Problems · NHTSA complaints

2019 Kia Niro Hybrid problems

Owners filed 82 complaints about the 2019 Kia Niro Hybrid with NHTSA between Aug 2019 and Sep 2026. The most-cited component is power train (31).

Complaints
82
Filed with NHTSA
Crashes
4
Reported by owners
Fires
2
Reported by owners
Injuries
3
People reported injured
Deaths
1
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Power train31
  2. Electrical system16
  3. Engine14
  4. Service brakes12
  5. Fuel/propulsion system10
  6. Steering4
  7. Engine and engine cooling4
  8. Exterior lighting3
  9. Vehicle speed control3
  10. Back over prevention2
  11. Air bags2
  12. Forward collision avoidance2
  13. Wheels1
  14. Structure1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Oct 30, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20195
20206
20219
202211
202315
202414
202511
202611

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Power train

31 reports
“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 they told me that I needed a new transmission and the price to replace it was $6,000.00 plus tax, I told them that the issue it was because the clutch actuator, they said no, so I took my car home, and took it for a second opinion with an independent service center, after the inspection they told me that the transmission failed and it was stuck on the 2nd gear and it was better to replace the transmission, I went back to the Kia dealer ship and demand a formal diagnostic report…”
Owner complaint to NHTSAFiled Sep 16, 2026Power trainODI 11764701

Electrical system

16 reports1 fire
“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!! This is horrible that Kia is allowing this issue to go on!!!”
Owner complaint to NHTSAFiled Sep 6, 2026Electrical system, Service brakesODI 11762422

Engine

14 reports
“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 leak. This condition can cause coolant loss and overheating while driving. If the engine overheats while the vehicle is in operation, it could create a safety risk due to sudden loss of power or engine damage. The dealership confirmed the diagnosis after inspection and testing and provided a repair estimate to replace the affected exhaust heat recovery system component. The overheating warning message was the first symptom observed prior to diagnosis. The problem was confirmed…”
Owner complaint to NHTSAFiled Mar 14, 2026Electrical system, Engine, Fuel/propulsion systemODI 11724340

Service brakes

12 reports2 crashes
“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.”
Owner complaint to NHTSAFiled Jul 27, 2026Service brakesODI 11753028

Fuel/propulsion system

10 reports
“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.”
Owner complaint to NHTSAFiled Jun 23, 2026Service brakes, Fuel/propulsion systemODI 11745988

Steering

4 reports
“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 to back off under normal driving conditions. This component failure directly compromised the structural integrity of the front drivetrain, steering knuckle, and wheel hub assembly. Had the vehicle continued to be driven, the omission presented an imminent risk of complete mechanical separation, which could cause a wheel assembly to detach or lock up while in motion at high speeds, putting the safety of the occupants and other motorists at extreme risk. The vehicle remains…”
Owner complaint to NHTSAFiled May 22, 2026Steering, Power train, WheelsODI 11739644
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.