9.7

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
658 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.

2020 Mazda CX-30 brakes problems

brakes problem

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2020 Mazda CX-30 Owner Comments

problem #6

Jun 262024

CX-30

  • miles

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

Front and rear brakes premature wear, would have failed safety inspection under 30,000 miles but brakes were inspected just outside of warranty with metal on metal. RIGHT rear coil spring snapped lower middle of coil while driving on flat even ground. Just outside of warranty.

- Colchester, VT, USA

problem #5

Jan 032023

CX-30

  • miles
The car was running in parking garage without ignition being turned on. When I entered the car, the motor wouldn't catch at all, and message popped up saying the there was a brake malfunction. All the lights were on, so it did not seem to be a battery problem, but the drive function was dead. Several months ago the car started racing while i was driving and i couldnt get it to stop. I finally, while still driving, turned off the ignition and rolled off the road. After a few minutes, i restarted the engine. it had stopped racing and i drove it to the Mazda dealership. They didnt find anything wrong. So this latest incident, Jan. 3rd, involved an uninitiated running vehicle that was parked, and the brake malfunction console notice that said "brake malfunction". Again, the prior incident involved the same vehicle racing on a roadway and necessitated the turning off the ignition while on a major road and rolling the car onto the shoulder. There is something wrong with this car involving the engine and brakes. Triple A came to tow it to the dealership and utilized an alternator to start it, which enabled them to drive it to the tow truck.

- Fort Pierce, FL, USA

problem #4

Apr 112022

CX-30

  • miles
While driving across Speer Blvd in Denver, CO (6 lanes) the emergency assist brake engaged and brought my car to a complete stop. There were no cars or objects ahead of me and fortunately the cars behind me were able to stop.

- Wheat Ridge, CO, USA

problem #3

Oct 302021

CX-30

  • miles

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

The Automatic Emergency Braking system is activated even if there is nothing in front of the car. The car stops on its own. This has happened 11 times. Yes, my car is available for inspection. I do not know when it's going to happen. My car has malfunctioned like this 11 times. I can get hit from behind since the car is suddenly and unexpectedly braking. The dealership has not been able to reproduce the problem. The local dealership told me that Mazda is aware of the problem, but does not know what is causing it or how to fix it. The first time I brought my car into the dealership for this issue, I was told that Mazda Headquarters instructed the dealership to NOT release my car until I completed their "Unintended Braking form". My car has only been taken to the same dealership that I purchased it from. No others have examined my car. The dashboard displays BRAKE and it sounds like someone is blowing a whistle. This happens at the same time as the car stops.

- Dunellen, NJ, USA

problem #2

Jan 242020

CX-30

  • miles
New model year and already 1.safety and emission recall 4520F potential fuel leak 2.safety recall 4420F front brake bolts may fall off 3.drive off lot 1/20 and huge air gap with heat system - defective workmanship, 4.ac in summer no good - defective workmanship these issues began in Jan 2020, date below may night be exact and more trouble has continued with A/C and now fuel tank recall and brake recall. This is not a safe vehicle anymore. Sent letter to Mazda headquarters with cc to dealership on 8/21/20. To date no response from manufacturer. I want a lifetime bumper to bumper warranty on this vehicle or full reimbursement toward a 2021 model. See image of letter sent. I should not have to worry about the safety of my vehicle with a new model. It is Mazda experiment, not mine.

- Reading, PA, USA

problem #1

Jun 292020

CX-30 4-cyl

  • 3,950 miles
I was driving car on.the highway and as I prepared to exit I braked and the car hesitated for 2 seconds before brakes engaged. Car has also had hesitation upon acceleration periodically.this has been an issue upon just a few weeks of ownership. The break issue was just recently 7-29-20 I have taken the car to the local dealership about the driving/accelaration issue twice without resolution.

- Bakersfield, CA, USA

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