Kia Optima Complaints

7,843 consumer complaints on file.

#11650380March 25, 2025
ENGINE
issues with the engine running hot//drains oil constantly, have to get an oil change/oil fill ~every 2k miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650447March 25, 2025
ENGINE
The contact owns a 2015 Kia Optima. While the contact's sister was driving at an undisclosed speed, there was smoke coming from the engine compartment. The contact stated that several unknown warning lights were illuminated. The contact's sister parked the vehicle and performed an inspection of the vehicle. The contact's sister opened the hood and confirmed the smoke was coming from the engine. The vehicle was restarted; however, the vehicle failed to operate as intended. The vehicle was towed to the residence. The vehicle was then towed to the dealer; however, the dealer provided an unofficial diagnostic result of possible engine failure. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 106,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650475March 25, 2025
ENGINE, VEHICLE SPEED CONTROL
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650603March 25, 2025
AIR BAGS, UNKNOWN OR OTHER
There is a clean slit on my dashboard where the passenger airbags are it’s started to form a complete square around the air bag placement and I’m worried it might have a problem with the airbags and its not just cosmetic. When I googled the issue there are tons of kia drivers with the same clean sit appearing over the passenger air bag. I contacted Kia dealership and they said I’d have to pay for a diagnostic fee to determine if it’s a problem but there’s clearly a problem with the 2016 kia so I’m sure all of us owners would appreciate it being recalled
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649988March 23, 2025
UNKNOWN OR OTHER, ENGINE
HAD CAR FOR 2 AND 1/2 YEARS STARTING ABOUT 9 MONTHS AGO STARTED HAVING ISSUES WITH OIL LEAKING ISSUE. I NOTICED WHEN STARTING CAR AND MADE SHAKING SOUND BOUGHT TO MECHANIC AND TOLD ME THE OIL LEAKED HAVE TO REPLACE SPARK PLUGS AND HAVE DONE ABOUT 4 TIMES NOW SEPT 2024, FEB 2025, 03-14-25 AND THIS MORNING 03-23-25. I'M STILL MAKING PAYMENTS ON THIS CAR BESIDES COSTS FOR REPAIRS. THANKS APPRECIATE ANY HELP. MY MECHANIC SAID WHEN ENGINE WAS BUILT NOT PUT IN STRAIGHT IN VEHICLE WONDERING IF THIS RELATED TO MY ISSUE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650012March 23, 2025
STRUCTURE:BODY, UNKNOWN OR OTHER
Rapid Delamination and paint peeling in the color of snow pearl white. The entire car is affected by this defect. Somewhere on the paint assembly line a missing step in the paint procedure is causing detrimental corrosion and overall safety and protection of the elements from outside.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649874March 22, 2025
ENGINE
I was driving home from work when my car started to herk. So I pulled over turned my car off. When I started it again it started to knock and not accelerate. I scanned the computer telling me that it was a knock sensor. I took it to a mechanic and he told me there were brass shaving in my oil. Also said I need to replace the engine because of the problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649658March 21, 2025
ENGINE, ELECTRICAL SYSTEM
There appears to be an issue with Kia USA regarding an oil switch fault that the company may be aware of but has not addressed through a service bulletin. We own a 2017 Kia Optima with a 2.4L engine and 84,000 miles that has recently started experiencing an intermittent oil pressure light. Thinking the issue was covered under warranty, I took the vehicle in for repair, only to receive a quote of $6,000. The faulty switch had pushed oil through the wiring harness, contaminating the powertrain control module and fuel injectors. I have found information indicating that Kia issued a service bulletin in April 2022 for the same switch used in the 2.4L issue affecting 2015-2018 Kia models with 3.3L engines. However, when I provided this information to the dealer, they insisted the switch in my Optima was different and not covered by the bulletin. I have repeatedly requested the part number for the faulty switch referenced in the bulletin, but have not received a response from the dealer or Kia corporate. The information I found on-line is that the switch in both motors are the same switch. I understand that if this issue is not addressed early, the repair cost can reach upwards of $7,500. If Kia had proactively notified 2.4L owners about the switch issue in 2022, my problem may have been caught and resolved before the extensive damage occurred. Furthermore, if the faulty switch was used across multiple Kia models during the same time frame, the company should have included those vehicles in the service bulletin. I am not concerned with getting my own Optima repaired, but I find it unacceptable for Kia to take advantage of customers in this manner. An $18 part failure should not result in such significant damage, and Kia's lack of transparency and action is disappointing. I hope that by sharing this experience, Kia will be compelled to address this issue and prevent further financial hardship for their customers.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649717March 21, 2025
ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION, ENGINE
The contact owns a 2011 Kia Optima. The contact stated that upon starting the vehicle, there was an abnormal rattling sound coming from the engine. There was no warning light illuminated. The vehicle was taken to an independent mechanic who noticed that the engine oil level was abnormally low, and that there were no visible signs of an oil leakage. The oil level was topped off; however, within 3 weeks the oil level was abnormally low again. The vehicle was taken to a local dealer to be diagnosed and the contact was informed that an excessive oil consumption was not included in the engine replacement warranty extension. The contact was informed that a further diagnostic test was required. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 68,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649729March 21, 2025
ENGINE
The engine started knocking so I started driving to the dealership. The car stalled on the highway and wouldn’t restart. I’m having it towed to the dealership. My daughter has the same engine and it did the same thing. KIA replaced her engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649761March 21, 2025
UNKNOWN OR OTHER
The paint on my Kia optima is coming off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649485March 20, 2025
ENGINE, UNKNOWN OR OTHER, FUEL/PROPULSION SYSTEM
After an oil change and spark plugs drove 3 miles and now car will not drive code is Manifold p0106 need this fixed dealer cannot determine issue Car is at Nalley Kia in Stonecrest GA
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649251March 19, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2018 Kia Optima. The contact stated that while driving 65 MPH, the check engine warning light illuminated, and the vehicle shuddered and stalled. The contact was able to pull over to the side of the road. The vehicle was able to restart but was shuddering significantly. The vehicle was towed to the dealer, where it was diagnosed with a fractured valve in cylinder #1. The dealer determined that the engine needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was notified of the failure and confirmed that the maintenance records of the vehicle were satisfactory; however, the manufacturer denied assistance and informed the contact that the failure was not a factory defect but was due to wear and tear. The failure mileage was approximately 109,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648706March 17, 2025
ENGINE
Vehicle has been burning oil excessively for the last 3 years until engine finally went out
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648736March 17, 2025
ENGINE
1.) What component or system failed or malfunctioned? Engine failure due to excessive oil consumption and/or a malfunctioning Knock Sensor Detection System (KSDS). •The engine failed at only 50,000 miles due to internal issues. •The KSDS system triggered a flashing check engine light, but Kia refuses to cover the repair despite known past issues. •Kia engineers and the dealership confirmed the engine failure but are denying warranty coverage. ➡ The vehicle is currently at the dealership and available for inspection. 2.) How was your safety or the safety of others put at risk? •A flashing check engine light appeared, indicating possible catastrophic engine failure while driving. •Loss of engine function on the road could have led to an accident. •The KSDS system was designed to prevent this type of failure, but it failed to stop the damage in time. •If the engine had completely failed at highway speeds, it could have created a dangerous situation. 3.) Has the problem been reproduced or confirmed by a dealer or independent service center? ✅ Yes, the issue was confirmed by the Kia dealership. •The dealership confirmed that the engine has failed and needs to be replaced. •A tech line case was opened with Kia engineers, who confirmed the failure. •Kia refuses to cover the repair, claiming it is a "top-end failure" instead of a "rod bearing failure." 4️.) Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? ✅ Yes, it was inspected by the Kia dealership and Kia engineers. •A tech line case was created, and Kia engineers reviewed the issue. •Kia admitted that the engine failed but refused to cover the repair under warranty. 5.) Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? ✅ Yes, a flashing check engine light appeared due to the Knock Sensor Detection System (KSDS). •The same warning code had previously appeared while
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648888March 17, 2025
ENGINE
I bought this car for 6000$ in the month of November. I checked everything while buying the car. I did checked the oil level the engine sound its condition and transmission. I did the oil change myself after buying and once in the middle. Suddenly on Feb 16th it got stopped on the middle of the highway. After lot research I see there are thousands of complaints for the kia optima’s and Hyundai Sonata’s for their failure GDI Engines. I towed to dealership whether they could help replacing engine. They haven’t. I see there are no recalls on this car. I would like to complain regarding this incident and justice should be provided to me
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648359March 14, 2025
ENGINE
The contact owns a 2013 Kia Optima. The contact stated that while driving approximately 40 MPH when they suddenly heard a loud boom noise and the front end of the vehicle caught on fire. The contact pulled into a nearby parking lot and all passengers exited the vehicle. The vehicle was consumed by the fire which was put out by the fire department. The vehicle was towed and totaled. There were no injuries or need for medical assistance. The fire department filed a report. There were no injuries or need for medical assistance. The dealer was contacted and informed of the failure. The vehicle was not taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was 187,000.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11648033March 13, 2025
STEERING
Steering is clicking when turned from side to side. Also steering wheel shakes when coming to a stop or going over bumps. Checked with several people, including a service manager at Roseville Kia. The MDPS Flexible coupler needs replacing. They confirm its an ongoing problem. See Kia Technical Service Bulletin: MDPS FLEXIBLE COUPLING REPLACEMENT CUTOMER SATISFACTION PROGRAM (CS 1604). I spoke with Kia customer service and they refused to repair under warranty.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648154March 13, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2012 Kia Optima. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed and determined that the fuel pump module had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 162,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647921March 12, 2025
STEERING
The contact owns a 2012 Kia Optima. The contact stated that while driving at various speeds on several occasions and making a turn, there was a loud popping sound coming from the steering column and the wheels. Additionally, while attempting to shift into reverse, there was a popping sound coming from the steering column and floorboard. A mobile mechanic went to the residence where the vehicle was parked and stated that the failure might be associated with the steering column. The vehicle was not repaired. The vehicle was taken to a parts store where a handheld diagnostic scanner retrieved a fault code for steering wheel angle sensor signal failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 202,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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