2021 Mazda CX-30
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2021 Mazda CX-30 is worth — from official NHTSA and EPA data. 769 on record.
2021 Mazda CX-30 at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
2021 Mazda CX-30 recalls 2
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Fix: 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.
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.
Fix: 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 …
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
2021 Mazda CX-30 common problems
The most-reported problem areas across all 101 owner complaints filed with NHTSA — and what to check before you buy.
2021 Mazda CX-30 safety ratings
Rollover risk: 14.7% — NHTSA's estimated chance of rollover in a single-vehicle crash (dynamic test: no tip).
Source: NHTSA 5-Star Safety Ratings (NCAP), tested as the 2021 Mazda CX-30 SUV AWD. Ratings can differ by body style and drivetrain.
2021 Mazda CX-30 MPG & running costs
Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 5 versions of this model year; combined is shown as a range and the other figures are averages.
Estimated 5-year cost to own
A rough guide to what running a 2021 Mazda CX-30 costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Investigations & service bulletins
Manufacturer service bulletins 616
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 616.
Mazda Connected Services - Frequently Asked Questions (FAQ) This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-042/26 06/30/26 DESCRIPTION Frequently Asked Questions (FAQ) Index General Questions MAZDA C…
Bulletin SA-042-26a · Electrical System · Sep 2026DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket device…
Bulletin SA-041-26a · Electrical System · Sep 2026This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 08/18/26 and 06/15/26 DESCRIPTION Some customers may complain about any of the following: 1. Infotainment Center Display does not provi…
Bulletin SA-038-26b · Electrical System · Sep 2026This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 06/15/26 DESCRIPTION Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Author…
Bulletin SA-038-26a · Electrical System, Exterior Lighting, Engine · Sep 2026This Service Alert supersedes the previously issued Service Alerts listed below: The changes are noted in Red. Infotainment Reboot With Navigation Card Installed This Service Information is no longer valid. Refer to the following updated Technical Service Bull…
Bulletin SA-054-26 · Electrical System · Aug 2026This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red text. SA-039/26 06/15/26 Mazda Connect Symptom Troubleshooting DESCRIPTION Customers having MAZDA CONNECT concerns should have their vehicle repaired using the…
Bulletin SA-039-26a · Electrical System · Aug 2026This Service Alert supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. SA-006/23 01/23/23 DESCRIPTION Some customers may complain about the infotainment system and/or the MyMazda App showing incorrect clock and/or tire…
Bulletin SA-053-26 · Electrical System, Wheels · Aug 2026DESCRIPTION Some customers may complain about SiriusXM Travel Link, Traffic Plus showing expired even though the customer purchased a paid subscription. SiriusXM audio packages do not include SiriusXM Travel Link, Traffic Plus. To get Traffic Plus, the custome…
Bulletin SA-052-26 · Aug 2026This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. 01-012/22 10/06/22 DESCRIPTION Some vehicles may exhibit accumulation of dried coolant (1) around the water pipe (2). This is caused by a gap between th…
Bulletin 01-010-26 · Engine · Aug 2026DESCRIPTION Some customers may complain that the electric power steering warning light illuminates after engine start and DTC U2011:1C is stored. Zinc-plated whisker may form inside the EPS motor and trigger the DTC. However, since it is cleared when power is…
Bulletin 06-001-26 · Steering, Electrical System · Jul 2026Source: NHTSA Office of Defects Investigation, listed for the CX-30 FWD. Model-year data, not specific to one car.
Canadian recalls 2
Transport Canada recall campaigns for the 2021 Mazda CX-30. Relevant if the car was first sold in, or imported from, Canada.
Wheels
Issue: On certain vehicles, the valve stem for the tires may have been damaged during assembly. As a result, the tires could slowly or suddenly lose air pressure while driving. Safety Risk: A loss of tire pressure could cause a loss of control and increase the risk of a crash. Corrective Actions: Mazda will notify owners by mail and instruct you to take your vehicle to a dealer…
Transport Canada #2021091 · Feb 2021Structure
Issue: On certain vehicles, the power liftgate may partially lower from the fully open position when the vehicle is parked facing uphill on a slope. The liftgate will not lower all the way to the closed position. Safety risk: A liftgate that partially lowers suddenly could create a risk of injury. Corrective action: Mazda will notify owners by mail and instruct you to take your…
Transport Canada #2021075 · Feb 2021Source: Transport Canada Motor Vehicle Safety Recalls Database.
About the Mazda CX-30
The Mazda CX-30 is a subcompact crossover SUV produced by Mazda. Based on the fourth-generation Mazda3, it debuted at the 2019 Geneva Motor Show, to slot in between the CX-3 and the CX-5. It went on sale in Japan on 24 October 2019, with global units being produced at Mazda's Hiroshima factory, North and South American units built in Salamanca, Guanajuato, Mexico, Thailand and initial Australian units made at the AutoAlliance Thailand plant in Rayong, and China-market units produced in Nanjing by Changan Mazda.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.
2021 Mazda CX-30 trims & engines on record
2021 Mazda CX-30 vehicles on record
2021 Mazda CX-30 Premium Plus Package3MVDMBEY6MM245077
2021 Mazda CX-30 Premium Package3MVDMADL3MM300536
2021 Mazda CX-30 Premium Plus Package3MVDMBEY4MM303400
2021 Mazda CX-303MVDMBAY6MM309494
2021 Mazda CX-303MVDMBDL1MM305515
2021 Mazda CX-303MVDMBDYXMM307047
2021 Mazda CX-303MVDMAAL4MM270368
2021 Mazda CX-303MVDMBCL2MM265463
2021 Mazda CX-303MVDMBDY5MM265080
2021 Mazda CX-30JMZDMEW7A00221279
2021 Mazda CX-30JMZDM6WGA00214140
2021 Mazda CX-30JMZDM6WGA00210874
2021 Mazda CX-303MVDMBDL6MM250205
2021 Mazda CX-303MVDMBDL6MM306627
2021 Mazda CX-30JMZDM6WGA00215009
2021 Mazda CX-303MVDMBBL7MM268621
2021 Mazda CX-303MVDMBBL0MM246248
2021 Mazda CX-303MVDMADL7MM266424
2021 Mazda CX-303MVDMBEY4NM400193
2021 Mazda CX-303MVDMBAL5MM254086
2021 Mazda CX-303MVDMBAY2MM308004
2021 Mazda CX-303MVDMBEY9MM262293
2021 Mazda CX-303MVDMBDL8MM316253
2021 Mazda CX-303MVDMACL8MM304101