There are 15 owner-reported engine complaints for the 2021 Kia Sportagein NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Catastrophic fire started in fast food restaurant drive through, but able to drive to the parking lot before it became engulfed in flames.
smoke coming from the engine.
On March 4, 2026, the engine in my 2021 Kia Sportage malfunctioned while I was driving on a local road on Long Island, NY. The check engine light illuminated, the vehicle lost the ability to accelerate normally, and the steering wheel became heavy and difficult to turn at the same time. This created a serious safety risk, as I was unable to maneuver or accelerate normally and could have been stranded in an active roadway or unable to avoid a collision. The vehicle was able to restart but was towed as a precaution and transported to service. An independent repair shop examined the vehicle and identified the issue as an engine problem, advising that the repair should be covered by Kia. I delivered the vehicle to Kia Smithtown, an authorized Kia dealership, on March 9, 2026. As of today, the dealership has had the vehicle for approximately six weeks and has not yet completed a formal diagnosis or begun the repair, and no loaner vehicle has been provided. No police or insurance inspection has occurred. The check engine light first appeared at the moment of the failure on March 4, 2026; there were no clear warning symptoms prior to that. The vehicle remains in the possession of Kia Smithtown and is available for inspection.
I am filing a complaint regarding a 2021 Kia Sportage that experienced catastrophic engine failure, leaving the vehicle non-drivable despite regular maintenance and documented oil changes. I brought the vehicle to an authorized Kia dealership, located at 402 NJ-35, Keyport, NJ 07735, for evaluation. On or about March 17, 2026, I was informed by the dealership that coverage for engine replacement had been denied. At that time, I was not provided with a clear or sufficient explanation for the denial. Due to the lack of explanation and assistance, I escalated the matter to Kia corporate and was assigned a case manager. On March 30, 2026, I was contacted by my assigned case worker from Kia corporate, Marcia, who confirmed that my request for engine replacement remained denied. Again, no specific or sufficient explanation for the denial was provided, despite my attempts to obtain clarification. I made multiple efforts to understand the reason for the denial and to resolve the issue directly with both the dealership and Kia corporate. Despite these efforts, I was not offered a reasonable solution, nor was meaningful assistance provided. The vehicle ultimately stalled out in the middle of a highway. As a result, I am now left with a non-drivable vehicle and a significant financial burden, including an outstanding loan balance on a vehicle that cannot be used. I am also aware that there have been reported concerns, recalls, and investigations involving engine issues in certain Kia vehicles. While I understand each case is reviewed individually, this raises concern that my situation may not be an isolated incident and warrants further review. I believe this outcome is unfair given my documented maintenance history and the severity of the engine failure. I am requesting assistance in obtaining a fair resolution, including reconsideration of the denial and/or financial assistance toward the cost of engine replacement.
I was driving only going around 35 miles and the car went from no check engine light to flashing check engine light I had it taken to a show and was told the rod bears where grinding away and putting metal in the oil which is what the 2017-2019 model of the engines had the same problem
I have experienced chronic and excessive engine oil consumption in my 2021 Kia Sportage S with the 2.4 L Theta II engine. Since around 80,000 miles, I have had to add oil every 2 weeks between oil changes to prevent the engine from running low. My vehicle now requires a complete engine replacement, estimated at $10,000. Despite regular maintenance and oil changes (documented by Express Oil Change in Pinson, AL, with service records at 81,520 mi, 88,215 mi, 94,153 mi, 96,970 mi, 98,902 mi, 101,522 mi, and 105,273 mi), the vehicle continues to lose oil rapidly. Kia and my dealer have confirmed there are no recalls or warranty campaigns for my VIN, even though this issue is identical to the well-documented engine defect affecting earlier Kia models covered under the Theta II engine settlement. This defect creates a serious safety risk, as the engine can run dangerously low on oil between services, leading to engine failure or stalling while driving. I am currently out of work recovering from surgery and cannot afford the $10,000 repair. I am requesting that NHTSA investigate and expand the existing Kia engine defect recalls to include 2021 Sportage models using this engine.
The contact owns a 2021 Kia Sportage. The contact stated that her mother was driving at an undisclosed speed on the freeway and had stopped on the shoulder of the road to access the navigation system. The contact stated that after the driver shifted to park(P), the driver noticed smoke. The contact's grand-mother who was also occupying the vehicle advised the driver that the smoke was coming from underneath the hood. The driver then noticed that smoke and flames were coming from underneath the hood of the vehicle. The contact stated that the vehicle burned to the ground. The fire department was called to the scene and extinguished the fire. It was unknown whether a fire department report and a police report were filed. The vehicle was towed to an unknown location and was in the process of being inspected by the insurance company adjuster. Both the contact's mother and grand-mother later received medical assistance for smoke inhalation. The cause of the fire was not determined. The manufacturer and local dealer were not yet contacted. The failure mileage was approximately 70,000.
The contact owns a 2021 Kia Sportage. The contact stated that while his wife was driving at an undisclosed speed, the vehicle inadvertently lost motive power and was unable to accelerate. The contact's wife arrived at the destination where the failure persisted, prompting her to discontinue driving the vehicle. The check engine warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 117,000.
My car has been burning oil way too quickly! I got the 10,000 mile oil to see if it way maybe that and by 3,000 miles there was hardly any one in there! It is not leaking out! My oil is changed faithfully! And I heard there is a recall on some newer model Kia sportages! This is craziness! I take care of my vehicle stay up on all of the maintenance! I’ve read complaints on here and there are others having the same issue it isn’t just me!
The contact owns a 2021 Kia Sportage. The vehicle was taken to an independent mechanic for an oil change, and the contact was advised that the oil level was low. The contact stated there was no warning illuminated with the oil level being low. The contact was advised by the mechanic to check the oil level more frequently. The contact had recently checked the oil level and needed to add one quart of engine oil. The contact had not taken the vehicle to a dealer to be diagnosed. The contact researched online and related the oil consumption to a known failure with the engine installed in similar vehicles. The manufacturer was not informed of the failure. The failure mileage was approximately 41,000.
I had catastrophic engine failure driving down the road to work. Check engine light started flashing the the oil light. The car then shut off. Got it towed and they found two pieces of the engine block in the cradle cover.
Kia Sportage 2021- The service department at the dealership ran basic inspection of fault codes and found fault in system for knock sensor and camshaft b position sensor. These codes have relation to engine failure or possible timing chain failure. My safety was put at risk as I was driving down the highway and my car would not go over 40 miles per hour and cars were serving from hitting me from behind. Then my check engine light came on and started flashing. This information on my vehicle was looked at the dealership I purchased my vehicle, and they do not have the software/special tools to repair/replace timing components and vehicle was towed to Kia dealership. There was no warning lamps or symptoms that warned me before it happened. Once it wouldn’t go over 40 mph (wouldn’t accelerate) and my car light came on and blinking I pulled over.
The contact owns a 2021 Kia Sportage. The contact stated while driving at an undisclosed speed, the low oil light and engine warning lights illuminated. In addition, the contact stated that the vehicle had been consuming excessive engine oil. The vehicle was taken to an independent mechanic where it was diagnosed with a failed crankshaft and rocker arm. The contact was informed that the crankshaft and the rocker's arm needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000.
My vehicle is burning oil. In a little over 1500 miles after I get a oil change from the King Kia Dealership Service, my oil stick shows that the level of oil in my engine is none at all. When I check my oil, the stick, is absolutely dry. This has happened in the last 3 oil changes with my vehicle. There is no oil indicator light that comes on in the dash, but the oil stick is dry. Additionally, there is no indication of oil leaking from my car in my drive way. I will be returning to the King Kia dealer service for the third time on 10/13/25 for remedy of this situation. I contacted Kia Customer care and reported this situation and received a case number: [XXX]. I currently have 75,943 miles on my vehicle. To prevent engine damage, I've added quarts of oil to my vehicle to compensate but I'm most concerned that this oil is prematurely burning. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owned a 2021 Kia Sportage. The contact stated that upon pulling into a parking space on the third floor of a parking garage at her workplace, she smelled a strong burning odor. The contact also noticed smoke coming from underneath the driver's side of the hood. There were no warning lights illuminated. The contact turned off the vehicle and quickly exited it. The contact stated that the vehicle caught fire. The contact began to extinguish the fire with the assistance of sheriffs who used fire extinguishers until the fire department arrived and took over. There were no injuries sustained. A fire department report was filed. A police report was filed. The vehicle remained at the scene and was totaled. The dealer was notified of the failure. The manufacturer was notified of the failure and a case was opened. The contact was awaiting a call back from the manufacturer. The failure mileage was approximately 19,920.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026