2021 Mazda CX-30, 2021 Mazda MAZDA3 Recall: Air may suddenly leak from the tire air valve
NHTSA campaign 21V101000 · Tires · filed Feb 22, 2021 · verified Jul 30, 2026
The defect
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
The 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.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
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.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
Related recalls
More Mazda CX-30 recalls
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- 2024 Mazda CX-30 and 2 other models — A malfunction in the forward sensing camera (FSC) may…
- 2022–2023 Mazda CX-30 and 1 other model — Anti-lock brake system (ABS) Hydraulic Control Unit (HCU)…
- 2020–2021 Mazda CX-30 — When fully opened, the power liftgate may partially lower…
- 2020 Mazda CX-30 — Evaporative vent hose for the fuel tank may be…
Other campaigns involving Mazda vehicles
Source: NHTSA recall database, campaign 21V101000 (manufacturer number 4721B). Data last verified Jul 30, 2026.