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Fuel systemPart report

2018 Kia Niro Fuel system Problems

Complaints
2about this part
Share
3%of 60 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the fuel system of the 2018 Kia Niro, 3% of the 60 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“hybrid battery warning paid out of pocket for towing, car still at the dealership, loss of income and wages, been treated with awful customer services, and paying out of pocket. Car went in on June 25”

NHTSA complaint #11602496, filed 2024-07

“Fire warning recall notice issued in July 2023. Follow up with both Kia and with Kia dealership that I purchased the vehicle from still says that there is no fix to this problem. THE PRINTED CIRCUIT BOARD (PCB) IN THE HYDRAULIC CLUTCH ACTUATOR (HCA) MAY BECOME CONTAMINATED WITH FLUID. A FLUID-CONTAMINATED PCB MAY LEAD TO AN ELECTRICAL SHORT CIRCUIT, THEREBY INCREASING THE RISK OF AN ENGINE COMPARTMENT FIRE WHILE DRIVING. With the potential of a fire risk while driving, why is the manufacturer not required to remedy this situation in a more timely manner. …”

NHTSA complaint #11567929, filed 2024-01

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2023511%
2022310%
202025%
2019814%
201823%
20171113%

Other parts of the 2018 Kia Niro

Transmission and drivetrain
19 complaints
Electrical system
18 complaints
Engine
17 complaints
Other or unknown
11 complaints
Brakes
6 complaints
Vehicle speed control
4 complaints
Body and structure
3 complaints
Exterior lighting
2 complaints
Air bags
1 complaints
Engine cooling
1 complaints
Seats
1 complaints

← All problems reported for the 2018 Kia Niro

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology