jpxx02

so this morning when i got to work the power steering and seats were working fine...but when i got off work i go to turn the car on and the steering wheel does not go down like its suppose to and i tried to move it from the knob also but did not work so then i tried the seat and that did not move also...does anyone know what the problem could be?? maybe a blown fuse?? if so where is the fuse box located at?? and what kinda fuse does it need? thanks for the help