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Electrical systemPart report

2021 Mazda MAZDA3 Electrical system Problems

Complaints
7about this part
Share
13%of 54 total for the year
Median mileage
1,700miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the electrical system of the 2021 Mazda MAZDA3, 13% of the 54 complaints for this model year. Where a mileage was given, the median is 1,700 miles. 1 of these say a crash was involved and 2 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“During the incident, the vehicle exhibited an uncontrollable malfunction—the steering wheel suddenly jerked sharply to the right while accelerating violently, leaving me unable to steer or brake effectively, the car was looking forward. The car ultimately came to a stop upon colliding with a truck parked diagonally in front of me. After impact, I observed that the front tires remained stuck in a turned-right position, with the steering wheel also locked in that position. This was not an isolated event. …”

NHTSA complaint #11645615, filed 2025-02

“Context: ADAS was not on. Lane keep assist is disabled in system settings entirely as it is dangerous. Blinkers were on, I was pulling out from parallel parking into left turn lane onto a straight road with slight incline. Car is of the Turbo trim on stock tires. Upon finishing pulling out of parallel parking spot and gassing the car, torque vectoring or some underlying collision avoidance may have phantom activated. I felt torque shift to the wrong tires, unsettling the car, and the wheel -- with no human input -- jerked to the left to force me into the lane left of intended. …”

NHTSA complaint #11448467, filed 2022-01

“The driver window, upon attempted to be let up, will start to go up then go all the way down, ignoring the function to go up. This is a safety concern, as harsh temperatures and foreign objects are able to enter the vehicle cabin at any time, including driving. The problem has been reproduced by a dealer, and the vehicle is available for inspection upon request. There are no warning indicators for this issue beyond witness the failure occur in real time.”

NHTSA complaint #11644043, filed 2025-02

“The contact owns a 2021 Mazda Mazda3. The contact stated that while driving at various speeds the passenger front side tire was flat which caused the contact to veer to the shoulder. The contact towed the vehicle to the dealer where the tire was inspected as the technician informed the contact that the tire was on backorder and no replacement tire was available. The vehicle then was towed back to the contact resident however was informed by the towing company that the vehicle abrupted in flames on the flatbed. The fire department was contacted and extinguished the flames. …”

NHTSA complaint #11431973, filed 2021-09, 2,509 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2024542%
2023325%
2022521%
2021713%
202039%
20191115%
20183027%
20172024%
20162221%
20152418%
20142720%
20133227%
20122511%
20111511%
2010507%
200954%
2008176%
2007199%
20062113%
20051718%
200486%

Other parts of the 2021 Mazda MAZDA3

Engine
19 complaints
Forward collision avoidance
7 complaints
Other or unknown
7 complaints
Brakes
5 complaints
Air bags
4 complaints
Transmission and drivetrain
4 complaints
Lane departure
3 complaints
Fuel system
2 complaints
Body and structure
2 complaints
Suspension
2 complaints
Vehicle speed control
2 complaints
Wheels
2 complaints

← All problems reported for the 2021 Mazda MAZDA3

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology