Research · Compact Cars

2021 Mazda CX-3Recalls, problems, MPG & safety

NHTSA lists 1 safety recall and 4 owner complaints for the 2021 Mazda CX-3. Most complaints involve steering (3) and electrical system (1). The EPA rates it 29–31 mpg combined, and NHTSA gives it 5 stars overall.

Combined MPG
29–31mpg
EPA · 2 versions
NHTSA overall
5of 5 stars
NCAP crash tests
Safety recalls
1campaigns
Latest Jul 2023
Owner complaints
4
Top: steering
Fuel cost / yr
$1,950est.
EPA estimate, best version
01 —Recalls

Safety recalls

1 NHTSA campaign · applies to some vehicles, check your VIN

Back over prevention: camera

Remedy pending

Mazda North American Operations (Mazda) is recalling certain 2014-2018 Mazda3 and 2016-2021 CX-3 vehicles. The rearview camera image may not display properly by showing a flickering or distorted image.

Back over preventionReported Jul 14, 2023NHTSA 23V487000
Data from NHTSA Recalls API · synced Nov 12, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

4 complaints filed with NHTSA · Mar 2024 – Jul 2026
  1. Steering3
  2. Electrical system1
  3. Service brakes1
  4. Forward collision avoidance1

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 CX-3 model year we’ve synced.

View as table
Model yearNHTSA complaints
201648
201721
201810
201927
20201
20214
Crashes reported
0
Fires reported
0
Injuries reported
0
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 12, 2026NHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Steering

3 reports
“All of the issues listed in Mazda Technical Service Bulletin 06-001/20, however this bulletin does not cover my model. Inspected by dealer, possible solution intended to be relubrication of the worm gear/worm shaft in the steering assembly. Issue presented itself in the last year and is most present while driving at high speeds, above 45 miles an hour.”
Owner complaint to NHTSAFiled Oct 28, 2024SteeringODI 11622299

Electrical system

1 report
“The instrument cluster in my 2021 Mazda CX-3 failed at approximately 50,000 miles. While driving, the vehicle displayed multiple warning lights, including Dynamic Stability Control (DSC), Smart City Brake Support (SCBS), traction control, and front camera/safety system warnings. These safety systems became unavailable due to the instrument cluster failure. An authorized Mazda dealership inspected the vehicle and attempted to reprogram (re-image) the instrument cluster, but the repair was unsuccessful. The dealership confirmed that the instrument cluster had failed internally and must be replaced. The failed component is available for inspection. Mazda Customer Experience has confirmed that the replacement instrument cluster is on national back-order and has been unable to provide any estimated availability date. As a result, I am required to continue driving a vehicle with disabled safety systems or leave the vehicle unusable for an indefinite period. I am concerned that a failed instrument cluster can disable important safety systems, including stability control and forward collision mitigation functions, and that replacement parts are unavailable. I am…”
Owner complaint to NHTSAFiled Jul 23, 2026Electrical system, Service brakes, Forward collision avoidanceODI 11752506

Service brakes

1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 12, 2026
04 —Key specs

Engines, transmissions & drive

2 versions rated by the EPA
EPA class
Compact Cars
Engines
2.0L 4-cyl
Transmissions
Automatic (S6)
Drive
Front-Wheel Drive · 4-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
CX-3 2WD
Auto (S6), 4 cyl, 2.0 L · Front-Wheel Drive
293431$1,950289
CX-3 4WD
Auto (S6), 4 cyl, 2.0 L · 4-Wheel Drive
273229$2,050303
  • CX-3 2WD
    Auto (S6), 4 cyl, 2.0 L
    29 city · 34 hwy · $1,950/yr
    31
    mpg comb.
  • CX-3 4WD
    Auto (S6), 4 cyl, 2.0 L
    27 city · 32 hwy · $2,050/yr
    29
    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
Overall rating
5/ 5
5 of 5
Mazda CX-3 SUV AWD
Frontal crash
5 of 5
Side crash
5 of 5
Side pole
5 of 5
Rollover
4 of 5
Rollover risk
13.6%
Overall
5 / 5
Mazda CX-3 SUV FWD
Frontal crash
5 of 5
Side crash
5 of 5
Side pole
5 of 5
Rollover
4 of 5
Rollover risk
13.8%
Data from NHTSA NCAP Safety Ratings API · synced Nov 12, 2026Vehicle 15170Vehicle 15164
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 CX-3 questions

How many recalls does the 2021 Mazda CX-3 have?

1 safety recall 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 Mazda CX-3 problems?

Owners filed 4 complaints with NHTSA. The most-cited components are steering (3), electrical system (1), service brakes (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2021 Mazda CX-3 get?

The EPA rates the 2021 Mazda CX-3 at 29–31 mpg combined, depending on engine and drivetrain (2 versions rated).

How safe is the 2021 Mazda CX-3?

NHTSA's New Car Assessment Program gives the 2021 Mazda CX-3 5 out of 5 stars overall.

Data from NHTSA & EPA · synced Nov 12, 2026