Towmatch

If it has one, a easy twist can unlock the axle, else you will have to unlock the axle manually, in order to tow the car. Controlling the movement of the tires of the car being towed is important.
http://landentelx551.angelfire.com/index.blog/1739888/10-wrong-answers-to-common-24h-towing-questions-do-you-know-the-right-ones/