NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
43 reportsClear category filter71,707 miles · Aug 20, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The contact stated that while driving at an undisclosed speed and turning into the driveway, the check engine warning light illuminated, and the vehicle stalled. The vehicle was towed to the dealer, and there was no oil in the engine, and metal flakes were found in the camshaft. The contact a…
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated that while driving at an undisclosed speed and turning into the driveway, the check engine warning light illuminated, and the vehicle stalled. The vehicle was towed to the dealer, and there was no oil in the engine, and metal flakes were found in the camshaft. The contact associated the failure with NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the VIN was not included. The dealer diagnosed the vehicle with camshaft failure, timing failure and recommended that the engine be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 71,707.
NHTSA ODI #11758348
120,000 miles · Aug 5, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The contact stated that while driving at 45 mph the engine experienced a complete loss of automotive power, and no warning lights were illuminated. The vehicle was towed to a local dealer where it was diagnosed and the contact was advised that the engine was faulty and needed to be replaced. T…
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated that while driving at 45 mph the engine experienced a complete loss of automotive power, and no warning lights were illuminated. The vehicle was towed to a local dealer where it was diagnosed and the contact was advised that the engine was faulty and needed to be replaced. The contact associated the failure with NHTSA Campaign Number : 25V099000 (ENGINE AND ENGINE COOLING). The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 120,000.
NHTSA ODI #11755100
77,500 miles · Jul 30, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle with the check engine warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The vehicle was taken to the de…
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle with the check engine warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The vehicle was taken to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact was informed that while the technician was attempting to start the vehicle, the engine seized, and the contact was informed that the failure was not associated with the recall. The manufacturer was made aware of the failure, and a case was filed. The vehicle was scheduled for a diagnostic test at the dealer. The failure mileage was approximately 77,500.
NHTSA ODI #11753695
96,070 miles · Jul 16, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The contact stated that while driving uphill at 45 MPH, the check engine warning light illuminated. The contact attempted to pull over, and the vehicle experienced engine failure. An independent mechanic or dealer was not contacted. The vehicle was not taken to an independent mechanic or deale…
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated that while driving uphill at 45 MPH, the check engine warning light illuminated. The contact attempted to pull over, and the vehicle experienced engine failure. An independent mechanic or dealer was not contacted. The vehicle was not taken to an independent mechanic or dealer to be diagnosed. The contact checked the oil, and there was no oil on the dipstick even though the vehicle had received an oil change two months earlier. The contact called a friend to top off the engine oil. The manufacturer was notified of the failure and informed the contact that there was no recall associated with the VIN. The contact was informed that the vehicle had been repaired in 2021 before owning the vehicle. The approximate failure mileage was 96,070.
NHTSA ODI #11750929
106,000 miles · Jun 17, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The contact stated that the vehicle was intermittently overheating and losing motive power while driving. The contact stated that the vehicle failed to accelerate properly. The vehicle was taken to an independent mechanic, where the spark plugs and ignition coil packs were replaced; however, t…
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated that the vehicle was intermittently overheating and losing motive power while driving. The contact stated that the vehicle failed to accelerate properly. The vehicle was taken to an independent mechanic, where the spark plugs and ignition coil packs were replaced; however, the failure persisted. The contact returned the vehicle to an independent mechanic and was informed that the catalytic converter needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 106,000.
NHTSA ODI #11744878
60,000 miles · May 20, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The contact stated while driving at an undisclosed speed, the contact noticed an unusual knocking sound and the engine seized. In addition, several warning lights were illuminated. The contact stated that while attempting to start the vehicle, the vehicle started. The contact inspected the veh…
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated while driving at an undisclosed speed, the contact noticed an unusual knocking sound and the engine seized. In addition, several warning lights were illuminated. The contact stated that while attempting to start the vehicle, the vehicle started. The contact inspected the vehicle and noticed that the oil was three quarts low. The contact stated that the vehicle was scheduled for a service appointment for an oil change the following week. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 60,000.
NHTSA ODI #11739126
100,000 miles · Mar 16, 2026
EngineEngine And Engine CoolingFire
The contact owns a 2021 Kia Seltos. The contact stated that while driving at 50 MPH, there was white smoke coming from the engine, before the engine caught on fire. After the failure, several unknown warning lights illuminated. The contact was able to pull over safely. The fire was extinguished independently. There were no repor…
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated that while driving at 50 MPH, there was white smoke coming from the engine, before the engine caught on fire. After the failure, several unknown warning lights illuminated. The contact was able to pull over safely. The fire was extinguished independently. There were no reported injuries. The contact stated that the failure was related to NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The vehicle was towed to the local dealer, where it was diagnosed and determined that the engine was scorched and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 100,000.
NHTSA ODI #11724618
148,000 miles · Mar 6, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The contact stated that while driving approximately 35 MPH, the vehicle started to lose motive power. The contact stated that the brake pedal was depressed to stop the vehicle, and the vehicle stalled. There was no warning light illuminated. The vehicle was towed to an independent mechanic, an…
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated that while driving approximately 35 MPH, the vehicle started to lose motive power. The contact stated that the brake pedal was depressed to stop the vehicle, and the vehicle stalled. There was no warning light illuminated. The vehicle was towed to an independent mechanic, and the contact was informed that there was an open recall for the engine and to take the vehicle to a dealer. The contact was informed of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The vehicle was towed to a local dealer, and the contact was informed that the engine had seized, and it was unknown if the recall was related to the failure. The vehicle was not repaired. The manufacturer was informed of the failure and advised the contact that the engine would not be replaced. The failure mileage was approximately 148,000.
NHTSA ODI #11722508
72,000 miles · Feb 26, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The contact stated that while driving 65 MPH up a slight hill, the vehicle shuddered significantly and failed to accelerate upon depression of the accelerator pedal. The check engine warning light then started flashing. The driver was able to pull over to the side of the road. The vehicle was …
Read full complaint
The contact owns a 2021 Kia Seltos. The contact stated that while driving 65 MPH up a slight hill, the vehicle shuddered significantly and failed to accelerate upon depression of the accelerator pedal. The check engine warning light then started flashing. The driver was able to pull over to the side of the road. The vehicle was taken to Hamlin Automotive on several occasions. The mechanic replaced 4 spark plugs, oil piston rings, and the camshaft; however, the failure persisted. The mechanic advised the contact that the failure might be related to the fuel injectors. Additionally, the mechanic had informed the contact that the vehicle might be experiencing excessive oil consumption. The contact received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling), and the vehicle was taken to the dealer for recall repair; however, the contact was informed that no issue was found upon inspection of the vehicle. The contact stated that while driving at 65 MPH, the check engine warning light started flashing. The driver pulled over to the side of the road. The vehicle was towed to the independent mechanic, where it was diagnosed and determined that the engine had failed and needed to be replaced. The vehicle was not yet repaired due to the cost. The contact related the failure to the recall. The manufacturer was contacted and referred the contact to the dealer for assistance. The failure mileage was approximately 72,000.
NHTSA ODI #11720746
110,000 miles · Feb 5, 2026
Engine And Engine Cooling
The contact owns a 2021 Kia Seltos. The vehicle was serviced under NHTSA Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING), but the failure occurred. While the contact's wife was stopped at a traffic light, the vehicle stalled. While the accelerator pedal was depressed, the vehicle lunged forward and then stalled. The conta…
Read full complaint
The contact owns a 2021 Kia Seltos. The vehicle was serviced under NHTSA Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING), but the failure occurred. While the contact's wife was stopped at a traffic light, the vehicle stalled. While the accelerator pedal was depressed, the vehicle lunged forward and then stalled. The contact's wife was able to coast to the side of the road. No warning lights were illuminated. The vehicle failed to restart. The vehicle was towed to the dealer, where it was determined that there was no oil in the engine, causing the exhaust pin to be sheared off the exhaust camshaft. The vehicle was not repaired. The dealer informed the contact that when the vehicle was serviced in August of 2025, the engine was inspected; however, the recall repair was not performed. There were no oil stains found on the ground, and there was no warning light illuminated, indicating that the oil level was low. The vehicle remained at the dealer unrepaired. The manufacturer was made aware of the failure and refused to perform the recall repair. The failure mileage was approximately 110,000.
NHTSA ODI #11715923
NHTSA investigations
1AQ25001 · Kia 25V099 Piston Oil Ring Recall Effectiveness
Opened Aug 6, 2025 · Closed Dec 18, 2025
Status: closed (inferred from source dates) · Engine And Engine Cooling:engine:hard Parts Internal/mechanical
On August 6, 2025, the Office of Defect Investigation (ODI) opened Audit Query (AQ) 25001 to assess the implementation of Kia America, Inc.’s (Kia) remedy program for Safety Recall 25V099, involving incorrectly manufactured piston oil rings which may damage the engine causing a loss of motive power or fire. This AQ was opened in response to consumer complaints alleging of an ineffective remedy, inconsistent inspection results to determine whether an engine replacement was needed, and the unavailability of recall remedies. On August 11, 2025, an Information Request (IR) was issued to Kia requesting: 1) why the inspection test was revised from requiring a ‘cold’ engine to a ‘warm’ engine; 2) why the recall remedy was suspended from April 30, 2025 to May 7, 2025; 3) how Kia notified customers of the recall remedy suspension and the need to re-test engines that failed the ‘cold’ engine test; 4) the number of post-recall remedy complaints alleging engine or other engine related failures; and 5) the warranty coverage Kia is offering to vehicles that passed either inspection tests. On September 10, 2025, Kia responded to NHTSA’s IR: Kia reported the change in temperature from ‘cold’ to ‘warm’ engine testing was done to increase accuracy. The inspection test uses diagnostic tools that detects abnormal engine vibrations to identify damaged engines. From the initial launch of the Technical Service Bulletin (TSB) on April 4, 2025 through April 28, 2025, ‘cold’ engine testing resulted in a higher-than-expected failure rate when compared to the pre-recall warranty claim rate. This discrepancy led Kia to re-evaluate its inspection test and found that performing the inspection on a ‘cold’ engine can result in imprecise test results due to normal cold-start vibrations. Kia revised the inspection to ‘warm’ engine testing to minimize vibration interference. Kia sampled the field and performed a comparative analysis between ‘cold’ and ‘warm’ engine testing, and validated that ‘warm’ engine testing was more accurate in identifying damaged engines. Kia also reported the suspension of the recall remedy was due to a software error in the diagnostic tool, which was introduced in concert with the April 29, 2025 launch of the TSB that revised the inspection from ‘cold’ to ‘warm’ engine testing. The software error resulted in all inspection tests reporting false positives for a damaged engine. On April 30, 2025, Kia suspended the remedy until May 7, 2025, which was when the software error was corrected with the release of the latest TSB and software update. The recall remedy remains available to eligible customers. Kia reported owners were not mailed letters concerning the suspension to the recall remedy. Kia reasoned since it resolved the issue faster than it would have taken to draft and mail letters, Kia did not want to create unnecessary customer confusion involving an issue that would have already been addressed upon receipt of a letter. Kia also determined that mailing letters about re-testing engines was unnecessary since those vehicles were already at the dealer awaiting engine replacement. In most instances, Kia Customer Care agents would respond to customer inquiries related to the recall, including remedy availability, dealer issues, and questions about differing test results. Kia provided ODI a review of engine related consumer complaints received on post recall-remedied vehicles. Kia did not find any common patterns or trends related to those complaints following completion of the recall, as the complaints included issues that were unrelated to the subject defect. To aid in the diagnosis of whether a complaint is related to the recall, the remedy includes the installation of a software program, the Piston-ring Noise Sensing System (PNSS), that monitors the engine for unusual noise patterns (an indicator of potential damage to the piston oil rings), and alerts the customer by flashing the check engine light and setting Diagnostic Trouble Code (DTC) P1327. Kia confirmed that it is not offering any specific warranty coverage for this recall. Instead, Kia has instructed dealers to replace the engine, at no cost to the customer, with no time or mileage limitation, following the installation of the PNSS software and the presence of DTC P1327. On September 4, 2025, Kia issued Subsequent Repair Action (SRA) # SC336YZ, which provided engine diagnosis and replacement instructions for vehicles with a potentially related complaint following completion of the recall. Under this SRA, customers whose vehicles set DTC P1327 will have their engine replaced. If DTC P1327 is not set and it is unclear whether the issue is related to the recall, dealers are instructed to contact Kia's Technical Assistance Center to ensure the issue is appropriately handled. Kia notes that any issues determined to be unrelated to the recall are subject to the 10-year / 100,000-mile Powertrain warranty for original purchasers and a 5-year / 60,000-mile Limited Basic Warranty for subsequent purchasers. In summary, Kia identified the insufficiencies of its initial inspection test that led to a pause to its recall campaign, explained why it did not mail letters to affected customers about the paused campaign or revised inspection test, reviewed existing consumer complaints that did not identify any potential trends related to the recall, and identified its warranty coverage for any vehicles exhibiting qualifying engine symptoms. After review of Kia’s response to the IR, ODI has determined that no further action from Kia is necessary at this time, and ODI will close this AQ investigation accordingly. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.