2021 Kia NiroProblems, recalls & complaints

NHTSA has logged 9 owner complaints about the 2021 Kia Niro, most often about the power train. It is covered by 1 safety recall, and for recall 23V-534 the manufacturer reports only 68% of affected cars repaired.

2021 Kia Niro

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through April 13, 2026. Updated daily. Photo: OathOn, CC BY-SA 4.0.

Complaints by system

Where the 2021 Kia Niro has problems

9 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Power train30
Engine20
Electrical system20
Vehicle speed control11
Visibility10
Visibility/wiper10

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

1 recall

2021 Kia Niro recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Kia.

Best & worst years

2021 vs. every other Niro year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Niro median. How we score

'17'18'19'20'21'22'23'24'25'26
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
1 investigation

NHTSA defect investigations

Federal investigations that included the 2021 Kia Niro, and the recalls they led to.

  1. Pedestrian alert soundsDP22005 · closed Aug 7, 2023
    Led to recall 22V-063
In owners' words

What Niro owners report

Recent power train complaints filed with NHTSA, shortened. Personal details are removed.

This is a hybrid vehicle. It has Dual clutch transmission. Since I have owned it, intermittently the clutch does not disengage completely. This causes the vehicle to try to pull ahead but my foot is on the brake. The vehicle does not stall. Somehow it figures out it can't pull ahead and somehow…
Complaint 11730504 · Apr 10, 2026
EV motor and drive train have a clattering noise, much like a playing card attached to a bicycle clattering against the wheel spokes. it speeds up and slows down with the acceleration of the motor.
Complaint 11725753 · Mar 20, 2026
I received important safety recall letter for NHTSA recall # 23V534. the HCA & or Fuse might need to be replaced. I brought the 2021 Nero to my local Kia dealership, Eagle kia,Riverhead NY on January 18th. The dealership still has the vehicle & claims that a code came up when they did the…
Complaint 11570590 · Feb 7, 2024

Own a 2021 Niro?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.