483 of the
6,792 complaints filed about the KIA Sportage
are about the transmission —
7% of everything owners reported.
The worst model year for it is 1998.
483
Complaints
7%
Share of all complaints
20
Crashes
8
Fires
Transmission & Drivetrain complaints by model year
Purchased my Kia on the XXX then on the XXX, My engine light came on and my car went into Safety Mode . I at once took it to Auto Zone and their test came back with P1326 Knock signal range / performance. I then looked it up and found that a recall was put out quite a while back called an [XXX] # took my car to Kia Dealership in [XXX]. They said I could bring it in that was on the XXX and if an appointment came open they would check but they did not have an opening til the 14th which was today and I was told it would be next week . Could someone please send me updated information concerning the 2018 Kia Sportage and the Knock Sensor [XXX] [XXX] [XXX] [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11757330 — an unverified report by a vehicle owner.
I was driving the vehicle yesterday, had no problems and then when making a right hand turn the vehicle completely locked up. The brakes and steering column locked and the vehicle completely shut done. The dashboard lit up and the windows still worked but there was not power to the engine. Attempted to JUMP the car, unsuccessful, ultimately called a AAA who used a battery box and the car started. This happened once previously when the car was 6m-1year old and it spontaneously worked. I took for service told unclear what happened, no issues. The car gave no warning lights or indicators there was an issue. This was a very concerning and unsafe situation. I was in the middle of a busy intersection, making a right hand turn. again no warning or lights just vehicle shut down and unable to restart.
NHTSA complaint #11753463 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11752678 — an unverified report by a vehicle owner.
•12,000 Miles: Front rotors required complete replacement. •21,000 Miles: Front rotors failed and required replacement a second time. •28,000 Miles: Front seat cushion required repair due to material separation. •34,000 Miles: Front rotors failed and required replacement a third time. •51,000 Miles: Front rotors failed and required replacement a fourth time. •51,000 Miles: Complete transmission replacement required due to severe shifting difficulties.
NHTSA complaint #11748096 — an unverified report by a vehicle owner.
We were getting in our car to drive home from a restaurant. We attempted to start our car like any other day, and the car started. However, our car was stuck in gear, it was in parking but also not in parking. The car was not moving, the gear was in “park”, the dot light for park was not showing, and then we had several warnings appear on our dashboard. At first it was three, then it went to six (after turning off the car and restarting again)!! The car told us to put it in park, but we literally could not move the gear shift at all. We had: check speed limit system, check high beam assist, check driver attention warning, check blind spot safety system, check forward safety system, check rear cross-traffic safety system appear in 20 seconds of car being on. This car just hit ~15,500 miles on it. To add to the strangeness, we open the Kia Access App and tried “lock” and “unlock” (while being in the car”, then turn the car off. We started the car again and it worked as if this never happened (no immediate warnings like above). Yet we did recieve a check engine light and a vehicle diagnostic on the instrument (dashboard) saying “follow-up check required: 2 (Engine Management System and Transmission Control System.)” The car allowed itself to recognize it in park gear and drive off. The Kia Access app said we experienced a UOO01F0 code tied to the Engine Control System. We never seen anything like that before. We did, however, experience a problem with the driver seat powertrain at 11,000 miles where the seat wouldn’t move. The seat was fixed by the dealership though. We are going to take the car in to the dealership to see what they say.
NHTSA complaint #11746853 — an unverified report by a vehicle owner.
I was driving eastbound in my 2012 Kia Sportage on I-82 just past Benton City MP97 at about 11AM on Monday June 22, 2026, when my engine knocked twice, the red check engine light came on, and I lost power. I pulled over off the road next to a concrete barrier that was beside a rock roadcut. My flashers would not operate, I put it into park, turned off the ignition and immediately noticed the smell of burning oil or rubber. I had 2 half gallon containers of water on my front seat, so I popped the switch, lifted the hood, used the prop rod to hold the hood up as I started dowsing the flames that were popping up on the passenger side of my engine compartment near the firewall. After using both half gallons, I ran to the rear of the vehicle, opened the hatchback, and grabbed a gallon spray bottle of water and brought that back around to the front of the vehicle. By this point the prop rod holding the hood was bending and the flames were popping back up, I pumped the sprayer and directed a stream of water with my left hand and used my right to hold up the hood as the prop rod was not working. After the fire was completely out, I returned to the rear of the vehicle, donned my reflective vest, put a portable flasher on my vehicle, and at this point a Benton County fireman in a pickup arrived - he was called by a motorist that saw me pulling over with smoke trailing my vehicle. The fireman was followed by a large firetruck and crew. They propped up the hood with a bar and inspected the motor to verify the fire was completely extinguished. They took my information and left. A Washington State Patrol arrived, assessed the scene and offered assistance, but I already had called my wife so he left me to wait for her. He told me I had 24 hours to get the car off the interstate. I had the car towed to my driveway by A&E towing at about 2:30PM. I just realized this morning that I ought to report it to you. I haven't tried to start it, but I'm sure it won't.
NHTSA complaint #11746708 — an unverified report by a vehicle owner.
While driving, the vehicle suddenly lost power and stalled. I was able to safely pull to the side of the road. The engine would not restart. Upon inspection, the engine was found to be completely out of oil despite being maintained according to recommended oil change intervals and not being overdue for service. There were no visible oil leaks under the vehicle and no prior low oil warning light or oil pressure warning light was observed before the failure. The vehicle had previously been serviced by a Kia dealership for turbocharger-related concerns, including turbocharger boost control and wastegate actuator issues. The dealership later diagnosed the vehicle with a burnt valve in cylinder #1 and recommended complete engine replacement. I am concerned because this vehicle experienced excessive oil consumption without sufficient warning to prevent engine failure. The vehicle stalled while being driven, creating a potential safety hazard due to sudden loss of power in traffic. The vehicle is available for inspection. The failure has been confirmed by a Kia dealership service department.
NHTSA complaint #11744353 — an unverified report by a vehicle owner.
I did not have an incident yet. I was advised by my local State representative Jimmy Gordon's office. They stated were unable to help me get reimbursement for the $8000 I just paid my Kia dealer, but that I should make a complaint on this website. What happened is that I was hearing an odd noise and it was slipping. I went in thinking it was my tires and it needed alignment- so I had them replaced , etc in April. But the sound was still there so I went back in . Then the Kia St Cloud dealer diagnosed that the AWD transfer case was the cause (pd $4704 including $130 surcharge! ). When dealer called to say it was ready, they said bad news- your transmission is also damaged (pd $3197 including $90 surcharge ! ). This is a known failure of Kia/Hyundai models and needs to be addressed. You can lose control of your car and there could be an accident, especially on busy highways! I appealed to Kia corporate and also BBB auto line, but they both denied because too many miles (130k). The sound I heard /issue with transfer case & transmission happened as soon as my powertrain warranty was over! This is not right! I was someone who had given this vehicle 5 stars! I am the only owner and a multi- Kia owner who only brought this vehicle to a Kia dealer for all work. I have all records and that info was why Kia corporate originally told me i had "justification " for a goodwill reimbursement. [I currently am unemployed so I had to put all the repairs on a credit card (which meant being charged a 2.9% surcharge without informing me at the counter!)]. I hadn't heard so called June 2nd to Kia customer care and they said it was denied after all and would not give me any info except that they had negotiated with the dealership and it came back denied! I tried to call the GM at the dealer , but no answer back from my voice mail to Hector. Then BBB AUTO LINE also told me ineligible due to mileage. Well, this is still a dangerous issue and needs to be addressed!
NHTSA complaint #11743447 — an unverified report by a vehicle owner.
I received a voluntary emissions update letter from kia, and although it was voluntary, the letter said failure to update could be considered lack of maintenance. The update was performed on XXX at Dorsch Ford/Kia in [XXX]. The vehicle ran poorly from that day forward. I gave it a couple of weeks to insure that the system could learn my driving habits. I then went to the Dorsch service department to report my issues. The service writer {Andy} said he hadn't heard of any issues with the update. I had him log in my issues to have a record that I complained. I returned several more times and talked to other service writers who told me that if they would check the vehicle and found nothing that I would have to pay service fees. the vehicle jerks and up/downshifts frequently and almost stalls sometimes when accelerating from a stoplight. It will lung periodically when navigating a parking lot at low speeds. It frequently searches for a different gear in traffic. To be clear, my car ran perfectly before this update. I asked them to put the previous tune back into the car but they said they can't do that. The car runs fine sometimes but the uncertainty of the jerking and shifting at improper times makes it dangerous to drive. Also almost stalling at an intersection is very dangerous too. I doubt that I am the only one to have this problem. Please help in any way you can to get this fixed without me having to spend money to correct a factory/dealer initiated problem Thank you for all your help. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11741993 — an unverified report by a vehicle owner.
While exiting the John C. Lodge Freeway in Detroit at approximately 40 MPH, the brake pedal became stuck halfway during braking and the vehicle did not stop properly on the first brake application. I had to remove my foot from the brake pedal and press it again before the brakes engaged and the vehicle stopped. This has occurred approximately seven times intermittently. The issue creates a serious safety hazard and risk of collision. In addition, the “D” gear indicator intermittently blinks while driving and the “P” indicator intermittently blinks while the vehicle is in Park. Vehicle was previously brought to dealership and issue was reported, but the condition continues intermittently.
NHTSA complaint #11739925 — an unverified report by a vehicle owner.
I experienced engine failure and the dealership, corporation and warranty are refusing to replace the engine. My engine falls under an engine settlement. The denial states the corporation will not approve because i do not have a system update. The system update was issued while in the dealer’s inventory, part of the Certified Pre Owned inspection, it is required that the dealer updates all recalls & product improvements before certification.
NHTSA complaint #11738633 — an unverified report by a vehicle owner.
My vehicle stalled (104000mi) bought in 2024 looked up online was known between 2023-2024 engine recall I wasn't told or shown on Car Fax anything about this So [XXX] worked on engine 2. Mths no charge was to get new motor they replaced alternator.Told Done Engine light was on I went to drive it jerked and over dash said engine problems return to dealer ( 5 min) I did .They had it2 more weeks said Transmission box lied I found diagnostics in my dash says engine control problems.Theysaid I had to return loaner and take my vehicle It's not the transmission They are lying. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11736797 — an unverified report by a vehicle owner.
Unjustified Denial of Engine Warranty Coverage - 2015 Kia Sportage "I am filing this complaint because Kia is denying warranty coverage for a known engine defect (rod bearing failure in the Theta II GDI engine) on my 2015 Kia Sportage. The manufacturer’s denial is based on the claim that I did not perform the KSDS (Knock Sensor Detection System) software update in previous years. However, I have officially performed this update at an authorized Kia dealership (Hendrick Kia of Cary) on April 17, 2026. Despite my vehicle now fully complying with the recall requirements, Kia continues to deny the warranty claim by retroactively applying a 'missed update' penalty. This is a clear attempt to evade their obligations under the class-action settlement regarding this engine defect. The manufacturer is holding the current owner responsible for maintenance history they cannot control, even though the vehicle is now technically compliant. I request that the NHTSA investigate this practice, as it prevents consumers from accessing the safety-related warranty protections they are entitled to." Tips for your submission:
NHTSA complaint #11733440 — an unverified report by a vehicle owner.
The vehicle has had recurring drivability problems since at least June 2024, including repeated check engine light illumination and severe loss of acceleration. On 06/19/2024, dealership service records document that the check engine light was on and the vehicle would not accelerate past 40 mph, and the check engine light was flashing. More recently, while driving on the interstate at highway speed, the vehicle suddenly lost power and dropped speed, forcing me to pull over on the side of the road for safety. This created a dangerous situation and risk of collision. The problem continues despite multiple service visits. A dealership service visit on 06/05/2025 documents stored diagnostic trouble code P0420 (Catalyst System Efficiency Below Threshold), but the dealership stated no further repairs were recommended and no repair was performed. This issue is recurring and creates a serious safety hazard due to sudden loss of power while driving. Vehicle: 2017 Kia Sportage VIN: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11720092 — an unverified report by a vehicle owner.
The contact owns a 2016 Kia Sportage. The contact stated that while driving at 55 MPH, the transmission failed to properly change gears. The contact stated that the check engine warning light was illuminated and there was smoke coming from the engine compartment. The vehicle was towed to the residence. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 180,000.
NHTSA complaint #11716724 — an unverified report by a vehicle owner.
Vehicle developed a cylinder 3 misfire that progressed to engine failure. The engine began running rough and lost power during normal operation. Dealer diagnosed internal engine damage and advised that a complete engine replacement is required. Prior to failure, the vehicle experienced significant oil loss, with oil leaking and rapidly depleting despite proper maintenance. Oil levels dropped abnormally between services. No adequate warning was provided before the engine condition worsened. Failure resulted in loss of engine performance and required towing. Vehicle was properly maintained. Repair cost exceeds reasonable expectations for vehicle age and mileage. Dealer advised that required engine parts are on backorder, leaving the vehicle inoperable for an extended period.
NHTSA complaint #11714581 — an unverified report by a vehicle owner.
I was driving down the highway at the posted 70mph limit in medium traffic. The car started to sputter and wouldn't accelerate. The car started to decelerate and cars coming from behind had to quickly swerve to avoid me. The cab then filled with the strong smell of gasoline and I became light headed. The car reduced to around 10mph and I pulled off the highway into a gas station and waited for a tow truck. We towed the vehicle to a Kia dealership and they claimed to have fixed it. A similar circumstance has occured 3 more times since that first issue. After each time, Kia has claimed to have fixed the issue.
NHTSA complaint #11712744 — an unverified report by a vehicle owner.
Incident Date: [XXX] Vehicle: 2023 Kia Sportage Component(s): Power Train (Automatic Transmission Shifter), Electrical System (Instrument Cluster/Display), Back Over Prevention (Rearview Camera) Description of Incident: On [XXX], while performing a low-speed maneuver in Pittsburgh, PA, the vehicle experienced a catastrophic Shift-by-Wire (SBW) logic failure resulting in a collision. After shifting the rotary gear selector from Reverse to Drive, the transmission failed to engage the selected gear and remained in Reverse without any auditory or haptic warning to the driver. Simultaneously, the Rear View Monitor (RVM) experienced a "system hang," continuing to display the rear camera feed and blocking the instrument cluster’s gear-position indicator. Due to this dual failure—unintended gear retention and display latency—the vehicle traveled in an unintended direction (Reverse) while I attempted to accelerate forward, leading to a property damage accident. Post-Incident Documentation: The vehicle was presented to Performance Kia (Moosic, PA) on 12/19/25. Technician #957 confirmed the software logic was corrupted and performed a "Clear and Relearn of Adaptive Values" to reset the Transmission Control Module (TCM). This diagnostic confirms that the vehicle was operating with failed control logic. Safety Risk: The failure of the Shift-by-Wire system to accurately execute gear changes, combined with the instrument cluster's failure to provide real-time gear position as required by FMVSS No. 102, creates an unreasonable risk of collision and injury. I was never notified of Recall SC270 or SC275, which address similar software and hydraulic failures in this model year. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11711230 — an unverified report by a vehicle owner.
This complaint is in reference to my vehicle which is involved with Federal Class Action Lawsuits and the fact that my engine was defective from the day it was built. My engine was consuming oil at a rate of 1 quart every 361.1 miles driven. I was advised to not put oil in it and drive it until it blows up. This would have put myself, my family, friends, or any other passengers or bystanders at risk. Kia is denying my claim solely on a non rod bearing failure.
NHTSA complaint #11709880 — an unverified report by a vehicle owner.
While driving the vehicle and selecting EV only mode the engine RPMs surge to about 3000. This happens frequently and I have it on Video. Kia has had the car multiple times for electrical may electrical related repairs but say the vehicle is normal. The tech line person even had the dealer drive a similar car for a baseline. I would expect they had a baseline prior to manufacturing the car. This is an ongoing unrepaired issue. Date below is first reported date of electrical concerns.
NHTSA complaint #11708265 — an unverified report by a vehicle owner.