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.

Asked by for the 1999 Honda Accord
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
1 more answer
I dont know but it is fine when I put in drive. It is a 2007 cevy traiblazer