Hello! Changan van out of the turn can not automatically back straight, this is your four wheel alignment is not allowed. Please check your lower strut arm, directional tie rod, tie rod ball head, as well as the lower strut arm ball head, and shock absorber top rubber, whether it is loose, wear. If damaged it needs to be replaced. It is recommended to do another 4 wheel alignment, and the direction will right itself. I hope it can help you. The car problem, ask the car guru. 4S store professional technician, 10 minutes to solve.