1994 GMC Jimmy Owner's Manual - Page 173

Controlling your vehicleis the key to successful off-road driving.One of the best ways to control your vehicle is to control your speed. Here are some things to keep in mind. At higher speeds: 0 you approach things faster and you have less time to scan the terrain for obstacles. you have less time to react. you have more vehiclebounce when you drive over obstacles. you'll need more distancefor braking, especially since you're on an unpaved surface. 0 0 Scanning the Terrain Off-road driving can take you over many different kindsof terrain. You need to befamiliar with the terrain andits many different features. Here are some things to consider. Surface Conditions. Off-roading can take you over hard-packed dirt, gravel, rocks, grass, sand, mud, snow or Each of these surfaces affects ice. the steering, acceleration, and braking of your vehicle in different ways. Depending upon the kind of surface you are on, you may experience slipping, sliding, wheel spinning, delayed acceleration, traction, and poor longer braking distances. Surface Obstacles.Unseen or hidden obstacles can be hazardous.rock, A log, hole, rut,or bump can startle you if you're not prepared for them. Often these obstacles are hidden by grass, bushes, snow or even the rise and fall of the terrain itself. Here are some things to consider: Is the path ahead clear? Will the surface texture change abruptly up ahead? Does the travel takeyou uphill or downhill? (There's more discussion of these subjects later.) Will you have to stop suddenlyor change direction quickly? When you driveover obstacles or rough terrain, keepa firm grip on the steering wheel. Ruts, troughs, or other surface features can the wheel jerk out of your handsif you're not prepared. 4- 15