Tires: valve (Mazda)
Vehicle recall 21V-101. NHTSA received Mazda North American Operations’s report on Feb 22, 2021.
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The short answer
NHTSA received Mazda North American Operations’s report on Feb 22, 2021. Copied from NHTSA on Oct 28, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
A sudden air leak from the tire air valve may cause a loss of vehicle control while driving, increasing the risk of a crash.
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles.
Air may suddenly leak from the tire air valve.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Tires: valve.
What should you 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.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- How to reach the firm: 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.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 599 vehicles potentially involved, across everything this recall names.
Each model year opens its own page: every recall naming it, its owner complaints and its crash ratings.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
Who is recalling it?
- Made by Mazda North American Operations.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt. Owners’ complaints are counted on each vehicle’s page.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.