1995 GMC Jimmy Owner's Manual - Page 184

Then here are some tips: Make sure your vehicle is well ventilated, with a comfortably cool interior. 0 Keep your eyes moving. Scan the road ahead and the sides. Check to your mirrors and your instruments frequently. If you get sleepy, pull offthe road into a rest, service, or parking area and take a nap, get some exercise, or both. For safety, treat drowsiness on the highway as an emergency. Hill and Mountain Roads Driving on steep hills or mountains is differentfrom driving in flat or rolling terrain. If you drive regularly in steep country, or if you're planning to visit there, here are some tips that can make your trips safer and more enjoyable. (See "Off-Road Driving" in the Index for information about driving off-road.) Keep your vehicle in good shape. Check all fluid levels and also the brakes, tires, cooling system and transmission. These parts can work hard on mountain roads. 0 Know how to go down hills. The most important thing to know is this: let your engine do some of the slowing down. Shift to a lower gear when you go down a steep or long hill. 4-30