If you have been in a car accident or truck accident due to icy conditions, the insurance company is not going to give you a break because you lost control on an icy patch you couldn't see. You have to maintain sufficient distance from the car in front of you to avoid colliding whether it is icy or not. Therefore, keep much more distance between your car and the car in front of you when it is snowing or there are icy conditions! The best thing to do is to NOT go out on the road at all if conditions are icy, but if you must drive during and ice or snow storm, be very cautious to avoid driving too close to the vehicle ahead of you.