2003 Pontiac Grand Prix Owner's Manual - Page 207

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 or long hill. Coasting downhill in NEUTRAL (N)or with the ignition off is dangerous. Your brakes have will to do all the work of slowing down. Theycould 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. you don't shi-- Aown, your - _ -._es co - , t e 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... Know howto go uphill. You may want shift down to to a lower gear. The lower gears help cool your engine and transaxle, and you can climb the hill better. Stay in your own lane when driving on two-lane roads in hills or mountains. Don't swing wide or cut across the center of the road. Drive at speeds that let you stay in your own lane. As you go over the top a hill, be alert. There of could be somethingin your lane,like a stalled car or an accident. You may see highway signs on mountains that warn of special problems. Examples are long grades, passing or no-passing zones, afalling rocks area or winding roads. Be alertto these and take appropriate action. 4-26