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Kia · NHTSA safety record

2018 Kia Niro

Every safety complaint, recall and defect investigation the US government holds on this vehicle.

Owners have filed 60 safety complaints about the 2018 Kia Niro with the US government. Of those, 5 describe a crash, 4 people were injured and no death is recorded. 3 recall campaigns are open against it, covering the power train and the hybrid propulsion system.

The most complained-about system is the power train, named in 19 complaints, 32% of the total. The typical failure was reported at 27,291 miles, the median across the 20 complaints that gave an odometer reading.

Compiled from NHTSA's complaint, recall and investigation files · Covers January 2018 to September 2026 · How this is counted

What is on file

60 complaints on file

60

Complaints

5

Describe a crash

0

Mention fire

4

People injured

0

Deaths

A complaint is an unverified account by the person who filed it, not a finding of fault. One complaint is one ODI number, which is how NHTSA counts them.

A recall is the manufacturer conceding a defect, and the repair is free. Whether one covers your particular car is a question only its VIN can answer, because a campaign covers a production range rather than a model year.

Which system owners named

Complaints naming each system
POWER TRAIN 19 · 32%
ELECTRICAL SYSTEM 18 · 30%
ENGINE 17 · 28%
UNKNOWN OR OTHER 11 · 18%
SERVICE BRAKES 6 · 10%
VEHICLE SPEED CONTROL 4 · 7%
STRUCTURE 3 · 5%
EXTERIOR LIGHTING 2 · 3%
FUEL/PROPULSION SYSTEM 2 · 3%
AIR BAGS 1 · 2%
ENGINE AND ENGINE COOLING 1 · 2%
SEATS 1 · 2%
0 8 15

Red marks a system with a recall campaign against it. One complaint can name several systems, so these add up to more than 60.

When the complaints arrived

By the year NHTSA received them

By the year NHTSA received them, which is not the year the failures happened. They peaked in 2023 at 14.

16 12 8 4
18 19 21 22 23 24 25 26

This is the year the complaint was filed, not the year the failure happened. The range runs from 2018 to 2026, the last of them a part year, which is why its column is drawn faint.

Crash test ratings

NHTSA New Car Assessment Program

NHTSA has not crash tested the 2018 Kia Niro. Its New Car Assessment Program tests a selection of each year's vehicles and does not reach motorcycles, heavy trucks, motorhomes or most low-volume models, so an absence here says nothing about how the vehicle would perform. It is not a low score.

What owners have reported about this vehicle is below, and it is a different question: a crash test measures what happens to the people inside in a controlled impact, while a complaint records what broke during ordinary use.

Recall campaigns

3 on file

POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CLUTCHES/BANDS:ACTUATORS/SOLENOIDS

23V534000 · July 31, 2023

The 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.
The risk
A fire increases the risk of injury.
The 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.

Kia America, Inc. · up to 121,411 vehicles across all model years covered

HYBRID PROPULSION SYSTEM

22V836000 · November 11, 2022

The defect
Kia Motors America (Kia) is recalling certain 2017-2018 Kia Niro hybrid electric vehicles previously recalled under recall 18V-666. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance, which can overheat the rear seats.
The risk
Overheated rear seats increase the risk of a fire.
The remedy
Dealers will inspect the PRA and replace either the PRA or the Main Relay, as necessary, free of charge. Owner notification letters were mailed January 9, 2023. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC256. This recall supersedes NHTSA recall number 18V-666. Vehicles already repaired under the previous recall will need to have the new remedy completed.

Kia America, Inc. · up to 27,030 vehicles across all model years covered

HYBRID PROPULSION SYSTEM

18V666000 · September 25, 2018

The defect
Kia Motors America (Kia) is recalling certain 2017-2018 Kia Niro hybrid electric vehicles. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance.
The risk
The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.
The remedy
Kia will notify owners, and dealers will inspect the Power Relay Assembly (PRA) for damage. If no damage is found, the main relay will be replaced. If damage is found, the PRA will be replaced. These repairs will be performed free of charge. The recall began November 23, 2018. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC168.

Kia Motors America · up to 27,030 vehicles across all model years covered

Defect investigations

1 on file

An investigation means NHTSA has decided a pattern is worth examining. A preliminary evaluation is often closed with no action; an engineering analysis is the stage that usually precedes a recall.

Pedestrian alert sounds

DP22005

Closed defect petition · opened January 27, 2023 · closed August 7, 2023 · led to recall 22V063000

the electrical system

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

In owners’ own words

Quoted from the complaint file

Quoted from NHTSA's complaint file. These are unverified accounts by the people who filed them, not findings of fault.

SERVICE BRAKES

1 injured · crash · towed · 1,800 miles

PURCHASED THE VEHICLE WITH SAFETY TECH PACKAGE WHICH INCLUDES AEB (AUTO EMERGENCY BRAKING) AND VEHICLE DID NOT STOP EVEN WHEN I APPLIED FULL BRAKES TO PREVENT A COLLISION. THE MAIN REASON I PURCHASED THIS VEHICLE WAS FOR THIS SAFETY FEATURE.

NHTSA complaint 11099431. Filed by an owner and not verified by NHTSA or by us.

SEATS

1 injured

Driver heated seat shorted out and caused burn to leg. System has not been repaired, will wait to hear from Kia Customer Affairs prior to decision to repair. I was injured by this and have concerns about the safety of the vehicle, will this happen again if a new grid is installed. Kia dealership confirmed that the grid showed high resistivity but also claimed since nothing is melted I couldn't have been burned. The vehicle has only been inspected by the dealership currently. there were and are no indicators, warning lights or messages about the failure available. Kia dealerships claims there no way to tell with the electrical systems.

NHTSA complaint 11709595. Filed by an owner and not verified by NHTSA or by us.

SERVICE BRAKES

crash · towed

On 2/15/2022 around 10:00AM, I was driving my vehicle as normal. Noticed brake lights ahead, I was about 3 car lengths back, which I always try to drive since I am on the road a lot and I prefer not to have an accident. Well this time, I put my foot on the brake as normal and the vehicle felt like brakes were not even working, pushed harder with my foot and waited for that pumping feeling (which I have felt before) and literally nothing! Once I was about a car lengths away, I knew my vehicle was not stopping so I sat up straight and leaned back before the air bags deployed in my face. I have since come home and found several complaints from other 2018 Kia Niro owners that have made a

NHTSA complaint 11452082, quoted in part. Filed by an owner and not verified by NHTSA or by us.

SERVICE BRAKES

crash · towed

I'm 59 years old never have an accident or had to slam breaks on the guy in front of me slammed his breaks on so I did the same time the brake pedal was to the floor the car didn't even slowed down and not even skid marks hit him then air bags deployed the car was totaled no one got hurt thank God I do t know if any other kia cars had this problem I got real lucky

NHTSA complaint 11657629. Filed by an owner and not verified by NHTSA or by us.

ENGINE
The dealership is falsely reporting to Kia Corporate and the NHTSA that Recall SC276 is 'completed' by only replacing a fuse. They are refusing to replace the actively leaking, fire-hazardous Hydraulic Clutch Actuator unless I pay an out-of-pocket diagnostic fee. They are violating federal recall safety mandates by trying to release a vehicle with an active, un-repaired recall leak.

NHTSA complaint 11764305. Filed by an owner and not verified by NHTSA or by us.

UNKNOWN OR OTHER
My 2018 Kia Niro had the Hydraulic Clutch Actuator (HCA) replacement in 2024 due to a recall. About two years later, it failed again causing the call to completely stop working creating safety issues for me. The car was towed to the dealership but Kia refused to pay for the fix. I eventually paid for the fix and requested a reimbursement since my vehicle is directly impacted by Safety Recall Campaign SC276 (NHTSA Campaign 23V534000) due to a critical design defect causing fluid leaks and electrical fire hazards. Kia never responded after initial request for escalation on August 4th, then August 14th, then August 21st and finally a voicemail on September 1st. Under federal safety regulations

NHTSA complaint 11764588, quoted in part. Filed by an owner and not verified by NHTSA or by us.

ELECTRICAL SYSTEM

crash

My kia niro 2018 backup camera takes a few seconds to start up when the vehicle is put in reverse. the time it takes differs from a second to sometimes 5 seconds. I know of accident caused in a McDonalds drive through where someone was backing up but the cam didn't turn on right away and they got in a small accident.

NHTSA complaint 11761999. Filed by an owner and not verified by NHTSA or by us.

POWER TRAIN

towed · 158,000 miles

The contact owns a 2018 Kia Niro. The contact stated that while driving at an undisclosed speed, the temperature gauge became elevated, and the vehicle stalled. The message "Check Hybrid System - Turn Engine Off" was displayed. The contact associated the failure with NHTSA Campaign Number: 23V534000 (Power Train). The dealer was contacted and stated that the vehicle was serviced under the recall; however, the vehicle was still inoperable, and additional diagnostic tests were needed. The vehicle was towed to an independent mechanic, and the mechanic discovered that there was no coolant inside the coolant reservoir. The contact attempted to contact the dealer but had not received a reply from

NHTSA complaint 11757679, quoted in part. Filed by an owner and not verified by NHTSA or by us.

POWER TRAIN
The vehicle experienced a sudden powertrain failure while driving. A certified Kia dealership diagnostic scan confirmed active Diagnostic Trouble Code (DTC) P17ED (Engine Clutch System) and a physical hydraulic clutch fluid leak around the transmission housing area. These symptoms match the exact criteria of NHTSA Safety Recall 23V534 (Kia Campaign SC276) for the Hydraulic Clutch Actuator (HCA). The manufacturer's defective component leaked fluid, causing direct consequential failure of the internal clutch and transmission assembly. Kia is refusing to remedy this safety campaign failure at 100% zero cost to the consumer, violating federal safety recall mandates by attempting to charge 50%

NHTSA complaint 11748846, quoted in part. Filed by an owner and not verified by NHTSA or by us.

UNKNOWN OR OTHER
I am writing to request assistance regarding a recurring issue with Recall SC276. Approximately two years ago, I had the hydraulic clutch actuator (HCA) replaced by a dealership as part of this recall. Since then, the vehicle has been driven only 10,000 miles, bringing the total mileage to about 45,000. The vehicle recently broke down, and the dealership confirmed that the replacement HCA has failed. Despite this being the same part addressed by the recall, the dealership quoted $1,700 for the repair, and Kia has declined to cover the cost. I believe Kia should be responsible for this replacement, as the recalled part was intended to provide a long-term solution to a safety issue. I would

NHTSA complaint 11740074, quoted in part. Filed by an owner and not verified by NHTSA or by us.

Compare

Other years of the Kia Niro

Model year Complaints Recalls Deaths
2025 17 1 —
2024 10 1 —
2023 44 2 —
2022 31 1 —
2021 9 1 —
2020 39 1 —
2019 56 1 1
2017 82 4 —

Other 2018 Kia models

Sorento 254 Optima 232 Soul 218 Sportage 164 Forte 136 Stinger 69 Sedona 48 RIO 28

Complaints on file, same model year.

Every Kia on this site — 181 vehicles.

If this is your car and a dealer keeps failing to fix it, your state's lemon law may require the manufacturer to replace it or buy it back. How many repair attempts it takes, and how long you have to file, is set by the state you bought in and by nothing on this page.

Where these numbers come from

A complaint is one owner's account and has not been verified by NHTSA or by us. A vehicle with more complaints is not necessarily worse: models that sold in larger numbers collect more of them. How this is counted.

Compiled and maintained by
Independent developer and analyst