2016 impreza

[JimSteele]

high pitched noise in rear

 

[JimSteele]

Only happens when driving very slowly. Not on the brakes or steering.

 

[garry6913]

Could be a few things such as a hard spot on the brake pad, parking brake shoes have a hard spot, parking brake shoes metal to metal, a broken piece of brake hardware, rear brake pads metal to metal, a rear brake pad clip hitting the rotor, gears in the rear end, a wheel bearing.