Skip to content
Fuel systemPart report

2021 Kia RIO Fuel system Problems

Complaints
1about this part
Share
7%of 15 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the fuel system of the 2021 Kia RIO, 7% of the 15 complaints for this model year.

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

Fuel system: other model years

YearComplaintsShare of year
202218%
202117%
201827%
201645%
201524%
201448%
201385%
2012815%
201114%
201028%
200938%
200824%
200724%
200634%
200538%
2004616%
200379%
20021512%
20012411%

Other parts of the 2021 Kia RIO

Other or unknown
6 complaints
Steering
4 complaints
Brakes
3 complaints
Engine
2 complaints
Transmission and drivetrain
2 complaints
Back-over prevention (rear camera)
1 complaints
Electrical system
1 complaints
Lane departure
1 complaints
Seat belts
1 complaints

← All problems reported for the 2021 Kia RIO

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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