Brake Disc Caliper problems of the 2015 Mazda MAZDA3

I've had to replace back brakes twice in 4 years. Now calipers have gone out which ruined rotors and pads. It looks like others have had the same issue with calipers not working properly and wearing the brakes prematurely.

Like many other Mazda 3 owners, I have had water enter my calipers and bind, leaving brakes activated on the rotors wearing down the brakes faster than normal. Approx 65,000 miles on my car and I am currently getting my third set of brakes and rotors installed on my vehicle, with new calipers that is not covered under the recall. After contacting Mazda, my VIN specific does not qualify for this recall. This issue is known from Mazda and should be extended to all models.

I started noticing a squeal from my rear brakes that would occur at the beginning of driving (not while braking) then go away after 1 or 2 stops. About a week and a half later, the day I used my handbrake to park, after my 25 minute commute home I noticed a hot metal smell. I put my hand up to my driver side rear wheel and felt intense heat from the brakes. Saw the rotors were dug in. I bought rear brakes and rotors and changed them out myself. The parking brake actuator shaft was stuck, binding the brakes on both rear calipers. The metal around the boot of both shafts on the caliper look wet. The piston of the caliper was easily rotated back in after unbinding the parking brake actuator shaft. Parking brake now is unhooked due to it being unsafe. This happened on both parking brake actuator shafts on the rear calipers after only 24,900 miles.

Passenger side rear brake caliper does not retract properly and wears out brake pads quickly. This should not hapen at less than 50,000 miles. I have seen numerous complaints online and there is a recall for this year, but it does not include my VIN.

Nhtsa recall number:17v-393 manufacturer recall number:1217f recall issued June 22, 2017 no manufacturer fix available, yet as of October 27, 2017 summary on the mechanical (cable) type parking brake, water may enter the brake caliper due to inappropriate sealing performance of the rear brake caliper protective boot, particularly under low temperature conditions, and the parking brake actuator shaft, which is the component of rear brake caliper, may be rusted. Safety risk descrpition if the vehicle continues to be used with such condition, the rust may progress, increasing the sliding resistance of the actuator shaft. In extreme cases, the rusted actuator shaft may get stuck in the brake caliper body, causing brake dragging while driving and decreasing the parking brake holding force, which may result in unexpected movement of vehicle if parked on a slope, increasing the risk of a collision. Remedy your Mazda dealer will check the parking brake actuator shafts inside the left and right rear brake calipers. If the actuator shaft is found to be rusted, the brake caliper assembly will be replaced with a modified one. If no rust is found on the actuator shaft, the protective boot will be replaced with a modified one. The inspection and repair will be performed at no cost to you. Recall status recall incomplete. Remedy not yet available.

The contact owns a 2015 Mazda 3. The contact stated that the brakes did not function as intended unless the brake pedal was depressed excessively. The brake warning indicator illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the calipers were defective and needed to be replaced. The contact received notification of NHTSA campaign number: 17v393000 (parking brake); however, the parts to do the repair were unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. Anything Mazda (5576 pleasant view rd, memphis, TN) was contacted and confirmed that the parts were not available for the recall remedy. The manufacturer was not made aware of the issue. The failure mileage was approximately 68,000. VIN tool confirms parts not available.

On the mechanical (cable) type parking brake, water may enter the brake caliper due to inappropriate sealing performance of the rear brake caliper protective boot, particularly under low temperature conditions, and the parking brake actuator shaft, which is the component of rear brake caliper, may be rusted. If the vehicle continues to be used with such condition, the rust may progress, increasing the sliding resistance of the actuator shaft. In extreme cases, the rusted actuator shaft may get stuck in the brake caliper body, causing brake dragging while driving and decreasing the parking brake holding force, which may result in unexpected movement of vehicle if parked on a slope, increasing the risk of a collision.