On the pass seat, look under it and see if anything is loose.
Should be a wire/rod that engauges the lock mech in the side rails, if this is stuck or loose it wont lock and the seat will move around. Also a spring that can break or come loose.
Should be fixable without buying a new seat.
On the drivers seat motor, again you'll have to take a look under the seat and see if things are loose or blocking the motor from moving.
Both of these are typical when things get pushed under the seat(s).
My children are good about stuffing thier beverage bottles under mine and jambing the seat mech or knocking of some.
The cig lighter fuse is in the under hood fuse box, think its #34, the lid to this box says which is which also.
Hope that helps and Happy Holidays!
