NHTSA Complaint #11518124 — 2023 MAZDA CX-50

I brought my car in to get it checked as the back drivers wheel was making clicking sounds when slowing down, both with and without breaks. I spent two weeks on my own trying to see what caused the car to make the sound when driving but was only able to learn that it makes the sound when slowing down, and disappears when driving at higher speeds. When brought in, the dealership was unable to tell me anything about the issue, as they were "unable to pinpoint it". After a few days, they were able to tell me that the issue is the differential, and that they would be unable to get the part. The differential is part of the axel, and is what allows the car to turn at different speeds. This is a serious issue and the car is less than a month and a half old with less than 1500 miles on it. The car itself is brand new, has never been used by anyone other than me and is having issues this quickly. The differential was inspected by the dealership, I am unsure if it was inspected by more than one person. But they are unsure as to when this issue would be getting fixed, and that car is my only transportation. The part has yet to be inspected by anyone other than the dealership. There were no warning lamps, signs, etc, only the sound of the back wheel clicking to show that there was an issue. Again, the car is less than a month and a half old, less than 1500 miles on it and this issue is incredibly dangerous.