The contact owns a 2019 Kia Optima. The contact stated that while driving at an undisclosed speed, the oil pressure warning light illuminated. The contact stated that shortly afterwards, the check engine warning light illuminated, and the vehicle started losing motive power while attempting to accelerate. The contact stated that the vehicle was shuddering and jerking while driving. The contact also stated that the Forward Collision Avoidance sensors activated inadvertently while driving or the vehicle was parked. The vehicle was taken to a local dealer where it was diagnosed with excessive oil consumption and the contact was advised that the failure with the Forward Collision Avoidance sensors was the regular function of the vehicle. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 57,813.

- Whittier, CA, USA

Subject: Complaint Regarding Excessive Oil Consumption and Engine Hesitation in 2019 Kia Optima SX To Whom It May Concern, I am writing to formally lodge a complaint regarding my 2019 Kia Optima SX. Despite meticulous maintenance and care, I have been experiencing significant issues with the vehicle that are concerning, especially considering its relatively low mileage of only 107,000 miles. The primary issues are as follows: 1.Excessive Oil Consumption: My Kia Optima SX has been burning an excessive amount of oil, necessitating frequent top-offs well before the recommended oil change intervals. This is not only inconvenient but also raises serious concerns about the long-term health and reliability of the engine. 2.Engine Hesitation: The vehicle exhibits extreme hesitation during acceleration. This hesitation occurs sporadically, making it difficult to anticipate and presenting a potential safety hazard, especially when merging onto highways or attempting to overtake other vehicles. These issues are unacceptable for a vehicle with such low mileage and are not in line with the quality and reliability I expected when purchasing a Kia. Given the prevalence of similar complaints from other owners of the same model, it is evident that these are not isolated incidents but potentially indicative of broader manufacturing or design flaws. I urge the National Highway Traffic Safety Administration (NHTSA) to investigate these issues thoroughly. Owners of the 2019 Kia Optima SX should not have to endure such significant and potentially dangerous problems with their vehicles. Thank you for your attention to this matter. I look forward to your prompt action and response.

- Frostburg, MD, USA

My car was having to get the spark plugs once a month loosing oil. Lots of Oil is coming out through the exhaust my grandfather just saw it. I still owe 20,00 on this car. I was told by Kia I-??m going to need a new engine. I stopped driving

- North Aurora, IL, USA

I currently have 119500 miles on my 2019 Kia Optima. I am losing oil somewhere between oil changes, and the car is beginning to hesitate while driving. I don't see oil on the ground but I have had to put in 2-3 1/2 quarts of oil way too often. For this to happen on some many vehicles, it must be a manufacturer defect. The hesitation just started and I'm taking it do get a diagnostic test.

- Columbia , SC, USA

I am writing to bring to your attention a critical safety issue with my 2019 Kia Optima SX 2.0 GDI Turbo, which has accumulated approximately 103,000 miles. This vehicle has recently developed several serious problems that I believe pose significant risks to both my safety and the safety of other road users. Firstly, my Kia Optima has been burning an excessive amount of oil. Specifically, it consumes over 5 quarts of oil within just 2,000 miles of driving. Despite thorough inspections, even from Kia Dealers there are no visible oil leaks, making this issue even more perplexing and concerning. Moreover, the vehicle has begun to shake violently while driving on the highway, which has led to a substantial loss of power in the middle of traffic. This unpredictable loss of power is extremely dangerous, especially at high speeds, as it compromises my ability to maintain control of the vehicle and poses a significant hazard to other motorists. Additionally, the car now emits a loud knocking noise, which appears to be related to the engine's internal components. This issue further exacerbates the vehicle's performance problems and raises serious questions about its reliability and safety. I urge the NHTSA to investigate these issues promptly. The problems I am experiencing are not isolated and may affect other Kia Optima owners, potentially leading to widespread safety risks. I believe it is crucial to determine if there is a manufacturing defect or other underlying cause that needs to be addressed to prevent accidents and ensure the safety of all Kia Optima drivers. Thank you for your attention to this matter. I am hopeful that the NHTSA will take immediate action to investigate these serious safety concerns and provide a resolution to protect both myself and others.

- Frostburg, MD, USA

Burns through oil. I have to consistently have oil on hand. 107,000 miles and being told my year does not fall under getting a new engine falls on me to replace it. This is an issue that falls on the manufacturer. Please help

- Odessa , MO, USA

Gdi motor consumes a lot of oil

- Sharon , SC, USA

The contact owns a 2019 Kia Optima. The contact stated while the vehicle was parked, there was oil leaking from underneath the hood. The vehicle was taken to an independent mechanic where the oil was changed; however, the failure recurred. The dealer was not contacted. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,008.

- Shreveport, LA, USA

The engine is consuming oil very fast and needing oil way before the next oil change. The oil consumption test Kia did stated that it was 2 quarts low after the first 1000 miles. Car does not have extended warranty but this a manufacturing defect. Suggestion was new motor. Also it's recall for the forward collision safety feature but my car vin is not included even though it goes off when nothing is in front of me. They want me to pay for these issues the motor cost the same as the payoff of car. This is ridiculous, I purchased Kia due to having a older model that almost got 300,000 miles on it before transmission died. I got a great payment and a newer car but didn't expect to have this motor issue or safety problem with no help from manufacturer. I'm stuck keeping oil in car so it's burn out & cutting safety feature off so it stops breaking when nothing is in front me. Both of these issues or manufacturing defects and should be fixed by KIA.

- Central, SC, USA

2019 Optima EX excessive oil consumption. Oil changed every 3000 miles, but is always empty within 1000miles. Car has 101,000 miles. Took to Kia dealership due to loss of power on acceleration and stalling and excessive oil consumption, they said I have multiple misfires on cylinder 1, excessive sludge buildup under cap and again no oil present. I was advised the engine needed replaced and that somehow this is a me problem and not a Kia problem. Spoke with Kia support and because it-??s 1,000 miles over warranty they will not do anything even though they are aware of excessive oil consumption issue in these motors

- Commerce, GA, USA

Engine is consuming extreme amounts of oil. I have never been late for an oil change, and often go before I-??m even due. My car was stalling and the RPM was fluctuating. I had to pull over and turn the car off. I then noticed my oil light on for 2 seconds, then it turned off. I-??m not due for an oil change for another 2,000 miles. I pulled in to a mechanic shop (thankfully I was right next door) and low and behold, hardly any oil in my car. Had maybe half a quart left. I should have been good for another 2,000 miles. This is not the first time this has happened either. I no longer feel comfortable driving myself or my kids in this vehicle. It has been nothing but constant worry about my engine dying, burning or stalling. This car only has 70,000 miles on it and only 4 1/2 years old!!!! This is the second incident of this car jerking and stalling on the highway. Thankfully I-??ve been able to pull over to avoid being slammed. I had the oil topped off so the engine could function, but once again, I was not due for a change.

- Ocean Springs , MS, USA

Was driving my vehicle when it started shaking violently and the check engine light came on. Took it to my mechanic and then it was towed to the Kia dealership. Both say that cylinder 2 won-??t hold compression due to leaking valves causing oil to flood the engine and the engine to not work properly. I was told I could drive it still but that the engine could seize at any time putting us at risk for an accident. Kia says this is not covered under the extended warranty, but I have had multiple mechanics say this is an issue with 2017 and newer Kia-??s and Hyundai-??s,

- Swisher, IA, USA

I like kids however I purchased a Kia used in 2021, I started to notice that all consumption was going out fast before oil changes was due. I still have this ongoing problem but they say there's no recall on these GDI motors however other people I see informs or experiencing the same issues. I now have to try to get an appointment with Kia for an oil change before it's time for the oil change and to do a oil consumption test and then hopefully the main factors or kia will replace this motor even though there's no warranty on the car. I might also have a issue with the front collision feature because I have been noticing in the past few weeks that this feature comes on even when there's no car in front of me it will start to break however it says that my car is not a part of a software upgrade so I got to ask them about that as well. There is definitely a issue with the GDI motors and Kia really needs to recall them all and replace the motors it should not burn all the way that it does I've never had any car of any brand or manufacturer burn oil the way that this car is burning oil. I cannot financially afford to go out here and trade this car in and get another car with the type of payment that I have for this car since I had my bank finances car.

- Central, SC, USA

No oil burning oil

- Pikeville, NC, USA

The car has been getting progressively rougher while driving and jerking when trying to accelerate. I checked the oil and it was nearly empty. There has been no sign of an oil leak even though I park in the same spot every single day.

- Norman, OK, USA

My car is burning oil when i drive & my oil is not lasting in my car, i have to get a oil change done every 2 weeks im not sure what-??s going on and im being told that there is no recall on my engine but i have others telling me that the GDI engines have recalls on them

- Richmond, VA, USA

Vehicle engine light on and oil burns out fast, car jerks and delay on starting

- Tinton Falls, NJ, USA

The second month after I purchased this vehicle the master warning light and forward collision light popped up and car vehicle started de-accelerating in the middle of the freeway and I had to pull over and then the car died. Repeatedly took my vehicle to the Kia dealership and no one still has been able to help me. They claim no one at their corp. Office in California what that means so it has been going off ever since and I don't want my vehicle to died again. PLEASE HELP!!!

- Dallas, TX, USA

The contact owns a 2019 Kia Optima. The contact stated that the vehicle was experiencing abnormal oil consumption. The vehicle was taken to the dealer, where an oil consumption test was performed, but the diagnostic test was inconclusive. The contact stated that the failure persisted, and the contact had been adding 3 quarts of oil every two weeks. The contact stated that the low oil pressure warning light illuminated, and the vehicle made an abnormal ticking sound coming from the engine. The dealer informed the contact that the manufacturer might not cover the repair unless the engine seized. The vehicle was not repaired. The manufactured was notified of the failure and a case was opened; however, no further assistance was provided. The failure mileage was approximately 65,000.

- Garland, TX, USA

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.

- Indianapolis, IN, USA