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Mazda3 and CX-30 Tire Valves May Leak Air

NHTSA campaign 21V101000 · Reported Feb 22, 2021 · Mazda North American Operations

critical How serious is it? About this label

A sudden air leak from a tire can cause you to lose control of the vehicle, increasing the risk of a crash. The notice does not tell owners to stop driving.

Key facts

NHTSA campaign number	21V101000
Reported to NHTSA	Feb 22, 2021
Manufacturer	Mazda North American Operations
Part affected	Tires:valve
Vehicles covered	2 model/year combinations, model years 2021
Do-not-drive advisory	No
Park-outside advisory	No
Repair	Free at any franchised dealer

What's wrong, in plain English

In some Mazda3 and CX-30 vehicles, air may suddenly leak from a tire's air valve.

What you should do

1. Check your VIN at nhtsa.gov/recalls.
2. Contact a Mazda dealer, or call 1-800-222-5500 (Option 4), to have all four tire air valves replaced.
3. The repair is free of charge.

Where do I find my VIN, and what do I tell the dealer?

Your VIN is the 17-character code on the lower left of the windshield, on your registration and usually on your insurance card. Enter it at nhtsa.gov/recalls to see whether this recall is still open on your car. When you call the dealer, say you have an open safety recall and give them NHTSA campaign number 21V101000. More in how recalls work.

Affected vehicles (2)

2021 Mazda CX-30
2021 Mazda MAZDA3

Who to contact

Mazda — official Mazda recall lookup

Customer service: 1-800-222-5500

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

Other Mazda MAZDA3 recalls

May 29, 2025Mazda3 and CX-30 Air Bags May Not Deployhigh
Sep 3, 2024Mazda Camera Fault May Disable Safety Systemshigh
Oct 26, 2023Mazda3 Backup Camera Display May Go Blankmedium
Jul 14, 2023Mazda3 and CX-3 Rearview Camera May Malfunctionhigh
Nov 12, 2021Mazda Fuel Pump May Fail and Stall Enginehigh
Jun 12, 2020Mazda CX-30/Mazda3 Front Brake Caliper Bolts Loosehigh

All 15 MAZDA3 recalls

Official notice

Component: TIRES:VALVE
Summary: Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Safety risk: 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.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.