my car is making a high pitch noise when I back up, could it be my brakes? on 1999 Honda Accord

When I back up in reverse my car makes a high pitch squell noise.

2 answers 1 comment
ck brake pads does it do it all the time or some car do that one time over night because of rust build up
It is a high pitch sound it doesnt screech
I dont know but it is fine when I put in drive. It is a 2007 cevy traiblazer