The invention relates to a projection orientation correction system for a vehicle utilizing a projection device, and also relates to a method. The method includes the steps: receiving an indication ofa destination from a user; determining a route from a current position of a vehicle to the destination; projecting an image of the determined route from the current position of the vehicle to the destination onto ground nearby the vehicle using a projection device equipped in the vehicle; and rotating the projected image such that the projected image is oriented in accordance with the determinedroute.