Vehicle Data Hub

2018 Kia Niro problems

NHTSA has received 85 complaints about the 2018 Kia Niro, and 22% of them involve drivetrain & axles. Next are electrical system (21%) and engine (21%).

At a glance

Complaints
85 filed with NHTSA
Most reported
Drivetrain & axles 22% of complaints
Crashes and fires
7 and 0
Injuries and deaths
6 and 0
Typical mileage
10,000 miles 27 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

When problems show up

Complaints by mileage, 2018 Kia Niro Complaints by odometer reading in 20,000-mile steps. The median is about 10,000 miles. 0k to 20k miles: 15 complaints 20k to 40k miles: 0 complaints 40k to 60k miles: 2 complaints 60k to 80k miles: 1 complaints 80k to 100k miles: 1 complaints 100k to 120k miles: 0 complaints 120k to 140k miles: 3 complaints 140k to 160k miles: 4 complaints 160k to 180k miles: 1 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 10,000 miles
Based on 27 complaints that include mileage. 63% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles15
20k to 40k miles0
40k to 60k miles2
60k to 80k miles1
80k to 100k miles1
100k to 120k miles0
120k to 140k miles3
140k to 160k miles4
160k to 180k miles1
180k to 200k miles0
200k+ miles0

What the data shows

Of the 27 complaints that include odometer readings, half describe a problem before roughly 10,000 miles.

Safety-related details: 7 complaints mention a crash; 6 injuries reported.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2018 ranks 3rd most-complained-about out of 7 model years of the Kia Niro with enough data (48 complaints in that window). It is also covered by 3 safety recall campaigns.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

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.

Reported at 1,800 miles, May 2018 CrashInjury

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.

December 2025 Injury

Both the right passenger door handle and rear drives side door handle have come off, in both cases a passenger was opening the door to enter the vehicle when the door handle failed and came off. The last incident back door occurred 9/7

Reported at 9,700 miles, September 2018

I was driving on the freeway. After slowed down and stopped completely, suddenly it lose power to run. Trying to step deeper the gas pedal, but no reaction at all. After turn off and turn on engine few times, it can run again, but this time, the real problem occur. The engine sounds so loud..it's hybrid car supposed to so quiet (that's what sounds usually). Later on, I found out how to still can drove it, but with high risk suddenly lose power on the street.

Reported at 10 miles, June 2019

Other model years of the Niro

Best and worst years for the Kia Niro