Kia Niro Complaints

531 consumer complaints on file.

#11760958August 31, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2020 Kia Niro. The contact stated that while driving 79 MPH, the thermostat displayed that the engine was running hot and there was white smoke coming from the front of the vehicle, with the check engine warning light illuminated. Upon inspection, the contact became aware that a hose underneath the radiator was disconnected, and coolant was leaking from the hose, and the dipstick had dislodged into the engine. The contact stated that while accelerating from a complete stop or while decelerating, the vehicle jolted forward. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 98,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760037August 27, 2026
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
My 2017 Kia Niro has developed a serious hybrid system failure that causes the vehicle to shut off unexpectedly while driving. For about a month, the car would only start using the “12V Battery Reset” button. Now it starts, but after driving a short distance, the vehicle loses power and shuts off without warning. The only way to restart it is by pressing the reset button again. The AC and accessories continue to run, and the high‑voltage battery appears to charge normally, but the car cannot maintain 12V power under load. This is consistent with a DC‑DC converter or 12V subsystem failure, which is a known issue in early Kia Niro hybrids. This sudden shutdown creates a dangerous situation, especially in traffic. I am reporting this as a safety defect due to the unexpected loss of motive power. There is no recall for this issue, but many owners have reported similar failures.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11759306August 25, 2026
ENGINE, FUEL/PROPULSION SYSTEM, ELECTRICAL SYSTEM
2022 Kia Niro EX Premium Hybrid was sold as Kia Certified Pre-Owned on August 12 2026 with an active check engine light present at time of purchase. Dealer Calavan Kia West in Lithia Springs GA represented the vehicle as passing a 165-point CPO inspection. Dealer attributed the light to a gas cap issue and cleared the code to complete the sale. Six days later approximately August 18 2026 the check engine light returned. Dealer attempted one repair which failed. As of August 25 2026 the defect remains active and undiagnosed. On a hybrid vehicle an undiagnosed engine or propulsion system fault represents a potential safety concern. The CPO certification process failed to identify this defect prior to sale.”
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11758875August 23, 2026
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
I am submitting a complaint regarding a safety issue with the rearview camera on my 2020 Kia Niro EV. VIN # [XXX] The rearview camera display has stopped functioning properly. Based on technical research and driver community reports, this issue appears to stem from an electrical surge that causes the camera circuit to malfunction. Upon checking owner forums, I became aware of an active manufacturer campaign/recall (Kia Recall SC342) related to this fault. However, I have not received any official recall notification or letter from Kia regarding my vehicle. Because a non-functioning rearview camera significantly reduces rear visibility and poses a clear safety hazard, I request that the NHTSA review this defect and ensure affected owners are properly notified and provided with a repair solution. Thank you for your assistance in investigating this safety concern. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11757679August 18, 2026
POWER 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11757547August 17, 2026
VEHICLE SPEED CONTROL
I was slowly driving in the parking lot of the Meadowmeer Golf course on [XXX] today, Monday XXX at about 11:30AM. As I began the turn to pull into a parking space, at about 5 miles an hour, the car rapidly and unexpectedly accelerated. I immediately slammed on the brakes, leaving skid marks on the payment. Before the car stopped it drove into a curb around a flower garden. The i-pedal was not engaged. Myself and the passengers were frightened but not injured. No one has inspected the car as yet. There were no messages. I am trying to reach the dealer Kia of Bremerton, WA but they have not yet been responsive. The car has been driven about 9500 miles in total. I bought it as a certified used car from Kia on XXX. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11757072August 14, 2026
TIRES
The vehicle began shaking violently on the Florida Turnpike, and the factory-installed tire completely separated from the factory rim at highway speeds. This was a life-threatening equipment failure on a brand-new vehicle fully covered under Kia’s 5-year/60,000-mile bumper-to-bumper warranty. The vehicle is at the dealership awaiting repairs. The tire size is 205/60R16
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11755319August 6, 2026
ELECTRICAL SYSTEM, VISIBILITY/WIPER, ENGINE
AC not working, recall SA512 is needed, Kia wont cover the cost of replacing electrical components. Thermal Runaway / Fire Risk: The broken compressor prevents the battery thermal management system from cooling the main high-voltage lithium-ion battery package, creating an overheating hazard during driving or DC fast-charging. Sudden Loss of Power (Motive Power): Battery overheating can trigger a sudden "safe mode" or turtle mode, dropping your speed to zero unexpectedly on the highway.Impaired Driver Visibility: The lack of functional cabin heating prevents windshield defrosting, severely impairing the driver's ability to see the road safely.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11754127August 1, 2026
SERVICE BRAKES, ELECTRICAL SYSTEM, POWER TRAIN
2017 Kia Niro Hybrid subject to Safety Recall SC276 (NHTSA Campaign 23V534) for the Hydraulic Clutch Actuator (HCA). Fluid contamination of the HCA PCB can cause an electrical short and engine compartment fire risk. Official remedy is HCA inspection/replacement as necessary plus a new fuse. Three dealer visits: Shortly after purchase for SC276 recall and routine service. Dealer performed HCA Inspect/Replace, reported no problem codes, and replaced the fuse. After sudden complete loss of propulsion on the freeway at 60-65 mph with a passenger. Engine RPM rose sharply as if in neutral. No accelerator response. Brake system warning lights illuminated. Had to pull over to the shoulder, shut off and restart before it would move. Took to dealer same day. They kept it several days, found no codes, could not duplicate, and released as "good to go." Vehicle later would not move and entered limp mode. Towed to dealer. That morning I replaced spark plugs myself with new NGK Laser Iridium Premium and informed the dealer. HCA fluid reservoir was empty. Dealer diagnosed internal leak in the HCA causing clutch contamination. Photos showed green fluid on undercarriage. Repair estimate exceeds $6900. Same Multi-Point Inspection that diagnosed the internal leak marked fluid leaks and fluids as Passed. Report still recommended spark plug replacement despite being told they were just replaced. Sudden loss of propulsion on public freeway with a passenger present, followed by complete loss of driveability due to internal leak of the same recalled HCA component, created a clear safety risk. Vehicle became undriveable and required towing. Prior "good to go" release left the vehicle on the road with an unresolved issue involving the recalled component.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753848July 30, 2026
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, UNKNOWN OR OTHER
My 2024 Kia Niro Hybrid has experienced multiple issues that I believe should be documented. The vehicle previously displayed an Electronic Parking Brake (EPB) warning. It was taken to an authorized Kia dealership for diagnosis and repair. Although repairs were performed for the EPB-related issue, I am submitting this report so the condition is documented if similar reports are being received from other owners. In addition, the vehicle developed a persistent creaking/clicking noise during forward driving. The noise was not present when the vehicle was new and began after normal use. It is most noticeable during forward driving and is not heard while backing up. The vehicle has been inspected by an authorized Kia dealership on multiple occasions, including a ride-along with a technician. After evaluating the vehicle, the dealership advised that the noise was normal and that the vehicle was functioning as intended. No additional repair was recommended. Although the dealership concluded the noise is normal, I remain concerned because the noise did not exist when the vehicle was new and has persisted. I am submitting this complaint so NHTSA has a record of the issue and can determine whether other owners are reporting similar conditions that may warrant further review.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753454July 29, 2026
PARKING BRAKE
The contact owns a 2022 Kia Niro. The contact stated that while his wife was driving at various speeds, the vehicle made an abnormally loud grinding sound. The vehicle was taken to an independent mechanic, and the brake pads and rotors were replaced. While replacing the brake pads and rotors, the mechanic became aware that the parking brake cable housing was at an improper angle on the rear wheels, causing friction to damage the parking brake housing and exterior rubber. The mechanic determined that the parking brake cable assembly needed to be replaced. The vehicle had not received any additional repairs. The manufacturer was not notified of the failure. The failure mileage was approximately 90,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753634July 29, 2026
ELECTRICAL SYSTEM, EXTERIOR LIGHTING, VISIBILITY/WIPER
Falsification and/or alteration of repair logs, service dates, and/or mileage records across dealership diagnostic networks and third parties. Evasion of warranty and/or other maintenance requirements. Poor dealership and corporate treatment/harassment of military veterans. Suspected unauthorized non-factory wiring harness splices and/or other devices tapped directly into primary Controller Area Network (CAN-Bus) control modules on current model-year (2026) passenger vehicles; resulting in inconvenient and unsafe intermittent faults including potential thermal runaway/fire hazard, other potential safety hazards, severe mental distress, and time/financial losses. Real time telematics updates when parked ultimately resulted in total loss of vehicle, likely due to logic induced parasitic 12v battery drain from previously mentioned unauthorized aftermarket devices. Second ("new") vehicle from the same lot shows similar symptoms and contradicting Carfax reports. Parked pending investigations.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753205July 28, 2026
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
My 2017 Kia Niro exhibits a dangerous low-speed engine surging hazard matching Safety Recall SC276. An authorized Kia dealership technician inspected the vehicle under RO #6115244 and formally documented 'seeping fluid residue' inside the clutch actuator housing. However, the dealership and Kia Corporate are refusing to honor the recall remedy and have released the car at a $0.00 balance while explicitly stating in writing that the vehicle is 'not safe to drive.' I am requesting federal intervention for safety campaign non-compliance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753028July 27, 2026
SERVICE BRAKES
The contact owns a 2019 Kia Niro. The contact stated that while driving 65 MPH, the brake pedal was depressed; however, the vehicle failed to stop as needed. The contact pulled over to the shoulder of the roadway and the parking brake was engaged to keep the vehicle from moving. The message "Stop the Vehicle and Check Regenerative Brakes" was displayed. The failure was a recurring failure. The vehicle was towed, and the dealer was contacted; however, the vehicle was not diagnosed or repaired because the dealer was unable to duplicate the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 93,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11752872July 26, 2026
POWER TRAIN, ELECTRICAL SYSTEM, ENGINE
My 2023 Kia Niro Hybrid EX has experienced multiple warning messages and unresolved concerns after previous repairs. After the first recall repair, I began receiving intermittent warning messages while driving. The messages appeared briefly and disappeared before I could safely document them. After a second repair, the transmission was replaced. Shortly afterward, the vehicle displayed an overheating warning. I returned to the dealership, but they stated they could not find a problem. While traveling out of state, on July 6, 2026, the vehicle displayed warnings indicating that the 12V battery needed to be charged. On July 8, 2026, the vehicle would turn on, but the engine would not start or operate. Multiple attempts to jump-start the vehicle failed, including using a portable jump pack, another vehicle, and assistance from a tow truck driver. The vehicle displayed warnings stating that the 12V battery needed charging, the battery was draining, and that the hybrid system needed to be checked. Because the vehicle could not be operated and I was stranded away from home, I am concerned about the reliability and safety of the vehicle. The vehicle has undergone multiple repairs, including a transmission replacement, but I continue to experience warning messages and a loss of confidence in the vehicle's ability to operate reliably. I am requesting that this issue be reviewed for possible safety concerns.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11752715July 24, 2026
ELECTRICAL SYSTEM
Component or system that failed: High-Voltage Electrical System / High-Voltage Battery Safety Plug Assembly (specifically covered under Recall SC314 / NHTSA Campaign 24V-358). It is NOT wear and tear as falsely claimed by the dealer. The vehicle is available for inspection upon request at the owner's residence. How safety was put at risk: The vehicle triggers an active "Check EV System" master warning while driving, creating a severe risk of sudden loss of motive power (stalling) on public roads. The high-voltage charging system is also completely disabled, leaving an elderly driver stranded without transportation. Has the problem been reproduced or confirmed by a dealer?: Yes. Rick Case Kia (Duluth, GA) inspected the vehicle from July 20–22, 2026. Instead of resolving the recall defect at $0.00, they falsely mischaracterized the electrical failure as "wear and tear / customer declined repair" and demanded $1,617 out-of-pocket before releasing the unsafe vehicle. Has the vehicle/component been inspected by others?: Inspected by [XXX] Case Kia service department. Opened active corporate case with Kia America (Case #XXX). Independent mechanics have confirmed this is not simple “wear and tear”, but deeper electrical issues that were touched during the recall. Warning lamps, messages, or symptoms: "Check EV System" master warning light and total failure of the high-voltage charging port. Symptoms first appeared shortly after initial Recall SC314 service was performed on June 15, 2026, and worsened prior to returning the car on XXX. Kia claims to have completed Recall SC314 on June 15, 2026. However, the recall work directly triggered immediate secondary failures in the high-voltage charging system. The dealership is now attempting to evade liability for recall-induced damage by labeling it 'wear and tear' and demanding $1,617 to fix a failure caused by their own recall service. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11752437July 23, 2026
SUSPENSION, ELECTRICAL SYSTEM, ENGINE
Finally got car back from previous repairs and it was making a loud groaning noise all the time. Took it back to dealership and they said they had to repair the rack and pinion system and the gears were shredded. Employee says they now have another niro with the same problem as my original symptoms when transmission was replaced twice. Car has consistently had problems with the RPMs being incredibly high at low speeds but the dealership can’t seem to replicate the problem. Car randomly switched over to manual mode after a long drive. Video of problems given to employee and just said he’s going to give them to his field technician. Car has now been at the dealer for over 4 months and was finally returned because they can’t reproduce the problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11751662July 20, 2026
STRUCTURE:INTERIOR PANELS:DASHBOARD
The contact owns a 2022 Kia Niro. The contact stated that a hardwired kill switch was installed in the vehicle, and the switch overheated to the point that the vehicle was unable to operate. An investigation was conducted by the contact, who touched a big box underneath the dashboard. The contact's hand was burned on the fingertips because the box was extremely hot. Water was run over the hand by the contact to heal the injuries, but outside medical attention was not sought. The dealer was notified of the failure and a callback was promised. A diagnostic test and the repair were not yet performed. The manufacturer was not made aware of the failure. The failure mileage was approximately 92,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11751394July 19, 2026
UNKNOWN OR OTHER
I am submitting this complaint regarding a repeat failure of the Active Air Flap System on my 2017 Kia Niro, which I believe raises a broader safety and reliability concern. On XXX, my vehicle displayed a check engine light and “Check Active Air Flap System” warning. An authorized Kia dealer, Huffines Kia Corinth in Texas, diagnosed the issue and replaced the active air flap assembly (listed on the repair order as “FLAP ASSY–ACTIVE AIR”) at approximately 87,638 miles. At around 105,000 miles, the same warning and check engine light have returned, indicating that the Active Air Flap System is again malfunctioning despite the prior repair and part replacement. This suggests either repeated component failure or an underlying design or control issue that was not resolved. Owners of Kia Niro and related Hyundai/Kia models frequently report similar Active Air Flap System warnings and related diagnostic codes, and Kia has issued technical guidance addressing inspection, cleaning, and software behavior for this system. Although these issues may not yet be the subject of a formal recall, the pattern of repeated failures across multiple vehicles points to a systemic problem in a component tied to engine cooling and efficiency, which can reasonably affect safety, emissions, and vehicle reliability. I am asking NHTSA to review Kia’s handling of Active Air Flap System failures on the Niro and related models, including repeat failures after dealer repair, and to consider whether this issue warrants further investigation or recall/extended coverage action. Vehicle: 2017 Kia Niro Approximate mileage at initial repair: 87,638 Approximate mileage at repeat failure: 105,000 Location of repair: Huffines Kia Corinth[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11751226July 17, 2026
UNKNOWN OR OTHER
Re: Driver Safety Downgrade Stemming from Recent Software Update Complicating Tire Pressure Display Accessibility I am writing as the owner of a 2025 Kia Niro HEV to express my concerns regarding a recent software update that altered how tire pressure information is accessed on the instrument cluster. Prior to the update, tire pressures were available through the steering wheel page button, allowing drivers to view this safety-critical information with a single press and a quick glance. After the update, the tire pressure screen was removed from the page sequence and relocated into a deeper Vehicle Information submenu that requires multiple button presses and menu navigation. This change has created a significant safety issue. Tire pressure can only be displayed while the vehicle is in motion, yet the update now requires the driver to divert attention from the road to navigate several screens in order to access it. This is a clear regression from a human factors and safety standpoint. The previous method was intuitive, efficient and aligned with safe driving practices. The new method increases cognitive load and driver distraction at precisely the moment when attention should remain on the road. I respectfully request that Kia reevaluate this change and consider restoring tire pressure visibility to the steering wheel page button or another single-action, high-visibility location. Tire pressure is not a secondary diagnostic item; it is essential real‑time safety information that should remain immediately accessible. I appreciate Kia’s commitment to innovation, but updates that alter established safety workflows should be communicated clearly and designed to not be at odds with a driver's attention to the road. I hope Kia will take this feedback seriously and consider adjustments in future software releases. Thank you for your attention to this matter.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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