A vehicle including a tire and a vehicle height adjusting device, the vehicle height adjusting device comprising: a vehicle height adjusting unit configured to set a vehicle height to a first state or a second state, the first state being a state in which the tire of the vehicle is suspended at a predetermined position with respect to a vehicle body in a vehicle up-down direction, and the second state being a state in which the tire is suspended at a position closer to the vehicle body in the vehicle up-down direction than in the first state; a prediction unit (40; 76; 66; 86) configured to predict whether a lower portion of the vehicle interferes with a road surface in the second state; a vehicle height control unit (42; 78; 68; 42) configured to control the vehicle height adjusting unit such that the vehicle height adjusting unit sets the vehicle height to one of the first state and the second state, and that restricts a transition from the first state to the second state by the vehicle height adjusting unit when the prediction unit (40; 76; 66; 86) predicts an interference between the lower portion of the vehicle and the road surface; and an air pressure detecting unit configured to detect an air pressure of the tire, characterized by a calculation unit configured to calculate a remaining interference time until the lower portion of the vehicle interferes with the road surface, based on a rate of decrease in the air pressure of the tire, wherein the prediction unit is configured to compare the detected air pressure with a predetermined threshold, and when the detected air pressure is smaller than the predetermined threshold and the remaining interference time that has been calculated is shorter than a predetermined time, predicts the interference between the lower portion of the vehicle and the road surface. a vehicle height adjusting unit configured to set a vehicle height to a first state or a second state, the first state being a state in which the tire of the vehicle is suspended at a predetermined position with respect to a vehicle body in a vehicle up-down direction, and the second state being a state in which the tire is suspended at a position closer to the vehicle body in the vehicle up-down direction than in the first state; a prediction unit (40; 76; 66; 86) configured to predict whether a lower portion of the vehicle interferes with a road surface in the second state; a vehicle height control unit (42; 78; 68; 42) configured to control the vehicle height adjusting unit such that the vehicle height adjusting unit sets the vehicle height to one of the first state and the second state, and that restricts a transition from the first state to the second state by the vehicle height adjusting unit when the prediction unit (40; 76; 66; 86) predicts an interference between the lower portion of the vehicle and the road surface; and an air pressure detecting unit configured to detect an air pressure of the tire, characterized by a calculation unit configured to calculate a remaining interference time until the lower portion of the vehicle interferes with the road surface, based on a rate of decrease in the air pressure of the tire, wherein the prediction unit is configured to compare the detected air pressure with a predetermined threshold, and when the detected air pressure is smaller than the predetermined threshold and the remaining interference time that has been calculated is shorter than a predetermined time, predicts the interference between the lower portion of the vehicle and the road surface.