2010 Jeep Wrangler Owner's Manual - Page 357

356 STARTING AND OPERATING The Basics of Off-Road Driving You will encounter many types of terrain driving offroad. You should be familiar with the terrain and area before proceeding. There are many types of surface conditions: hard-packed dirt, gravel, rocks, grass, sand, mud, snow and ice. Every surface has a different effect on your vehicle's steering, handling and traction. Controlling your vehicle is one of the keys to successful off-road driving, so always keep a firm grip on the steering wheel and maintain a good driving posture. Avoid sudden accelerations, turns or braking. In most cases, there are no road signs, posted speed limits or signal lights. Therefore, you will need to use your own good judgment on what is safe and what is not. When on a trail, you should always be looking ahead for surface obstacles and changes in terrain. The key is to plan your future driving route while remembering what you are currently driving over. CAUTION! Never park your vehicle over dry grass or other combustible materials. The heat from your vehicle exhaust system could cause a fire. WARNING! Always wear your seat belt and firmly tie down cargo. Unsecured cargo can become projectiles in an off-road situation. When to Use 4L (Low) Range When off-road driving, shift into 4L (Low) for additional traction and control on slippery or difficult terrain, ascending or descending steep hills, and to increase low speed pulling power. This range should be limited to extreme situations such as deep snow, mud, steep inclines, or sand where additional low speed pulling power