Page 176 of 488

Rear-end collisions  are  about  the most preventable  of accidents.  Yet they 
are  common.  Allow enough following distance.  It’s 
the best defensive 
driving  maneuver,  in both city and rural  driving. You never know  when the 
vehicle  in front  of  you  is going to brake  or turn  suddenly. 
Drunken  Driving 
Death  and injury associated with drinking and  driving is a national tragedy. 
It’s the number one  contributor  to the highway death toll,  claiming 
thousands  of victims every  year. 
Alcohol  affects  four  things that anyone needs to drive 
a vehicle: 
Judgment 
Muscular  Coordination 
Vision 
Attentiveness 
Police  records  show that almost half 
of all motor vehicle-related  deaths 
involve  alcohol.  In most  cases,  these deaths  are the result 
of someone  who 
was  drinking  and driving.  In recent years,  some 
18,000 annual motor 
vehicle-related  deaths have been associated with the use  of alcohol, with 
more  than 
300,000 people  injured. 
Many  adults 
- by some  estimates,  nearly  half the adult  population - 
choose  never to drink alcohol, so they never  drive  after drinking. For 
persons  under 
2 I, it’s against  the law in every U.S. state to drink  alcohol. 
There  are good  medical, psychological  and  developmental reasons for  these 
laws. 
The  obvious  way to solve  this highway safety problem 
is for people  never to 
drink alcohol and then  drive. But what  if people do‘? How  much  is  “too 
much”  if the  driver plans  to  drive? It’s 
a lot less  than  many  might  think. 
Although 
it depends  on each person and situation, here is some general 
information  on the problem. 
The  Blood Alcohol Concentration  (BAC) 
of someone who is drinking 
depends  upon four things: 
How much alcohol  consumed 
The drinker’s  body  weight 
The amount  of food  that is consumed before and during drinking 
The length of time it  has taken the drinker  to consume  the alcohol 
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        Page 194 of 488

Driving Across an  Incline 
Sooner or later,  an  off-road  trail will probably go across the incline of a hill. 
If  this happens,  you have to  decide whether to 
try to drive across the incline. 
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Here are  some  things to consider: 
A hill  that  can  be  driven straight  up or down  may  be  too steep  to  drive 
across.  When you go straight  up or down 
a hill, the length of the wheel 
base  (the distance  from the front wheels to  the rear wheels) reduces the 
likelihood the vehicle 
will tumble end over  end. But when  you drive 
across an  incline, the much more narrow track width (the distance 
between 
the left and right wheels)  may  not prevent the vehicle  from 
tilting and rolling over.  Also, driving across  an incline puts more 
weight  on the downhill wheels.  This could  cause  a  downhill  slide  or 
a 
rollover. 
Surface  conditions can be 
a problem  when  you  drive across a hill. 
Loose gravel, muddy  spots, or even  wet grass can cause  your tires to 
slip sideways,  downhill. If the vehicle slips  sideways, it can hit 
something  that  will trip 
it (a rock, a rut, etc.) and roll  over. 
Hidden obstacles can make the steepness 
of the  incline even worse.  If 
you  drive  across 
a rock with the uphill  wheels,  or if the downhill 
wheels drop into  a 
rut or depression,  your vehicle can tilt even  more. 
For  reasons  like these, 
you need to decide  carefully  whether  to try  to drive 
across  an incline.  Just because  the trail goes across the incline  doesn’t mean 
you have to drive it.  The last vehicle to  try it might have rolled over. 
A CAUTION: 
Driving  across  an  incline  that’s  too  steep  will  make  your  v\
ehicle 
roll  over. 
You could  be  seriously  injured  or  killed. If you  have 
any  doubt  about  the  steepness  of  the  incline,  don’t  drive  a\
cross 
it.  Find  another  route  instead. 
0: What  if I’m driving  across  an  incline  that’s  not  too  steep,  but I hit 
some  loose  gravel  and  start  to  slide  downhill.  What  should 
I do? 
A: If  you  feel your vehicle starting to slide  sideways, turn downhill.  This 
should  help straighten 
out the vehicle  and prevent  the side  slipping. 
However,  a much better  way 
to prevent this is to  get  out and “walk  the 
course” 
so you  know what the  surface is like before you drive  it. 
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        Page 311 of 488

Brake  Adjustment 
Every time you make a brake  stop,  your  disc brakes  adjust for wear. 
If  your  brake  pedal  goes  down  farther  than normal, your rear drum brakes 
may need  adjustment.  Adjust them  by backing 
up and firmly  applying the 
brakes 
a few  times. 
Replacing Brake System  Parts 
The  braking  system  on a modeffl VEShicle is complex.  Its many parts have to 
be  of top quality  and work well  together if the  vehicle 
is to have really good 
braking.  Vehicles  we design  and test  have  top-quality 
GM brake parts in 
them, as your vehicle  does when it is new.  When  you replace  parts of your 
braking  system 
- for  example,  when your brake linings wear down and 
you  have  to have  new ones  put 
in - be sure  you get new  genuine GM 
replacement  parts. If you don't,  your brakes  may  no longer work properly. 
For example,  if someone  puts in brake  linings  that are wrong  for your 
vehicle, the  balance between  your  front and rear brakes can  change 
- for 
the worse.  The braking  performance  you've  come  to expect  can change 
in 
many  other ways  if someone  puts in the wrong  replacement  brake parts. 
Front Shock Absorbers 
The  front  shock  absorbers of your vehicle do many  things. They help the 
vehicle ride smoothly and 
also control the travel of the  suspension  system. 
When  the shock  absorbers  are  serviced,  any replacement  shock absorbers 
must  be the  same  as the  original  equipment shock absorbers 
in both 
extended  length and  strength. 
I NOTICE: 
If you  use  shock  absorbers  that  are  not  the  same  as the  original 
shock  absorbers,  the  shock  absorbers 
or suspension  system 
could  be  damaged. 
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