*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Power train
On August 22nd, I was driving from the grocery story to my house (5 miles away) when the transmission started failing only going on 2nd gear and the check engine light came on, when I got home, I called my mechanic and he connected his code reader to my card and the error code is P090B$07E9 Clutch "B" actuator control circuit performance error, he told me that Kia motors had an open recall for the clutch actuator, I called the Kia dealer to make an appointment for August 26th I told them the issue with my car and they told me they will check that error, it took two weeks for them to return my car and they told me that they replaced only the fuse for the Recall SC275 / NHTSA 23V534000 and…
Aug 22, 2026Service brakes
2019 Kia Niro. While driving normally on the street, the driver attempted to brake & the brakes would not respond. This is a very scary situation and Kia needs to handle immediately!! The message "Stop the Vehicle and Check Regenerative Brakes" was displayed. Thankfully the driver was able to come to a stop without crashing but if this was during heavy traffic time it definitely would've resulted in a crash. Could be even that much worse on the freeway, especially in Los Angeles. The vehicle was towed to the drivers home. After checking again, the vehicle was in limp mode & would not go over 15mph. The driver was able to get it to a Kia shop to be checked & they quoted a $9,000 repair!!…
Aug 20, 2026Service 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.
Sep 6, 2025 · 93,000 milesService brakes
My car is a 2019 KIA Niro Hybrid. It's only 7 years old, and my husband and I have been the only owners. It only has 61,000 miles on it, and it is serviced regularly and has to pass a state emissions test each year. As I was driving the other day, the dashboard lit up with critical alerts saying "check regenerative battery" and the braking system went completely soft; I could not stop the car using the brakes. It was terrifying. I had to pull off the road and use the emergency brake to stop the car. This was an awful incident that could have resulted in deaths or serious injuries. Again this is for a car that is well-maintained and well under 100,000 miles.
Jun 20, 2026Unknown or other
The Hydraulic Clutch Actuator has caused functional driving issues and caused my vehicle to go into limp mode. I was never informed of the recall issue prior to purchase, and the recall was marked as complete, when it was not. The fix for KIA NIRO Recall SC276 was incomplete in January 2024, and I purchased my vehicle in April 2024. My issues started in November 2025, and the incomplete recall issue has been ongoing. KIA offers only a 1/2-way fix, and this is simply not acceptable.
Nov 27, 2025Steering
A major drivetrain service and repair was completed by an authorized manufacturer dealership. After picking up the vehicle, an unusual front-end/steering noise was immediately reported to the staff. Over just 390 miles of driving, the symptom worsened. A subsequent formal inspection by a separate, independent authorized service center confirmed the root cause of the safety failure: the primary axle nut had been left completely unstaked during the initial drivetrain assembly, rendering the vehicle entirely unsafe to operate. The vehicle was grounded to prevent an accident. Because the mandatory safety protocol of staking the axle nut was omitted, the critical fastening hardware was allowed…
Apr 23, 2026Engine and engine cooling
The contact owns a 2019 Kia Niro. The contact stated that while driving at an undisclosed speed, the vehicle stalled in the middle of the road. The vehicle was successfully restarted and moved over to the side of the road. The vehicle was towed to an independent mechanic, where it was diagnosed with a blown head gasket, a misfire in the engine, and coolant mixing with the engine oil; however, the vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 118,000.
Mar 25, 2026 · 118,000 milesFuel/propulsion system
While traveling from upstate New York, the vehicle displayed an engine overheating warning shortly after startup while the engine was still cold. Because I was away from home, I stayed overnight and the next morning took the vehicle to a Kia dealership for inspection. The dealership inspected the vehicle and diagnosed a problem with the exhaust heat recovery system pipe. According to the service department, coolant is leaking internally through this component and is being burned in the exhaust system. The cooling system was pressure tested and held pressure externally, indicating the coolant loss is occurring internally through the exhaust heat recovery system rather than from an external…
Feb 8, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
