2018 Kia Niro

60 complaints on file, page 1 of 3.

1. Filed Sep 15, 2026Failure May 8, 2026Houston, TXUnknown or other

   My 2018 Kia Niro had the Hydraulic Clutch Actuator (HCA) replacement in 2024 due to a recall. About two years later, it failed again causing the call to completely stop working creating safety issues for me. The car was towed to the dealership but Kia refused to pay for the fix. I eventually paid for the fix and requested a reimbursement since my vehicle is directly impacted by Safety Recall Campaign SC276 (NHTSA Campaign 23V534000) due to a critical design defect causing fluid leaks and electrical fire hazards. Kia never responded after initial request for escalation on August 4th, then August 14th, then August 21st and finally a voicemail on September 1st. Under federal safety regulations managed by the National Highway Traffic Safety Administration (NHTSA), a manufacturer's statutory obligation to permanently resolve a safety-related defect does not expire if a previous, interim campaign remedy fails. The secondary failure at 44,723 miles demonstrates that the initial remedy failed to permanently safeguard the vehicle against the safety hazard. Per Kia's official recall notification, owners who incur expenses to remedy this specific issue have the opportunity to obtain complete reimbursement. Thank you for your prompt attention to restoring safety compliance to my vehicle.

   NHTSA complaint 11764588
2. Filed Sep 15, 2026Failure Sep 15, 2026Orlando, FLEngine, Power train

   The dealership is falsely reporting to Kia Corporate and the NHTSA that Recall SC276 is 'completed' by only replacing a fuse. They are refusing to replace the actively leaking, fire-hazardous Hydraulic Clutch Actuator unless I pay an out-of-pocket diagnostic fee. They are violating federal recall safety mandates by trying to release a vehicle with an active, un-repaired recall leak.

   NHTSA complaint 11764305
3. Filed Sep 3, 2026Failure Apr 10, 2025san francsico, CAElectrical systemCrash

   My kia niro 2018 backup camera takes a few seconds to start up when the vehicle is put in reverse. the time it takes differs from a second to sometimes 5 seconds. I know of accident caused in a McDonalds drive through where someone was backing up but the cam didn't turn on right away and they got in a small accident.

   NHTSA complaint 11761999
4. Filed Aug 18, 2026Failure Jun 22, 2026158,000 milesTuscaloosa, ALPower train

   The contact owns a 2018 Kia Niro. The contact stated that while driving at an undisclosed speed, the temperature gauge became elevated, and the vehicle stalled. The message "Check Hybrid System - Turn Engine Off" was displayed. The contact associated the failure with NHTSA Campaign Number: 23V534000 (Power Train). The dealer was contacted and stated that the vehicle was serviced under the recall; however, the vehicle was still inoperable, and additional diagnostic tests were needed. The vehicle was towed to an independent mechanic, and the mechanic discovered that there was no coolant inside the coolant reservoir. The contact attempted to contact the dealer but had not received a reply from the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 158,000.

   NHTSA complaint 11757679
5. Filed Jul 7, 2026Failure Jun 27, 2026Woodland, CAPower train

   The vehicle experienced a sudden powertrain failure while driving. A certified Kia dealership diagnostic scan confirmed active Diagnostic Trouble Code (DTC) P17ED (Engine Clutch System) and a physical hydraulic clutch fluid leak around the transmission housing area. These symptoms match the exact criteria of NHTSA Safety Recall 23V534 (Kia Campaign SC276) for the Hydraulic Clutch Actuator (HCA). The manufacturer's defective component leaked fluid, causing direct consequential failure of the internal clutch and transmission assembly. Kia is refusing to remedy this safety campaign failure at 100% zero cost to the consumer, violating federal safety recall mandates by attempting to charge 50% of the repair cost ($3,708.29) under the guise of 'goodwill assistance'.

   NHTSA complaint 11748846
6. Filed May 26, 2026Failure May 8, 2026Houston, TXUnknown or other

   I am writing to request assistance regarding a recurring issue with Recall SC276. Approximately two years ago, I had the hydraulic clutch actuator (HCA) replaced by a dealership as part of this recall. Since then, the vehicle has been driven only 10,000 miles, bringing the total mileage to about 45,000. The vehicle recently broke down, and the dealership confirmed that the replacement HCA has failed. Despite this being the same part addressed by the recall, the dealership quoted $1,700 for the repair, and Kia has declined to cover the cost. I believe Kia should be responsible for this replacement, as the recalled part was intended to provide a long-term solution to a safety issue. I would appreciate any help you can provide in ensuring Kia covers the cost of this repair.

   NHTSA complaint 11740074
7. Filed May 21, 2026Failure May 13, 2026Stevenson Ranch, CAElectrical system, Unknown or other, Vehicle speed control

   The vehicle just shut down as I exited. The power and gas pressure decreased. Pulled over to see if my hybrid battery was defective or drained. It wasn’t. A notification popped up and said “Hybrid Control System or Low Voltage DC/DC Converter, Contact dealer for service. Finally got it towed to Kia of Valencia the next day and they said it was “Hydraulic Clutch Actuator” and they want charge me $2200 to fix it. But looking up the part, it says there’s a recall for that exact problem.

   NHTSA complaint 11739377
8. Filed May 4, 2026Failure Apr 23, 2026Seattle, WAElectrical system, Engine

   On April 21, 2026, Go Kia Renton performed an oil change on my 2018 Kia Niro Touring (VIN). The car was in perfect condition just two weeks earlier — North Seattle Transmission did a full service on April 6, 2026 at 283,649 miles with no issues noted. Later that night while driving, the red oil light flashed. I pulled over immediately and called AAA. AAA towed the vehicle from Belltown [XXX] ) at 12:11 AM on April 23 to my house then at 9:14 AM towed it straight to Go Kia Renton. The AAA driver found oil leaking all over his tow truck. The car now has a dead battery and is showing Hybrid Control System / Low Voltage DC/DC Converter and Engine Control System codes. This appears to be a sudden engine seizure caused by oil loss shortly after dealer service. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11735577
9. Filed Apr 14, 2026Failure Jan 26, 2026Joplin, MOPower train

   I am reporting a safety issue involving my 2018 Kia Niro hybrid related to the Hydraulic Clutch Actuator (HCA), which is currently subject to a recall addressing fire risk. My vehicle has already had the recall remedy performed, which consisted of inspection and installation of a lower-amperage fuse. The dealer confirmed that the actuator is leaking fluid but did not replace it because there was no evidence of PCB contamination, which is the condition required under the recall. However, the vehicle is now experiencing significant drivability issues that create a safety hazard: Intermittent hesitation when accelerating from a stop Failure to properly engage the transmission, especially on inclines Engine revving without corresponding vehicle movement Delayed or inconsistent clutch engagement In one recent instance, the vehicle would not properly engage while attempting to move from a stopped position on an uphill incline, creating a hazardous situation where the vehicle could not reliably move when needed. This condition appears to be caused by loss of hydraulic pressure due to the leaking actuator, even though it has not yet reached the stage of PCB contamination described in the recall. The current recall remedy does not address this failure mode. Instead, it allows a known defective component to remain in service until it reaches a condition that presents a fire risk. In the meantime, the vehicle can experience loss of propulsion under normal driving conditions. I believe this represents a separate safety defect or an incomplete remedy, as loss of propulsion, especially during acceleration from a stop or on an incline, can significantly increase the risk of a crash. I am requesting that NHTSA investigate whether the current recall adequately addresses all safety risks associated with the defective Hydraulic Clutch Actuator, including drivability and loss-of-propulsion conditions that occur prior to PCB contamination.

   NHTSA complaint 11731040
10. Filed Mar 31, 2026Failure Feb 7, 2026175,000 milesLong Beach, CAPower train

    The contact owns a 2018 Kia Niro. The contact stated that when the vehicle was shifted into reverse(R), the vehicle failed to respond. The vehicle was turned off and restarted to reset the transmission, but the vehicle failed to respond while in reverse(R). The vehicle was shifted to drive(D) but failed to respond. The vehicle was shifted into park(P). The vehicle was towed to a local dealer. The dealer diagnosed the vehicle and determined that the transmission fuse and the hydraulic clutch actuator had failed and that the transmission needed to be replaced. The contact researched online and related the failure to NHTSA Campaign Number: 23V534000 (Power Train). The manufacturer was contacted and the contact was informed that the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 175,000.

    NHTSA complaint 11728259
11. Filed Feb 14, 2026Failure Feb 14, 2026Ashland, ORBody

    Everything is falling off the bottom of this vehicle

    NHTSA complaint 11718030
12. Filed Jan 23, 2026Failure May 1, 2019Coral Springs, FLElectrical system, Exterior lighting, Power train

    Ever since the purchase of the car I been bringing this attention to the dealership but they always turn down and avoiding the situation at first electrical issues like turning signals goes in and out window stop rolling up sometimes had to try for hours just rolls up fog light check light headlight and turn signal all together went out in the beginning started to work in and out and now window turn signal front both and one fog light now won't come back and front Air Flap won't operate that's from the few months into the car check light and also in the beginning car transmission always felt rough not gears smoothly change I brought this attention but they always ask change the transmission fluid but it's was a new car felt that but never bothered looking into but over time got worst now it hit you when picking up like gear just stuck and your whole body gets that shock like someone hit you from the back every time and when comes to slow stopping making crying sound. It's like I made the biggest mistake why I decided to buy the new car because I know old cars have problems but this is Brand New I bought shouldn't have problems, and from it's was new always heard the click sound when move from complete stop like go from on red light or from any stop position click hear it from front never worried but was not feeling good why but now all of sudden it's unbearable sound when turning or making u turn loud like anything when acceleration but not in straight drive asked dealership about all the problems I been getting since was a brand new car the answered I got it's now not in the warrenty will cost to check wow what a rip off and when I use to say those problems when was in the warrenty they would say it's not the major issue and yes one time one of the tech specialists I mentioned he you know what he said made me sick we would try something but warrenty is BS it's a piece of *** we never get money easily so this is why they always refuse to take this seriously wow

    NHTSA complaint 11712850
13. Filed Jan 8, 2026Failure Dec 12, 2025East Patchogue, NYElectrical system, Seats1 injured

    Driver heated seat shorted out and caused burn to leg. System has not been repaired, will wait to hear from Kia Customer Affairs prior to decision to repair. I was injured by this and have concerns about the safety of the vehicle, will this happen again if a new grid is installed. Kia dealership confirmed that the grid showed high resistivity but also claimed since nothing is melted I couldn't have been burned. The vehicle has only been inspected by the dealership currently. there were and are no indicators, warning lights or messages about the failure available. Kia dealerships claims there no way to tell with the electrical systems.

    NHTSA complaint 11709595
14. Filed Dec 5, 2025Failure Oct 15, 2025150,000 milesSan Diego, CAElectrical system

    The contact owns a 2018 Kia Niro. The contact stated that occasionally driving at various speeds, the vehicle hesitated to stop as intended while the brake pedal was depressed, and the brake pedal was depressed to the floorboard. The message "Stop - Regenerative Braking Failure" was displayed. The contact restarted the vehicle as a temporary repair; however, the failure reoccurred. The vehicle was taken to a local dealer, where it was diagnosed, and a 91400 fuse Kit was installed, and various repairs were performed. The vehicle was repaired out-of-pocket; however, approximately one month later, the failure reoccurred. The vehicle was taken back to the same local dealer where it was diagnosed; however, the cause of the failure was not determined. The vehicle was not repaired. The contact stated that the vehicle was taken back to the same local dealer, where it remained. Upon further investigation, the contact related the failure to NHTSA Campaign: 23V534000 (Power Train); however, the VIN was not included. The manufacturer was made aware of the failure, and a case was filed; however, was the claim was denied. The failure mileage was approximately 150,000.

    NHTSA complaint 11703232
15. Filed Sep 21, 2025Failure Sep 30, 2024Green Mountain, NCEngine

    Just before Hurricane Helene, I brought my 2018 Kia Niro Hybrid to Asheville Kia (NC) after noticing coolant loss and white smoke coming from the exhaust. The dealership charged me $1,400 for a repair involving new gaskets and the EGR cooler. Within a month, the same symptoms returned. I returned to the dealership and explained I believed the original issue had not been resolved. I had done research and found reports of similar problems in other Niro Hybrids. I specifically mentioned the coolant heat exchanger as a possible source, but they dismissed my input and pushed a $3,500 muffler system replacement. I asked for diagnostic proof, and they initially showed a photo of the muffler with no visible leak. Later, they claimed a "small leak" was found during a pressure test — but the symptoms didn’t align. I then took the vehicle to John’s Kwik Lube in Spruce Pine, NC, where they confirmed the coolant heat exchanger was faulty — exactly what I had originally suspected. They repaired it with a simple workaround for under $200, and I’ve had no issues since. The faulty component (coolant heat exchanger) is not available for inspection, but I retained diagnostic records, pressure test results, and screenshots of the dealership’s estimate. I also documented that Kia’s quote system does not allow access to past service quotes, so I had to screenshot everything manually. The only symptoms were coolant loss and white smoke from the tailpipe, beginning shortly before the storm in September 2018, and recurring until the final repair later that year. The problem was confirmed by an independent mechanic, and partially acknowledged (though misdiagnosed) by the Kia dealership. No police or insurance inspection was involved. This situation posed a safety risk due to reduced visibility, potential engine overheating, and exposure to coolant vapors, especially during uphill driving. The issue is known among Kia owners and appears to be a recurring design flaw in the Niro.

    NHTSA complaint 11688703
16. Filed Apr 29, 2025Failure Apr 27, 2025Apollo, PAService brakesCrash

    I'm 59 years old never have an accident or had to slam breaks on the guy in front of me slammed his breaks on so I did the same time the brake pedal was to the floor the car didn't even slowed down and not even skid marks hit him then air bags deployed the car was totaled no one got hurt thank God I do t know if any other kia cars had this problem I got real lucky

    NHTSA complaint 11657629
17. Filed Apr 22, 2025Failure Apr 22, 2025Sherrills Ford, NCService brakes

    An alert to "check regenerative brakes" popped up on the dashboard screen. My younger sister who is borrowing our car, told me it now takes her much longer to come to a stop when braking. She's having to brake really early to stop on time but traffic and animals will not always allow for that. From what I am reading online, this is a common issue due to faulty 12v battery or a loose ground from said battery. The only way to fully engaged the conventional brakes (without the regenerative brakes) is to switch the car into neutral and then brake. This is a major safety issue that Kia should address. Maybe they need to address the battery issue, but they definitely should address the fact that you have to shift into neutral to brake properly when the regenerative brakes arent working right. Seems like a common sense plan to have it default to conventional brakes when the others are having issues or at least provide a way to turn off regenerative brakes.

    NHTSA complaint 11656054
18. Filed Jan 25, 2025Failure Jan 25, 2025Lima, NYElectrical system, Engine

    Known issues with wiring cause check engine light to come on and also now the door open sensors to stay on. Just paid $800 for a known issue to the wiring that a Kia technical bulletin wss issued for, however the cost was left to the customer.

    NHTSA complaint 11638518
19. Filed Jan 9, 2025Failure Jan 6, 2025Magnolia, TXElectrical system

    Hydraulic Clutch Actuator recall was previously done and only a fuse was changed as the inspection only determined the actuator itself did not have an active code. 4 months has gone by and now the actuator has now failed.

    NHTSA complaint 11635031
20. Filed Oct 31, 2024Failure Oct 30, 2024Edmonds, WAEngine

    Internal combustion engine coolant leaking out exhaust. The heat exchanger located in the catalytic converter system is leaking, leading to the ICE coolant draining. This leads to the engine overheating, and damage. Signs of the issue started with the coolant level lowering quickly, then the car heater stopped working. This confirmed by an independent mechanic.

    NHTSA complaint 11622855