There are 1 owner-reported fuel system complaints for the 2020 Mazda Mazda3in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Fuel pump, car dying out, can't turn off brake release from when it dies. Shaking when accelerating. Fuel gas issue.
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