Electrical System Related Problems of the 2021 Mazda MAZDA3

Table 1 shows one common electrical system related problems of the 2021 Mazda MAZDA3.

Table 1. Electrical System related problems of Mazda MAZDA3

Problem Category Number of Problems
Electrical System problems
6

Electrical System problem #1

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. Multiple reports from Mazda owners describe similar experiences with their vehicles unexpectedly veering to the right and accelerating without driver input. Given these recurring reports and my own experience, I strongly suspect that a manufacturing defect—whether mechanical, electronic, or software-related—may have contributed to this accident.

Electrical System problem #2

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.

Electrical System problem #3

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. I applied throttle and steered right back into the correct lane, but the car was applying torque to the wrong tires and applying a left bias to the steering. Only after I got above 25mph and held straight did the car settle. Almost caused an accident if the lane was not empty due to car unsettling itself into the left lane.

Electrical System problem #4

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 is on back order and no replacement tire was available. The vehicle then was towed back to the contact resident however was informed from the towing company that the vehicle abrupted in flames on the flat bed. The fire department was contacted and extinguished the flames. No police report was made. No injuries sustained. The contact is awaiting approval from insurance adjustor on adjustments needed to be made for the vehicle. The manufacturer was not notified of the failure. The failure mileage was approximate 2,509.

Electrical System problem #5

Tl- the contact owns a 2021 Mazda 3. The contact stated while the vehicle was at a stand still at a parking lot, when it caught fire. The fire department was able to extinguished the fire and filed a report. A police was at the location but did not file a complaint. The vehicle was drivable. The vehicle was towed at a tow lot. The contact called local dealer morong falmouth Mazda (187 us-1 #1311, falmouth, me 04105: (207) 781-4020) and was made aware of the failure. The vehicle had not been diagnosed or repaired as of yet. The manufacturer had been informed of the failure. The failure mileage was approximately 1,500. Dp.

Electrical System problem #6

Passenger side blind spot warning functions sporadically. It sometimes detects vehicles and sometimes does not while driving at the same speed.


Electrical System related problems in other Mazda MAZDA3 model year vehicles:



Safety Ratings of MAZDA3 Cars
MAZDA3 Service Bulletins
MAZDA3 Safety Recalls
MAZDA3 Defect Investigations