A box step for allowing a user to access the rear bed or box of a vehicle such as a pickup truck. The pivotable box step includes a housing that is mounted to the underside of the vehicle. The box step moves between a stowed position tucked underneath the vehicle, a rear position at the rear of the vehicle, a corner position at the rear corner of the vehicle and a side entry position at the side of the vehicle, forward from the corner entry position. The motor drives the drive assembly in opposing first and second directions to move the box step between the stowed position, the rear position, the corner position and the side entry position.