2021 Mazda CX-30
The Verdict
Worst problem area
Engine
Engine leads by volume: 49 of 100 complaints (49%) mention it. Complaints mentioning Driver Assistance & Speed Control include more crash reports (7) than those mentioning any other identified area.
Complaints filed rose from 33 in 2020 to 100 in 2021.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2020 | 2021 | 2022 | 2023 | vs. 2021 Small Sport Utility Vehicle 4WD |
|---|---|---|---|---|---|
| Annual fuel cost ($) | 2,250–2,400 | 2,250–2,500 | 2,400–2,500 | 2,150–2,500 | |
| Combined MPG | 26–28 | 25–28 | 25–26 | 25–29 | |
| City / Highway MPG | 24–25 / 31–33 | 22–25 / 30–33 | 22–24 / 30–31 | 22–26 / 30–33 | |
| CO₂ tailpipe (g/mi) | 313–334 | 313–353 | 334–353 | 309–353 | |
| Complaints filed | 33 | 100 | 33 | 23 | |
| Recalls issued | 3 | 2 | 1 | 1 | |
| Crash-involved complaints | 1 | 10 | 4 | 5 | |
| Fire-involved complaints | 0 | 0 | 0 | 0 | |
| Injuries reported | 0 | 13 | 3 | 2 | |
| Deaths reported | 0 | 0 | 0 | 0 | |
| Configurations compared | 2 | 3 | 2 | 2 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2021 Mazda CX-30 have?
2 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2021 Mazda CX-30?
Engine: 49 of 100 NHTSA complaints (49%) mention it.
What gas mileage does the 2021 Mazda CX-30 get?
EPA rates it 25–28 MPG combined.
How much does it cost to fuel a 2021 Mazda CX-30?
EPA estimates $2,250–$2,500 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (5)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (S6) | 4 | 2.5L | Front-Wheel Drive | Regular | Small Sport Utility Vehicle 2WD | 25 mpg (high) | 33 mpg (high) | 28 mpg (high) | $2,250 (low) | 313 g/mi (low) |
| Configuration 2 | Automatic (S6) | 4 | 2.5L | 4-Wheel Drive | Regular | Small Sport Utility Vehicle 4WD | 24 mpg | 31 mpg | 26 mpg | $2,400 | 334 g/mi |
| Configuration 3 | Automatic (S6) | 4 | 2.5L | Front-Wheel Drive | Regular | Small Sport Utility Vehicle 2WD | 25 mpg (high) | 33 mpg (high) | 28 mpg (high) | $2,250 (low) | 319 g/mi |
| Configuration 4 | Automatic (S6) | 4 | 2.5L | 4-Wheel Drive | Regular | Small Sport Utility Vehicle 4WD | 24 mpg | 31 mpg | 26 mpg | $2,400 | 341 g/mi |
| Configuration 5 | Automatic (S6) | 4 | 2.5L | 4-Wheel Drive | Regular | Small Sport Utility Vehicle 4WD | 22 mpg (low) | 30 mpg (low) | 25 mpg (low) | $2,500 (high) | 353 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 49 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 8 | 0 | 0 | 0 | 0 |
| Fuel System | 3 | 0 | 0 | 0 | 0 |
| Electrical | 13 | 0 | 0 | 0 | 0 |
| Brakes | 8 | 4 | 0 | 1 | 0 |
| Steering | 1 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 2 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 4 | 3 | 0 | 6 | 0 |
| Driver Assistance & Speed Control | 18 | 7 | 0 | 6 | 0 |
| Body, Seats & Latches | 4 | 0 | 0 | 1 | 0 |
| Visibility & Lighting | 12 | 0 | 0 | 0 | 0 |
| Other | 10 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (2)
TIRES:VALVE · Campaign 21V101000 · Feb 22, 2021
Defect: Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Consequence: A sudden air leak from the tire air valve may cause a loss of vehicle control while driving, increasing the risk of a crash.
Remedy: Mazda will notify owners, and dealers will replace all four tire air valves with new parts, free of charge. The recall began April 6, 2021. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 4721B.
STRUCTURE:BODY:HATCHBACK/LIFTGATE · Campaign 21V086000 · Feb 18, 2021
Defect: Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-30 vehicles. When fully opened, the power liftgate may partially lower unexpectedly when the vehicle is parked facing uphill on a slope.
Consequence: If the power liftgate unexpectedly lowers while a person is accessing the rear storage area of the vehicle, it can increase their risk of injury.
Remedy: Mazda will notify owners, and dealers will update the power liftgate control module software and inspect the serial number of the power liftgate drive unit, replacing it if necessary, free of charge. The recall began April 8, 2021. Owners may contact Mazda customer service at 1-800-222-5500 option 4. Mazda's number for this recall is 4621B.