In this animation, effects of different location of center of gravity (CoG) on the dynamic behavior of the GTS heavy vehicle model which is subjected to crosswind are presented. CoG are located at 50%, 63% and 75% on the wheel base of the GTS away from its front part. Vehicle velocity is 25 m/s. Maximum velocity of the crosswind is 9 m/s so that it produces max 20o yaw angle. Length of the crosswind is 5 times the length of the GTS vehicle.