FaultScore

Worst years for a KIA Niro Phev

Owners have filed 96 complaints about the KIA Niro Phev with NHTSA across model years 2018 to 2025. More of them are about the transmission & drivetrain than anything else.

Avoid

2019 KIA Niro Phev

33 complaints — the highest FaultScore of any year, mostly transmission & drivetrain.

Cleanest on record

2023 KIA Niro Phev

10 complaints — the lowest FaultScore of the graded years.

Every KIA Niro Phev year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2025 4 0 0 Electrical System
2024 3 2 0 Acceleration & Cruise Control
2023 A 10 0 0 Other & Unspecified
2022 A 16 0 0 Transmission & Drivetrain
2021 1 0 0 Transmission & Drivetrain
2020 5 0 0 Transmission & Drivetrain
2019 C 33 0 0 3,000 Transmission & Drivetrain
2018 C 24 1 0 7,000 Transmission & Drivetrain

What breaks on a KIA Niro Phev

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Worst in 2019

Other & Unspecified 16 16.7%

Worst in 2019

Electrical System 10 10.4%

Worst in 2019

Engine & Cooling 9 9.4%

Worst in 2018

Brakes 5 5.2%

Worst in 2019

Acceleration & Cruise Control 5 5.2%

Worst in 2018

Driver Assist & Collision Avoidance 5 5.2%

Worst in 2023

Fuel & Propulsion 4 4.2%

Worst in 2019

Windows, Mirrors & Wipers 4 4.2%

Worst in 2022

Steering 3 3.1%

Worst in 2019

Body & Structure 3 3.1%

Worst in 2018

Lights 2 2.1%

Worst in 2019

Airbags 1 1.0%

Worst in 2018

Suspension 1 1.0%

Worst in 2018

Complaints filed over time

Every complaint about every KIA Niro Phev, by the month it reached NHTSA.

Nov 2018 peak 7 Jun 2026

Compare the KIA Niro Phev

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.