VehicleVerdict

2018 Kia Niro Phev problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 24 complaints on file for the 2018 Kia Niro Phev — too few to judge reliability from owner reports alone — but one recall campaign applies to this year, so any used example should have its VIN checked for completed recall work.

24

NHTSA complaints

1

Recalls

1

Investigations

1

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 2018 compare to other Niro Phev years?

Niro Phev NHTSA complaints by model year, 2018 highlighted33 complaints2018: 24 complaints2019: 33 complaints2020: 5 complaints2021: 1 complaints2022: 16 complaints2023: 10 complaints2024: 3 complaints2025: 4 complaints
Niro Phev NHTSA complaints by model year, 2018 highlighted. Red bars are years to avoid.

See all Niro Phev years to avoid →

What are the most common 2018 Kia Niro Phev problems?

ComponentComplaintsShare
Transmission625%
Engine417%
Electrical System313%
Other28%
Speed Control28%
Body & Structure28%
Fuel System14%
Brakes14%
Driver Assistance14%
Airbags14%
Suspension14%

Does the 2018 Kia Niro Phev have recalls?

1 NHTSA recall campaign on file. Recall repairs are free at franchised dealers.

23V534000TransmissionJuly 31, 2023 · 121,411 units

Defect

Kia America, Inc. (Kia) is recalling certain 2017-2022 Niro and 2018-2022 Niro Plug-in Hybrid vehicles. Fluid may leak into the printed circuit board inside the hydraulic clutch actuator, which can result in an engine compartment fire.

Consequence

A fire increases the risk of injury.

Remedy

Dealers will inspect and replace the hydraulic clutch actuator as necessary and install a new fuse, free of charge. Owner notification letters were mailed December 29, 2023. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC276.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“The contact owns a 2018 Kia Niro. The contact received notification of NHTSA Campaign Number: 23V534000 (Power Train) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer…”

Complaint filed with NHTSA · Transmission · July 31, 2023

“In July 2023, Kia identified a defect that can increase the risk of an engine compartment fire while driving; namely that the printed circuit board in the hydraulic clutch actuator may become contaminated with fluid and lead to an electrical short circuit. To date, there is still no remedy…”

Complaint filed with NHTSA · Engine · July 31, 2023

“VEHICLE RANDOMLY FLASHES MESSAGE TO CHECK HYBRID SYSTEM. WARNING MESSAGE DISAPPEAR AFTER VEHICLE RESET BUT THE MESSAGE HAS REPEATEDLY COME UP VERY OFTEN NOW. MESSAGE POPS UP DURING MANY DIFFERENT SCENARIOS: AFTER CHARGING, BEFORE CHARGING, WHILE CHARGING, AND DURING OPERATION.”

Complaint filed with NHTSA · Electrical System · March 21, 2019

“I WENT TO A KIA DEALER FOR AN OIL CHANGE AND WAS THEN INFORMED THERE WERE 3 OPEN RECALLS ON MY VEHICLE. I RECEIVED NO NOTIFICATION BY MAIL, EMAIL OR PHONE. THE REPAIRS WERE TO TAKE 5 HOURS. I MADE AN APPOINTMENT TO DO THE REPAIRS AND LEFT THE CAR THERE THE ENTIRE DAY AND HAD TO BE SHUTTLED 20 MILES…”

Complaint filed with NHTSA · Body & Structure · January 31, 2019

“VEHICLE RANDOMLY FLASHES MESSAGE TO CHECK HYBRID SYSTEM. WARNING MESSAGE DISAPPEAR AFTER VEHICLE RESET BUT THE MESSAGE HAS REPEATEDLY COME UP VERY OFTEN NOW. MESSAGE POPS UP DURING MANY DIFFERENT SCENARIOS: AFTER CHARGING, BEFORE CHARGING, WHILE CHARGING, AND DURING OPERATION.”

Complaint filed with NHTSA · Other · March 21, 2019

2018 Kia Niro Phev — common questions

Is the 2018 Kia Niro Phev reliable?

The record is thin — 24 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 1 recall should be verified as completed.

What are the most common 2018 Niro Phev problems?

According to NHTSA complaint data, the leading problem areas are transmission (6 complaints), engine (4 complaints), electrical system (3 complaints).

Does the 2018 Kia Niro Phev have recalls?

Yes — NHTSA lists 1 recall campaign affecting the 2018 Kia Niro Phev. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 2018 Kia Niro Phev under NHTSA investigation?

NHTSA opened one investigation into this model year; all are now closed.

Which Kia Niro Phev years should you avoid?

Based on complaint rates and open investigations, the Niro Phev years to avoid are 2019. The cleanest record among Niro Phev years belongs to 2021.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.