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Mazda3 and CX-30 tire valves may leak air

NHTSA campaign 21V101000 · Reported 2021-02-22 · Mazda North American Operations

high How serious is it? About this label

Serious — a sudden air leak can cause loss of control and a crash; the notice does not tell owners to stop driving, but the repair should not be put off.

What's wrong, in plain English

On certain 2021 Mazda3 and CX-30 cars, the small valve you use to add air to a tire can suddenly let air escape. A tire that loses air quickly while you are driving can make the car pull or become hard to steer, and you may not get much warning before it happens. Mazda is replacing the valves on all four tires so the problem cannot occur.

What you should do

1. Look up your VIN at nhtsa.gov/recalls to check whether your car is included. 2. Contact a Mazda dealer or Mazda customer service at 1-800-222-5500, Option 4 (recall 4721B). 3. Have all four tire air valves replaced — the repair is free.

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.

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.