Described herein are various embodiments for using a touch screen with polar coordinates thereon to control the movements of seats in a vehicle. An exemplary method of adjusting seats in a vehicle includes the operations of detecting a touching on a circumference of a circular graphic on a touch screen in a vehicle, wherein the circular graphic is in a polar coordinate system on the touch screen; and determining a polar angle formed by a point of the touching on the circumference of the circular graphic in the polar coordinate system. The method further includes the operations of calculating a first value and a second value associated with the polar angle, each of the first value and the second value representing a movement range in a direction; and adjusting a vehicle seat based on the first value and the second value, including simultaneously moving the vehicle seat in in a first direction indicated by the first value and a second direction indicated by the second value.