dealership and corporate are absolutely no help. a year apart, this car has misfired on the same cylinder twice. the dealership just tells me to do a combustion cleaning but due to it being very pricy and with how much oil i have to buy, it-??s not an option for me due to my financial situation. right now i-??m just hoping something will be done for the millions of people that are effected by this.
The contact owns a?2018 Kia Optima. The contact stated that after an oil change was performed on the vehicle, the oil pressure warning light illuminated. Upon inspection, the contact noticed there was no oil in the engine. The vehicle was taken to an independent mechanic, who added oil to the engine. The vehicle was not diagnosed nor repaired. The dealer was not notified of the failure. The manufacturer was made aware of the failure. The failure mileage was approximately?122,760.
While driving down the road the car said it had a major voltage failure and was shutting down. I was in the middle of the street and thankfully was able to coast to the turn lane before the car came to a total stop. since the gas pedal didn't do anything. the car then said there was multiple failures and the hybrid system needed to be immediately shut down. The car then wouldn't start or move after that. about 20 mins later the car like dashboard and screen would turn on but the engine would not. when it turned back on there were even more warnings along with other failures like emergency braking and transmission and the hybrid communication. when the tow truck came and took it it would go into neutral to get on the truck but wouldn't even do that when we got it to the dealership it had to be manually taken out of park to get it off the truck. there were lots of warning lights but the oil, engine, and another light I not sure what it meant were always on even when the others would go away after a while.
2018 Kia Optima ex A/T. my wife drive this car to work every day, 45-50 mile round trip for the past couple years. We have noticed that oil consumption is starting to become a problem. Im unsure the exact amount it goes through but it seems to be almost 3-4 quarts between oil changes. Every now and then it would randomly be a quart low, but no leaks, no noticeable smoking, no check engine lights. My wife has had a few times where the car would randomly loose acceleration nad slow way down. The car would come back up to acceleration after pulling over to the shoulder of the freeway when it happens. Im wondering if it might be related to the oil consumption, but not sure. It has the recal for the knock sensor update which we are waiting for Feb 28th, thats the time the dealer can get the car in for it. Our closest dealer is 150 miles from home. We have owned it since new and this is the only problem we've had with it. I hope we can get this resolved. No new car should go through this much oil at almost $6 a quart or more.
At around 40,000 miles my car started burning oil rapidly. No leaks were found and I would get an oil indicator light then the car would shut down while driving. I couldn-??t get it to accelerate. Mechanic said Kia-??s and Hyundais have been having those issues. I have needed oil changes every 3 weeks to keep in functioning.
The contact owns a 2018 Kia Optima. The contact stated that when the vehicle's oil will be as low as half a tank or lower the engine would suddenly stall. The vehicle would immediately regain power and function as expected. The failure occurred at various speeds with the highest speed being 60 mph. The contact had taken the vehicle to the dealer who diagnosed that there was fuel pressure pump failure. The vehicle had not been repaired. The contact received a letter stating that the manufacturer was well aware of the failure and have also created an extended warranty, however, they did not have the remedy. The manufacturer was made aware of the failure. The approximate failure mileage was 122,652.
I brought the vehicle into Kia service for the recall including a computer operating system upgrade. After the recall work was done the car driving at high highway speeds failed, and immediately slowed down, almost causing a rear collision. The computer system turned off the drive mechanism and I was left with only the electric motor to propel the car. The car barely limped off the highway. The car was brought to the Kia Dealer and no defect was found and the computer was reset. This problem occurred two more times, at highway speeds (70 mph) and Kia was contacted to find out why the problems occurred and how to fix it. To date, Kia has not responded to how to fix the problem and has ignored all phone calls and emails. The car has been in the shop for 3 months. The problem occurred only after Kia upgraded the software due to the recall. Additionally, the recall work was done. I do not know why the recall work was not reported.
My car is consuming 2 quarts of oil for every 1,000 miles. This falls under the oil consumption that needs a motor replaced and I am getting a run around from the dealership about getting it replaced. They are saying that Kia does not like to replace the motors and I'm better off trading it in. I bought this car intending on keeping it long term, not purchasing a new one. All of the regular maintenance has been done on the vehicle. I've been into the dealership a multitude of times a month due to issues with the car.
A D V E R T I S E M E N T S
- Smithville, GA, USA