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BrakesPart report

2019 Mazda MAZDA3 Brakes Problems

Complaints
15about this part
Share
20%of 74 total for the year
Median mileage
6,250miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 15 complaints about the brakes of the 2019 Mazda MAZDA3, 20% of the 74 complaints for this model year. Where a mileage was given, the median is 6,250 miles. 1 of these say a crash was involved, according to the filers.

Example complaints

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

“The smart brake system is malfunctioning. The car slams on its brakes for no reason. No vehicle is ahead of me. I have been driving at highway speeds when this occurs and I haven't been rear ended yet. It's happened numerous times before and after I completed the recall. The condition is worse when it's raining. The car has been at the dealership for over 30 days unable to repair.”

NHTSA complaint #11364488, filed 2020-10, 400 miles

“Automatic break system malfunctions often and does a hard break. Also the perimeter sensor gets disabled numerous time out of blue while driving and stop functioning until the car restarts. The break happens without any prior indication or same situation. It just happens on the regular road as well as highway. But the highway just scares me. But there is no way I can tell Mazda with a proof.”

NHTSA complaint #11290226, filed 2019-12, 5,200 miles

“These issues been happening since the second month I owned my 2019 Mazda 3 hatchback. 1- suspensions, they're very rough & harsh., they bounce so much for no reason, I damaged one tire already while I was driving on i476 normal highway where I stepped on normal pothole ended up damaging my tire, suspensions are really dangers on all roads. 2- adaptive cruise control this feature many times almost caused an accident, rear end specially on highways. …”

NHTSA complaint #11325706, filed 2020-05, 9,500 miles

“I was accelerating after a traffic light turned green and there were no cars in front of me when the car started braking automatically and came to a full stop. Luckily the car behind me was able to stop in time but there was no warning and no reason. I could have been rear ended. I pulled over and checked the two sensors and neither one was blocked (it had snowed here recently). I'm honestly scared this could happen again and Mazda is saying there are no open recalls about this for my car and that the car is fine.”

NHTSA complaint #11384444, filed 2020-12, 8,400 miles

“Vehicle is 2 months old and the automatic emergency braking is going off in the middle of the street with no cars around. Today it went off in the middle of traffic and luckily the driver behind me was paying attention. I called the dealer to ask about servicing the recall and they said they did not have a solution. When I told them I almost got rear ended. Their response was thank goodness you didn't and if there was anything else they could help me with. Zero offers to help or concern for an obvious safety issue with this vehicle.”

NHTSA complaint #11300527, filed 2020-01, 1,300 miles

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
202418%
2023217%
202159%
202039%
20191520%
201865%
201778%
20161817%
20152822%
20142619%
20131513%
2012146%
201143%
2010386%
200987%
2008227%
2007178%
2006148%
200566%
20042819%

Other parts of the 2019 Mazda MAZDA3

Other or unknown
15 complaints
Electrical system
11 complaints
Engine
11 complaints
Transmission and drivetrain
11 complaints
Forward collision avoidance
9 complaints
Fuel system
8 complaints
Visibility (wipers, defrost, mirrors)
8 complaints
Air bags
6 complaints
Body and structure
5 complaints
Seat belts
3 complaints
Steering
3 complaints
Electronic stability control
2 complaints

← All problems reported for the 2019 Mazda MAZDA3

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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