1997 GMC Safari Owner's Manual - Page 191

Here are some tipson night driving. 0 0 0 0 0 0 0 Drive defensively. Don't drink and drive. Adjust your inside rearviewmirror to reducethe glare from headlamps behind you. Since you can't see aswell, you may need to slow down and keep more space between you and other vehicles. Slow down, especially on higher speed roads. Your headlamps can light up only so much road ahead. In remote areas, watch for animals. If you're tired, pulloff the road in a safe place and rest. You can be temporarily blinded by approaching headlamps. It can take a second or two, or even several seconds, foryour eyes toreadjust to the dark. When you are facedwith severe glare(as from a driver who doesn't lower the high beams, or a vehicle with misaimed headlamps), slow down a little. Avoid staring directly into theapproaching headlamps. Keep your windshield and all the glasson your vehicle clean -- inside and out. Glare at night is made much worse by dirt on the glass. Even the inside of the glass can build up a filmcaused by dust. Dirty glass makes lights dazzleand flash more than clean glasswould, making the pupils of your eyes contractrepeatedly. Remember that your headlamps light up far lessof a roadway when you are in aturn or curve.Keep your eyes moving; that way, it's easier topick out dimly lighted objects. Just as your headlamps should be checked regularly for proper aim, should your eyes so be examined regularly. Some drivers suffer from night blindness -- the inability to seein dim light -- and aren't even aware of it. Night Vision No one can see as well at night asin the daytime. But as we get older these differences increase. 50-year-old A driver may require at least twiceas much light to see the same thing at night as a 20-year-old. What you do in the daytime can alsoaffect your night vision. For example, if you spend the day in bright sunshine you are wise to wear sunglasses. Your eyes will have less trouble adjusting night. But if you're to driving, don't wear sunglasses at night. They may cut down on glare from headlamps, but they also make a lot of things invisible.