1995 GMC Yukon Owner's Manual - Page 212

Night Vision No one can see well at night as in the daytime. Butwe get older these as as differences increase.A 50-year-old driver may require at least twice as much lightto see the same thing at night as a 20-year-old. What you do in the daytime also affectyour night vision. For example, can if you spend theday in bright sunshineyou are wise to wear sunglasses. Your eyes will have less trouble adjusting night. But if you're driving, to don't wear sunglasses at night. They cut down on glare from may headlamps, but they also make a lot things invisible. of You can be temporarily blinded approaching lights. It can takesecond by a or two, or even several seconds, for eyes to readjust the dark. When your to who doesn't lower the high you are faced with severe glare(as from a driver beams, or a vehicle with misaimed headlamps), slow down a little.Avoid staring directly into the approaching lights. Keep your windshield and all the glass on vehicle clean-inside and your out. Glare at night is mademuch worse by dirt on the glass. Even the inside of the glasscan build up a film caused dust. Dirtyglass makes lights by dazzle and flash more clean glasswould, making the pupils your than of eyes contractrepeatedly. Remember that your headlamps light up far less a roadway when you are of in a turn or curve.Keep your eyes moving;that way, it's easier to pick out dimly lighted objects. Just your headlamps should checked regularly as be for proper aim, should your eyes be examined so regularly. Some drivers suffer fromnight blindness -the inability to see in dim lightand aren't even awareof it. Driving inthe Rain Rain and wet roads canmean driving trouble.On a wet road you can't stop, accelerate orturn as well because your tire-to-road traction isn't as good as on dry roads. And, if your tires don't have much tread left,you'll get even 4-24