1997 Pontiac Bonneville Owner's Manual - Page 198

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. Keep your vehicle in good shape. Check all fluid levels and also the brakes, tires, cooling system and transaxle. These parts can work hard on mountain roads. 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 orlong hill. Coasting downhill in NEUTRAL (N) or with the ignition off is dangerous. Your brakes will have to do all the work of slowing down. They could get so hot that they wouldn't work well. You would then have poor braking or even none going down a hill. You could crash. Always have your engine running and your vehicle in gear when you go downhill. Know how to go uphill. Drive in the highest gear possible. Stay in your own lane when driving on two-lane roads in hills or mountains. Don't swing wideor cut across the center of the road. Drive at speeds that let you stay in your own lane. As you go over the top of a hill,be alert. There could be something in your lane, like a stalled or an accident. car If you don't shift down, your brakes could get so hot that they wouldn't work well. You would then have poor braking or even none going down a hill. 'You could crash. Shift down to let your engine assist your brakes on a steep downhill slope. You may see highway signs on mountains that warn of special problems. Examples are long grades, passing or no-passing zones, a falling rocks area or winding roads. Be alert to these and take appropriate action. 4-25 -