1993 Cadillac DeVille Owner's Manual - Page 208

- High Beams If the vehicle approaching you has its high beams on, signal by flicking yours to high and then back to low beam. This is the usual signal to lower the headlight beams. If the otherdriver still doesn't lower the beams, resist the temptation to put your high beams on. This only makes two half-blinded drivers. On a freeway, use your high beams only in remote areas where won't you impair approaching drivers. In someplaces, like cities, using highbeams is illegal. When you follow another vehicle on a freeway or highway, use low beams. True, most vehicles now have day-night mirrors that enable the driver to reduce glare. But outside mirrors are not of this type and high beams from behind can bother thedriver ahead. 7 A Few More NightDriving Suggestions Keep your windshield and all the glass on your vehicle clean -- inside and out. Glare at night is made much worse by dirt onthe glass. Even the inside of the glass can build up a film caused by dust. Tobacco smoke also makes inside glass surfaces very filmyand can be a vision hazard if it's left there. Dirty glass makes lights dazzle and flash more than clean glass would, making the pupils of your eyes contract repeatedly.You might even want to keep a cloth and some glass cleaner in your vehicle if you need to clean your glass frequently. Remember thatyour headlights light up farless of a roadway when you are in a turn or curve. Keep your eyes moving; that way, it's easier to pick out dimly lighted objects. Just asyour headlights should be checked regularly for properaim, so should your eyes be examined regularly. Some drivers suffer from night blindness -- the inability to seein dim light -- and aren'teven aware of it. -