There are 1 owner-reported body & structure complaints for the 2020 Mazda Mazda3in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
WATER COMING INTO CABIN FROM DRIVER DOOR WINDOW. BROUGHT IT TO MAZDA SERVICE CENTER THREE TIMES AND THEY CANNOT FIGURE OUT WHERE WATER IS COMING FROM. WATER POOLS IN THE DOOR WHEN IT RAINS AND SEEPS INTO THE CABIN.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026