Knocking noise coming from engine. Pulley is wobbly. Oil leak coming from timing cover. Knocking noise come from Connecting rod knocking. Engine will have to be replaced or rebuilt.

- Cave Creek, AZ, USA

The contact owns a 2015 Kia Optima. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. Several unknown warning lights were illuminated. The vehicle failed to restart and was towed to the residence. The contact who is an independent mechanic, diagnosed the vehicle and determined that the engine seized. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 129,000.

- Fresno, CA, USA

2015 Kia Optima. Consumer writes in regard to engine failure. The consumer stated the engine seized after four months of purchasing the vehicle. And there is an unaddressed/open recall that was never repaired.

- Tacoma, WA, USA

The contact owns a 2015 Kia Optima. The contact stated that while driving approximately 70 MPH and taking the off ramp, the vehicle stalled. There were no warning lights illuminated. The vehicle was towed to his fiancé's residence. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 81,000.

- Brookhaven, GA, USA

On December 14 2022 I had my oil changed at a service center. On December 14 2022 later in the day after the oil change service had been completed my vehicle vehicle began to sputter then stalled while driving down the road almost creating an accident. There were no warning lamps messages or other symptoms prior to stalling on the road. As the vehicle began sputtering and stalling the warning lamps then became illuminated. I coasted my vehicle to safety and parked it. I scheduled the first available appointment with a Kia dealership and had it towed in. They did an inspection completed a recall and said I needed a whole new engine and only the short block was covered. I have service records for regular maintenance. I have contact the dealership and manufacturer with a response that the engine replacement is not currently covered at this time. I believe that if the vehicle was at a higher speed or more traffic was present that the engine failure could have caused serious injury or fatalities. My vehicle is available for inspection if requested. My vehicle is still located at the Kia dealership. I currently do not have an invoice or paper receipt from them. I do have an email from the dealership stating a new engine cost before taxes. I am unable to upload the file on this page for some reason. I can make it available if needed.

- Spanaway, WA, USA

The contact owns a 2015 Kia Optima. The contact stated that while driving at various speeds, a ticking noise was heard coming from the engine. No warning lights were illuminated. The contact also stated that while driving at an undisclosed speed, the vehicle lost motive power and was unable to restart. The vehicle was taken to a local dealer; however, the failure could not be duplicated. The vehicle was not repaired and was towed back to the residence. The contact stated that the failure recurred and that the "Service Engine Soon" warning light was illuminated. The contact received notification of NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic). The vehicle was then taken back to the dealer for the recall repair and was diagnosed that the engine needed to be replaced. The vehicle remained at the dealer awaiting the repairs. The manufacturer was made aware of the failure and informed the contact that the warranty had expired. The failure mileage was 106,744.

- Saint Louis, MO, USA

On 1 30-30 2023 my vehicle spun a rod bearing no engine light came on no oil light alert. I have a lifetime warranty & I'm just learning of a recall NHTSA SAFETY ID# 21V331000, to which I did not receive any notifications or recall notices

- Hemet, CA, USA

The contact owns a 2015 Kia Optima. The contact stated while driving at an undisclosed speed, there was smoke coming from the engine compartment. Additionally, the vehicle made knocking sounds while driving. The vehicle was towed to the dealer, where it was diagnosed that the engine needed to be replaced; however, the dealer declined the engine replacement due to the vehicle not having the Knock Sensor Detection System (KSDS) product improvement campaign performed. The vehicle was not repaired and remained at the dealer. The contact stated that she had not yet received notification of the Knock Sensor Detection System (KSDS) product improvement campaign. The manufacturer was made aware of the failure and informed the contact that the KSDS product improvement campaign had expired. The failure mileage was 174,811.

- Carthage, TX, USA

The contact owns a 2015 Kia Optima. The contact stated while driving from a complete stop, there was smoke coming out from underneath the hood of the vehicle. The check engine warning light was illuminated. The contact veered to the side of the road. The vehicle was towed to an independent mechanic, where the radiator and the radiator hose were replaced; however, while driving two and a half weeks later, the vehicle stalled, and the steering wheel seized. The contact was able to veer to the side of the road by using physical strength to steer the vehicle. The vehicle was towed to the independent mechanic, where it was diagnosed that the failure was related to an unknown recall. The vehicle was towed the dealer, where the engine was replaced; however, the engine smoked while driving. The vehicle was towed to the dealer where the engine was replaced for a second time; however, the engine was incompatible with the turbocharger in the vehicle. The dealer informed the contact that she had to pay out-of-pocket to repair the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 111,000.

- Lilburn, GA, USA

The contact owns a 2015 Kia Optima. The contact stated that while starting the vehicle, the engine turned over but then the engine seized. There was an abnormal knocking sound previously detected. There were no warning lights illuminated. The vehicle was towed to the local dealer but was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 80,000.

- Lake Charles, LA, USA

Anti Theft Security system is non-existent. There is a current known issue on the internet on the ease of theft of any Kia or Hyundai to certain years of manufacture. I am currently a single disabled person that could be a victim of vehicle theft because of a lack of this security software that Kia did not include on my 2015 vehicle. This Kia/Hyundai known issue could potentially leave anyone stranded in a dangerous situation. All other prior and current vehicles are equipped with the security software. Currently Kia & Hyundai has provided Lock bars for certain police departments to hand out, however.. not in my area. I am receiving warning letters from my Insurance company and have heard of some totally dropping coverages on all vehicles manufactured without the security software. This is a very dangerous situation and I believe that ALL VEHICLES AFFECTED SHOULD BE ISSUED AN IMMEDIATE RECALL AND SOFTWARE UPDATE PROVIDED BY THE MANUFACTURERS AT NO COST TO CURRENT OWNERS OF THESE DEFECTIVE VEHICLES. A proposed class action lawsuit was started in September 2022. In the meantime.. what happens to innocent people who go to a grocery store or doctors office only to find that their car had been stolen while they were inside" Or what happens when they can no longer receive insurance coverage because of the ease of this known lack of security originally promised from the manufacturer" These particular Kia/Hyundai's are missing a "key" anti-theft device..their keys lack computer chips for theft "immobilizer" systems that other car manufacturers have as a standard theft deterrant during those same years of manufacture & currently have on all new vehicles. A MANDATORY RECALL FOR REPAIR SHOULD BE ISSUED IMMEDIATELY BEFORE ALL INSURANCE COMPANIES REFUSE TO INSURE THESE VEHICLES! Anti-Theft technology was included on the sticker price but not installed! I am afraid to go to the grocery store!!

- Sebring, FL, USA

The contact owns a 2015 Kia Optima. The contact stated that while driving at various speeds, the vehicle hesitated and stalled upon depression of the accelerator pedal. The vehicle was towed to a local dealer where it was diagnosed with engine failure. The vehicle remained in dealer possession for months as the contact awaited the repair. The manufacturer was notified and informed her that since a prior service was not performed on the vehicle, she no longer qualified for the repair. The vehicle was not repaired. The failure mileage was 129,000.

- Wilson, NC, USA

While driving the vehicle on Tuesday 1/17/23 giving it gas, the engine stopped running. I was going about 45 mph when the engine stopped, multiple lights on the dash turned on including the engine light, oil light, and battery light. I had to coast the car to the side of a 3 lane road. I turned off the car, waited a few moments and tried to turn the car on. The lights went on but the engine did not start. I had the car towed to an auto shop who then advised I should have it taken to a Kia dealer as there is a recall on the vehicle. The dealer has had the car for a week and has only said that the engine is seized and that they can not provide more information without me paying to have the engine taken apart.

- Clermont , FL, USA

Driving down the road and suddenly there was loud knocking and smoke coming from under the hood and got it to the side of the road and turned it off and now it won't crank. The dash lights come on when you turn the key and that's all it will do. No noises at all.

- Kellyton , AL, USA

The contact owns a 2015 Kia Optima. The contact stated while driving 65 MPH, the vehicle stalled. The contact stated that several unknown warning lights were illuminated. The contact was able to cruise to the side of the road. The vehicle was not drivable. The contact towed the vehicle to an independent mechanic and was informed that the engine needed to be replaced. The vehicle was not repaired. The contact towed the vehicle to the local dealer to be diagnosed. The dealer confirmed that the engine needed to be replaced. The vehicle was not repaired. The VIN was associated with NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic). The manufacturer had not been informed of the failure. The failure mileage was approximately 130,000.

- Morristown, NJ, USA

Engine seized on the car and I was denied recall repair. I spoke with corporate for Kia and they basically did nothing to help at all. They basically said they sent a letter for an update and because I did not perform the update they will not honor the recall that was approved on my car. The person I spoke with advised the address was never updated so the letter did not come to me for the recall or was lost. He stated I was supposed to contact Kia with update to address. I never was aware this had to be done and I have purchased many cars and never was made aware. He stated why would you purchase a big purchase and not do this. I was under the impression when I purchased this would be done that-??s why I am charged tax license and other fees. I believe this is predatory and this is just a way to not honor the recalled engine that I purchased. The check engine light never illuminated on the dash or any indication the engine had an issue so I had no reason to take my car in for a repair. To add to that my fiancé had a 2013 and the recall letter was received and he took his car for update and the car never worked after the update was performed. Kia denied any repairs to that vehicle and basically took a lost because of the update. I would like some type of resolution to this issue. The car has 113000 miles of course the original warranty was 100000. This update was during pandemic as well. I am very disappointed in Kia at this point because there should be something in place for people like me who never received notice. The engine is no good and we as customers should not have to take this lost. Please help

- Perris , CA, USA

I purchased a kia turbo optima from bob's lamphere's beaverton oregon kia dealership 9 days later I felt the acceleration awkwardly bi wanted to return it or exchange but was told no contract was only within 5 days. I took it to kia dealership for diagnostic 3 times I had it for 9 months the last 6 weeks was the 3rd time until Feb 28th It was totaled by a uninsured motorist memes william benton penny lll Or. Driver lic# 1289466 Of 1633 n.e. 76th portland oregon 97213 he was speeding illegally bypassing on a bridge into on coming traffic which was me he ending totally the back end of my kia. No air bags deployed I had no airbag warning light on I suffer injuries whiplash in my neck shoulder and back to this day Wild willy seemed to have injured his leg to the point of amputation... Portland police report# 21-54465 which is the report that wild willy gave a false identity. Later the officer text giving his real identity. To this day I haven't been compensated for bodily or auto damageby wild willy or Geico my insurance. And lost my kia in a junk yard with a remaining of a bill of 12,000 of 25,500.

- Portland, OR, USA

My vehicle is in the class action lawsuit against KIA for faulty engine blocks that could cause fire and engine failure. My vehicle oil consumption is way below standard and the excess burning oil is coming inside my engine on top. I see smoke and I smell burning oil on my engine while I-??m driving and when I stop. I have well kept my cars maintenance and this is now starting to happen after 120k miles. I reported the issue to Kia but they told me that the engine has to lock up before they can either consider replacing it. I-??m really afraid to drive this car because of my life and the life of others if I get a fire or engine failure in busy traffic. It just doesn-??t seem safe to drive although there-??s no check engine lights on yet, but I can sense warnings before destruction. Please help !!

- Haines City, FL, USA

I was driving down the highway and veered onto a secondary road when the engine shut off. No prior warning was given and the check engine light was not on. I was forced to stop the vehicle; there was no shoulder to pull onto, so I ended up blocking a lane of traffic. The engine seized and must be replaced, or the car will have to be scrapped.

- Caledonia, MS, USA

On the behalf of my daughter I am filing this formal complaint: * On August 10, 2022 my daughter was driving home from Des Moines to Cedar Rapids, Iowa. She was on the highway and all of the sudden her car engine shut down, no warning lights came on prior to this happening. She did not have power steering, it took all she had to pull the car over safely, she was able to use the brakes but barely. She then tried to restart the vehicle, it was able to restart with no other problems along the way. This incident happened at 2am, had this occured earlier in the day, with heavy traffic the safety of my daughter and others would have been at a high risk, this could have caused a major accident. * On October 9, 2022 My daughter was just exiting the interstate, warning light appeared. She was approaching her home, not far from the highway, when the car engine shut down once again but this time it would not restart. The vehicle remains undrivable but is available for inspection upon request. * On October 10, 2022 I sent my step-father over to her house to take a look at her car. From his findings he stated that the oil plug was loose and that the oil had drained out. * On August 2, 2022 She had an oil change done at Jiffy Lube (Cedar Rapids, Ia.) I filed a complaint assuming that they did not properly tighten the oil plug. The manager from Jiffy Lube informed me that an investigation is in motion at this time for Kia (2005-2020) and Hyundai's due to oil plugs loosening and engines ramdomly shutting down at highway speeds. At this time I am strongly advising a thorough investigation into this matter. Thank you for your time.

- Cedar Rapids, IA, USA