The contact owns a 2021 Kia Sportage. The contact stated that after an oil change, while leaving the dealer and driving 55 MPH, there was an abnormal sound coming from the engine. The contact pulled over to the right side of the road, exited the vehicle, lifted the hood, and checked the oil dipstick and became aware that there was no oil on the dipstick. Since the failure, oil had been added to the engine three times. A dealer was contacted. The manufacturer was notified of the failure, opened a case, and informed the contact that the vehicle was out of warranty. The approximate failure mileage was 103,916.
2021 Kia Sportage engine problems
29 complaints (54% of all complaints for this car). Typical mileage when it fails: 70,000.
- owner complaints
- 29
- of this car's complaints
- 54%
- typical mileage
- 70,000
- crashes
- 0
- recalls
- 0
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Kia Sportage engine problems in other years
Specific symptoms reported on the 2021 Kia Sportage engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Loss of Motive Power
the federal safety agency received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitionersâ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODIâs evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to the federal safety agency which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing. Â There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in the federal safety agency's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, the federal safety agency does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing the federal safety agencyâs reasons for denial of the petition will be published. The reference numbers for the complaints to the federal safety agency cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to
DP22003
What 2021 Kia Sportage owners say
Most recent owner complaints, unedited.
My 2021 Kia Sportage is in Limp Mode at 2,000 RPM, and my mechanic confirmed it has the P1326 Knock Sensor code stored. Vin [XXX]. I need to see if my car can be added to the list of vehicles regarding the product improvement campaign PI2002A. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The Kia never showed an engine light error or gave a code stating there was a problem. We Change the oil every 3000 miles. There was no oil on the dip stick and the oil was extremely low. The engine seized up today.
See attached document for complaint.
The hose connected on the antifreeze leak into the engine compartment
On June 14, 2026, the driver experienced sudden rough engine running followed immediately by a flashing check engine light. The vehicle was towed to the selling dealer, which has performed all prior maintenance. The vehicle is currently at the dealership and available for inspection. Technician notes show DTC P1326 was stored — the Knock Sensor Detection System code associated with connecting rod bearing wear on Kia's Theta II engine family. The technician performed an audible knock check only (none heard) and cleared the code. The vehicle was found approximately 2.5 quarts low on oil due to an internal turbo oil leak. The dealer's notes state the code "may be related" to low oil — hedged language, not confirmed causation. The dealer confirmed the turbo failure but has not performed a bearing clearance test to confirm or rule out bearing damage from the low oil condition. The dealer performed a turbocharger replacement. Despite a verbal commitment from the service manager that a bearing clearance test would follow, no such test was performed 40 days later. When the vehicle was declared ready, the service manager did not recall the commitment and suggested driving 40-50 miles as an alternative. Kia America opened a formal case last month and authorized a partial goodwill adjustment but no one has addressed the safety concern of the unperformed engine test indicated by the thrown code. Driving a vehicle with potential connecting rod bearing wear risks catastrophic engine failure, creating a serious safety hazard. This vehicle has a documented history of oil consumption prior to this incident. The engine has not been cleared for bearing damage following a significant low oil event and a stored P1326 code.
The contact owns a 2021 Kia Sportage. The contact stated that while driving at undisclosed speeds, the drain plug detached, and oil started leaking from the oil pan. The accelerator was depressed, but the vehicle failed to move and stalled while driving on the highway. The vehicle failed to restart. The oil light illuminated after the failure. The vehicle was towed to an independent mechanic who determined the oil cap had detached. The mechanic informed the contact that the vehicle was difficult to start. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.
While I was driving in the interstate my car when in limp mode while I was trying to pass a semi. I had my children in the car and was stranded on the side of the road. No warning lights ever came on before hand. My mechanic said it was a problem with my engine and it’s common in Kia’s in but doe not include my year. It’s a costly repair for a car that’s not even 5 years old.
Loosing oil constantly. Always on the low end. I am having to keep oil in my car to put in it when needed which is often.
The engine in my 2021 Kia Sportage failed while being driven at highway speeds on US 131 in Michigan. The car was taken to the closest gas station where the oil was checked and it was determined that 5 quarts were needed to reach the dipstick's full line. The fact that the car had consumed 5 quarts of oil seems to be a major safety concern. I've attached a note with additional information that has also been submitted to Kia; a case number has been provided. However, after several weeks, there hasn't been any progress. I haven't even been able to get Kia to provide information as to the fundamental root cause of the engine failure.
Questions about the 2021 Kia Sportage engine
Does the 2021 Kia Sportage have engine problems?
Owners have filed 29 complaints about the engine of the 2021 Kia Sportage, 54% of all its complaints, more than any other problem.
At what mileage do 2021 Kia Sportage engine problems start?
The typical (median) mileage in owner complaints is 70,000 miles.
Was there a recall on the 2021 Kia Sportage engine?
There is no recall for this problem on this model year.
What year does the Kia Sportage have bad engine?
The Kia Sportage model years with the most engine complaints are 2012 (330 complaints), 2013 (313 complaints) and 2017 (230 complaints).
Other 2021 Kia Sportage problems
Electrical 6Transmission 4Visibility 3Fuel system 2Lights 2Acceleration 1Airbags 1Body 1Driver assistance 1
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