Vehicle recall 21V101000 · February 22, 2021
Mazda CX-30 and Mazda3
Air may suddenly leak from the tire air valve.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- 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.
- Notes
- 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.
Recall details
- NHTSA campaign
- 21V101000
- Reported to NHTSA
- February 22, 2021
- Filed by
- Mazda North American Operations
- Manufacturer campaign
- 4721B
- Owner notification
- April 6, 2021
- Vehicles potentially affected
- 599
- Initiated by
- the manufacturer
- Components
- Tires › Valve
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mazda CX-30 (2021): 2021
- Mazda Mazda3 (2021): 2021
Has your Mazda been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. Recall repairs are free.