TireKick

Published dossier question

2021 Mazda Mazda3 common problems: the named, applicable issues

“Common” here means a reviewed failure syndrome in the published authority—not a frequency claim or a list ranked by raw owner-report volume.

Insufficient evidenceEvidence: Limited confidence

Insufficient evidence for a responsible candidate verdict.

Main regret risk

No named issue intersects your stated window.

Safer move

No published alternative improves on this supported verdict.

Configuration & exposure

Configuration: No reviewed 2021 configuration is available; configuration-specific conclusions are withheld.

Exposure: No verified positive production denominator is present for 2021; normalized year comparison is refused. No configuration-specific denominator is available.

Named problem dossiers

Tires:Valve safety campaign

official recall record

High severity
Whole generationSingle sourceEvidence: Limited confidence

The cited record is bound to model year 2021; no broader incidence claim is made.

Symptom
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles.
Why it matters
The official record describes a potential crash, fire, injury, or loss-of-control consequence.

Observed complaint mileage band; not an incidence probability

Reported onset roughly 4,2004,200 mi (median 4,200 mi).

Onset band unknown.

Based on 1 usable report (2 censored). Complaint mileage is an observed report band, not a population incidence estimate.

What to inspect

  • Check the VIN for open NHTSA actions, then ask the inspector to test the named system and document the result.

Pro check: Independent pre-purchase inspection.

Mitigation

  • Verify the campaign status by VIN and retain the completion receipt if the remedy was performed.

Verified 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.

1 evidence receiptShow ▾
clm_mazda-mazda3-2021-recall-recall-21v101000-obs-62332021 Mazda Mazda3Evidence: Limited confidence

The official record describes a potential crash, fire, injury, or loss-of-control consequence.

“Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve. 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 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.”
NHTSArecallOpen source record

Published from release rel_v4_cohort_20260726 with methodology m1-v4-authority-cohort. Open the full model-year authority →