Saturn 2008 Astra Automobile User Manual


 
Medical research shows that alcohol
in a person’s system can make crash
injuries worse, especially injuries
to the brain, spinal cord, or heart.
This means that when anyone who
has been drinking — driver or
passenger — is in a crash, that
person’s chance of being killed or
permanently disabled is higher than
if the person had not been drinking.
Control of a Vehicle
The following three systems help
to control your vehicle while
driving brakes, steering, and
accelerator. At times, as when
driving on snow or ice, it is easy to
ask more of those control systems
than the tires and road can provide.
Meaning, you can lose control of
your vehicle.
Adding non-dealer/non-retailer
accessories can affect your vehicle’s
performance. See Accessories
and Modifications on page 9-3.
Braking
See Brake System Warning Light on
page 4-17.
Braking action involves perception
time and reaction time. First, you
have to decide to push on the brake
pedal. That is perception time. Then
you have to bring up your foot and
do it. That is reaction time.
Average reaction time is about
three-fourths of a second. But that
is only an average. It might be
less with one driver and as long
as two or three seconds or
more with another. Age, physical
condition, alertness, coordination,
and eyesight all play a part.
So do alcohol, drugs, and
frustration. But even in three-fourths
of a second, a vehicle moving at
60 mph (100 km/h) travels 66 feet
(20 m). That could be a lot of
distance in an emergency, so
keeping enough space between
your vehicle and others is important.
And, of course, actual stopping
distances vary greatly with the
surface of the road, whether it is
pavement or gravel; the condition of
the road, whether it is wet, dry, or icy;
tire tread; the condition of the brakes;
the weight of the vehicle; and the
amount of brake force applied.
Avoid needless heavy
braking. Some people drive in
spurts — heavy acceleration
followed by heavy braking — rather
than keeping pace with traffic. This
is a mistake. The brakes might not
have time to cool between hard
stops. The brakes will wear out much
faster if you do a lot of heavy braking.
If you keep pace with the traffic and
allow realistic following distances,
you will eliminate a lot of
unnecessary braking. That means
better braking and longer brake life.
Driving and Operating 8-17