Research · Compact Cars · 2 NHTSA variants

2021 Kia RioRecalls, problems, MPG & safety

NHTSA lists 2 safety recalls and 15 owner complaints for the 2021 Kia Rio. Most complaints involve steering (4) and service brakes (3). The EPA rates it 36 mpg combined.

Combined MPG
36mpg
EPA · 1 version
NHTSA overall
—
Not rated by NCAP
Safety recalls
2campaigns
Latest May 2022
Owner complaints
15
Top: steering
Fuel cost / yr
$1,650est.
EPA estimate, best version
01 —Recalls

Safety recalls

2 NHTSA campaigns · applies to some vehicles, check your VIN

Steering: column

Free remedy

Kia Motors America (Kia) is recalling certain 2021-2022 Rio and Forte vehicles. A bolt in the steering column may not be secured properly, which can cause the steering column to detach from the steering rack and result in a loss of steering control.

SteeringReported May 5, 2022NHTSA 22V304000

Service brakes

Free remedy

Kia Motors America (Kia) is recalling certain 2020-2021 Rio vehicles. The brake master cylinder may have been manufactured with sharp edges that can damage the inner oil seal, resulting in reduced braking performance.

Service brakes, hydraulicReported Dec 1, 2021NHTSA 21V936000
Data from NHTSA Recalls API · synced Nov 12, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

15 complaints filed with NHTSA · Jul 2021 – Dec 2025
  1. Steering4
  2. Service brakes3
  3. Power train2
  4. Engine2
  5. Electrical system1
  6. Back over prevention1
  7. Seat belts1
  8. Lane departure1
  9. Fuel/propulsion system1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Rio model year we’ve synced.

View as table
Model yearNHTSA complaints
2001224
2002152
200384
200450
200537
200674
200746
200849
200941
201026
201124
201254
2013153
201452
201552
201680
201731
201828
201922
202027
202115
202212
202312
Crashes reported
2
Fires reported
0
Injuries reported
0
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 12, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Steering

4 reports1 crash
“Steering Gear Assembly completely broke at 81,000 miles. My daughter was backing up in a busy street at 5pm and lost 100 percent of steering control. Lucking cars dodged her and she didn’t get hurt or worse.”
Owner complaint to NHTSAFiled May 14, 2025SteeringODI 11660866

Service brakes

3 reports2 crashes
“Having been complaining about a noise from under the front right tire, I was initially told it was a little piece of plastic and that got cut off. I was still hear the scraping and squealing and I kept check the from right tire because I thought that's where it was coming from. I mentioned this to every mechanic at kia and was told "that's just how 2021s sound". Finally after months of complaining the noise got louder and you could hear it was clearly something in steering. They schedules an appointment for Dec 7th on Mon Nov 28th. Said it was safe to drive when that night while working I was turning a corner, I heard a loud spring noise, the tire and wheel jerked. It was snowing, so the car slide, only sliding into the curb. The front right break seemed to be locked and when you turn the steering wheel makes even more noise. Haven't been told the issue, but I'm certain it is not safe and definitely shouldn't be on the streets until it's fixed.”
Owner complaint to NHTSAFiled Nov 30, 2022Steering, Service brakesCrash reportedODI 11495434

Power train

2 reports
“Placed car in park got out to open a gate. Car took off forward even when shifter was in Park Position and almost ran a child over.”
Owner complaint to NHTSAFiled Nov 14, 2023Power train, Unknown or otherODI 11555136
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 12, 2026
04 —Key specs

Engines, transmissions & drive

1 version rated by the EPA
EPA class
Compact Cars
Engines
1.6L 4-cyl
Transmissions
Automatic (AV-S1)
Drive
Front-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 12, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Rio
Auto (AV-S1), 4 cyl, 1.6 L · Front-Wheel Drive
334136$1,650249
  • Rio
    Auto (AV-S1), 4 cyl, 1.6 L
    33 city · 41 hwy · $1,650/yr
    36
    mpg comb.
Data from EPA fueleconomy.gov · synced Nov 12, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

2 tested variants
NHTSA has not published 5-Star Safety Ratings for the 2021 Kia Rio as of Nov 12, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 12, 2026Vehicle 15640Vehicle 15641
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2021 Rio questions

How many recalls does the 2021 Kia Rio have?

2 safety recalls as of Nov 12, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2021 Kia Rio problems?

Owners filed 15 complaints with NHTSA. The most-cited components are steering (4), service brakes (3), power train (2). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2021 Kia Rio get?

The EPA rates the 2021 Kia Rio at 36 mpg combined, depending on engine and drivetrain (1 version rated).

Data from NHTSA & EPA · synced Nov 12, 2026