6.5

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
10,673 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2018 Mazda MAZDA3 drivetrain problems

drivetrain problem

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2018 Mazda MAZDA3 Owner Comments

problem #3

Dec 292023

MAZDA3

  • miles

A D V E R T I S E M E N T S

I was driving on the highway in sixth gear and went to down shift to get on to the off ramp and was unable to get it out of sixth gear. I had it towed to the dealer where they were going to charge 4 grand just to tear down the transmission to tell me what might be wrong. So I towed it home and once I was able to get the transmission open, I found the roll pin that connects the shifting shaft to the shift selector plate had worked itself out. If the transmission had been in Neutral, it would have taken less than 20 minutes to fix. But, because it was stuck in gear the whole transmission had to be taken apart.

- Indian Mound, TN, USA

problem #2

Aug 152021

MAZDA3

  • 32,000 miles
The contact owns a 2018 Mazda Mazda3. The contact stated while driving 25 MPH, the vehicle stalled inadvertently. The contact was unaware if there were any warning lights illuminated. The contact was able to veer to the side of the road; however, the vehicle failed to restart. The contact's husband added fuel to the vehicle; however, the failure persisted. The contact stated that the vehicle restarted 15 minutes later. The vehicle was taken to an unknown dealer who informed the contact that the failure could not be duplicated because there was no warning light illuminated. The vehicle was not diagnosed or repaired, and the failure persisted. The contact stated that the failure reoccurred upon shifting from reverse(R) to drive (D). The power train warning light and several unknown waring lights were illuminated. The contact was able to restart the vehicle and continued driving. The manufacturer was not notified of the failure. The failure mileage was approximately 32,000.

- North Aurora, IL, USA

problem #1

Aug 152018

MAZDA3

  • 18 miles
The contact owns a 2018 Mazda 3. the contact stated that she was experiencing different electrical failures with the vehicle. The contact stated that the passenger side seat belt warning chime sounded when the seat was unoccupied. The contact had to buckle the seat beat to stop the warning sound. In addition, both passenger side windows failed to roll up after being down. Also, while driving 40 mph, the transmission failed to respond without warning while depressing the accelerator pedal. The contact had to shift the vehicle from second into first gear in order for it to resume normal operation. The contact took the vehicle to odges Mazda at the avenues (10681 philips hwy, jacksonville, fl 32256, (904) 562-1600) where a diagnostic test was performed, but no failure was found. The failure continued and the vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 18.

- Jacksonville, FL, USA

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