Pontiac 1993 Grand Am Owner's Manual page 143

Your Driving and the Road
Driving at Night
Night driving is more dangerous than
day driving. One reason is that some
drivers are likely to be impaired-by
alcohol or drugs, with night vision
problems, or by fatigue.
Here are some tips on night driving.
Drive defensively. Remember, this is
the most dangerous time.
Don't drink and drive. (See the Index
under Drunken Driving for more on
this problem.)
Adjust your inside rearview mirror to
reduce the glare from headlights
behind you.
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Since you can't see as well, you may
need to slow down and keep more
space between you and other vehicles.
It's hard to tell how fast the vehicle
ahead is going just by looking at its
taillights.
speed roads. Your headlights can light
up only so much road ahead.
Slow down, especially on higher
In remote areas, watch for animals.
If you're tired, pull off the road in a
safe place and rest.
Night Vision
No one can see as well at night as in the
daytime. But as we get older these
differences increase. A 50-year-old
driver may require at least twice as
much light to see the same thing at night
as a 20-year-old.
What you do in the daytime can also
affect 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 to night.
But if you're driving, don't wear
sunglasses at night. They may cut down
on glare from headlights, but they also
make a lot of things invisible that should
remain visible-such as parked cars,
obstacles, pedestrians, or even trains
blocking railway crossings. You may
want to put on your sunglasses after you
have pulled into a brightly-lighted
service or refreshment area. Eyes