You’re driving your 4×4 on a snowy road when, suddenly, you notice the road bends to the right. You slam on the brakes and crank the steering wheel to the right. But the truck continues to plow a straight line; in fact, it’s headed for a tree. Would you know how to handle this? Control of a 4×4 is determined by three factors: steering, acceleration, and braking. You can use all three in slippery conditions, but only one at a time. • Here are two of the most common situations you may face on snow or gravel.