Brake Disc Caliper problems of the 2013 Mazda CX-5

Purchased used 2013 Mazda Cx-5 in December 2015. April 2017 had rear brake pads and rotors replaced due to rust. Screeching began, again, end of June 2019 while driving normal speeds. Continued to get worse, braking and not braking at any speed. Mechanic stated that the rear pads and rotors needed to be replaced due to rust, with the left-side being extremely worse than the right. Said the caliper might have gone bad. Couldn't explain how this would happen in 2 years. Did not mention any notices for this from Mazda or how to prevent this from happening again.

Without any advance warning my rear brakes began screeching. I am now operating with rear brakes that are metal on metal. I spoke with the service manager at the dealership where I purchased the vehicle and he said it's normal for brakes to wear out and it is probably not from a stuck caliper. This began happening one week ago during normal usage.

The contact owns a 2013 Mazda Cx-5. When the brakes were engaged, an abnormal noise emitted from the rear of the vehicle. The vehicle was taken to a dealer, where it diagnosed that the rear passenger side caliper, the rear driver side and passenger side rotors and brake pads needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 31,000.

I first started hearing this screeching noise back in may 2015, after which I took it to the dealership thinking whatever it was could be covered under warranty. They came back saying that it was due to not having any rear brake pads left and my rotors were severely damaged. Unfortunately, this was due to normal wear and tear and not covered under warranty. After fixing this, in August 2015, I started to hear the noise again. Took it back to the same dealership complaining about the same noise. This time, they stated that it was my front brake pads. Got this fixed as well. Now it is September, and I hear the same exact screeching noise as I heard in may. I decided to have it checked at another dealership but unfortunately, due to how the prior dealership used an air impact wrench to put on my wheel locks, they were not able to remove them. It actually stripped the key and now I am stuck with another problem to fix. While there, we asked if this might be the reason behind the screeching that we hear, but the mechanic stated that there is a service bulletin out on the rear calipers, etc and to fix it if a customer complains. Now my complaint is how is a customer supposed to be aware of this if it is not made known to us. . . And instead, the dealerships trick us into repeatedly returning to have it checked, taking time out of our busy work schedules. I also don't agree with at only 30k, I had to have all my brake pads changed already! all the other cars I've had, I did at around 50k.

Rear brake pads and rotors completely worn, calipers sticking before 40,000 miles were even on the car. Back up camera stopped working around 34000 miles. . Dealer said there is a pin hole in camera.