The Seat moves backward and the Steering Wheel goes high when the vehicle is turned off. When turning everything back on and starting the engine, normally they will not return. Once in a while they do return, about one time every several days.
did you just buy the car? is it used or new?
what model year is it?
has the seat ever worked normally?
there is a setting in the car that you can turn off so this feature does not happen. have you tried turning that off to see if this at least stops the feature from working?
can you move the seat with the switches and save them into memory? does the memory keep the setting or does it revert back to the previous setting?
could lbe a faulty BCM or some sensor but again need more info.