
NOTICE: 
Driving with the  parking  brake  on  can  cause  your  rear  brakes to 
overheat.  You may  have  to  replace  them,  and  you could  also 
damage  other  parts  of your  vehicle.  Always  check  to  be  sure 
your  parking  brake  is fully  released  before  you drive. 
If you  are towing  a  trailer  and  are  parking  on  any  hill:  See “Towing a 
Trailer” in the Index.  That section  shows what to do first  to keep the trailer 
from moving. 
Propshaft  Brake  Burnish  Procedure 
If you have  a 3500 HD model, it is  recommended  that  the  propshaft  mounted 
parking  brake  be  burnished 
as part  of  the  new  vehicle  break in. The  parking 
brake  will  work  best  after 
it has  been  burnished  following  these  instructions. 
Make 
10 (ten)  stops,  using the parking brake  foot pedal, from  20 mph (32 
km/h)  about 
2 1/2 miles (4 km) apart.  In between  stops, drive the vehicle  at 
20  mph  (32  km/h). 
Torque  Lock 
When parking,  the weight  of the vehicle  may  put  too  much force on the 
parking  pawl 
in the transmission.  It  may  be difficult to pull the selector 
lever out  of 
PARK (P). This is called ”torque  lock.” To find out how  to 
avoid torque  lock, see “Torque Lock” later  in this  section. 
Shifting  lnto PARK (P) (Automatic 
Transmission  Models  Only) 
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Leaving Your  Vehicle  With  the  Engine  Running 
(Automatic  Transmission  Models 
Only) 
A CAUTION: 
It  can  be dangerous to leave your  vehicle with the  engine 
running.  Your  vehicle  could  move  suddenly if the  shift  lever 
is 
not fully  in PARK (P) with the  parking  brake firmly set. If you 
have  four-wheel  drive with a manual  transfer case  shift  lever 
and  your  transfer  case  is in 
NEUTRAL  (N), your vehicle  will  be 
free to  roll,  even  if your shift lever  is  in PARK 
(P). So be sure  the 
transfer  case 
is in a drive gear - not  in NEUTRAL  (N). And, if 
you  leave  the vehicle  with  the engine running, it  could overheat 
and  even  catch  fire. 
You or others  could be injured.  Don’t leave 
your  vehicle  with  the engine  running  unless you have  to. 
If you  have to leave your vehicle with the engine  running,  be sure your 
vehicle  is  in  PARK  (P) and your parking brake  is firmly set before  you leave 
it. After  you’ve  moved the shift lever into the  PARK (P) position, hold the 
regular  brake pedal down. Then.  see 
if you can move the shift lever away 
from  PARK  (P) without first pulling 
it toward  you. 
If 
you can, it means that the shift lever wasn’t fully locked  into  PARK (P). 
Torque  Lock  (Automatic  Transmission) 
If you  are parking  on a hill and you don’t shift your transmission  into  PARK 
(P) properly, the weight of the vehicle  may put too much  force on the 
parking pawl  in the transmission. 
You may  find it difficult to pull the shift 
lever  out of  PARK  (P). This  is called  “torque lock.” To prevent torque  lock, 
set the parking brake and then shift  into PARK  (P) properly  before  you 
leave  the driver’s  seat. 
To find out  how, see “Shifting Into  PARK (P)” in the 
Index. 
When  you are ready to  drive, move the shift lever out 
of PARK  (P) before 
you release  the parking brake. 
If  “torque  lock” does occur, you  may need to have  another vehicle push 
yours 
a little uphill to take  some of the pressure from the transmission, so 
you  can pull the shift  lever out of  PARK (P). 
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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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According  to  the  American  Medical  Association, a 180-pound (82  kg) 
person  who drinks  three  12-ounce (355 ml) bottles  of beer  in an  hour will 
end  up  with  a  BAC  of about 
0.06 percent.  The person  would  reach  the same 
BAC,  by drinking  three  4-ounce (120 
ml) glasses of wine  or  three mixed 
drinks  if each  had 1-1/2  ounces  (45 ml) 
of a liquor  like  whiskey, gin  or 
vodka. 
It’s  the  amount 
of alcohol  that  counts.  For  example,  if the  same  person 
drank  three  double  martinis 
(3 ounces  or 90 ml of liquor  each)  within an 
hour,  the person’s  BAC would  be  close  to  0.12 percent.  A person  who 
consumes  food  just  before or  during  drinking  will have  a  somewhat  lower 
BAC  level. 
There  is  a  gender  difference,  too. Women  generally  have  a  lower  relative 
percentage  of body  water  than  men.  Since  alcohol  is carried  in  body  water, 
this  means  that  a  woman generally will  reach  a  higher  BAC  level  than  a 
man  of her  same  body  weight  when each  has  the  same  number 
of drinks. 
The  law in many 
U.S. states  sets  the legal  limit  at a  BAC  of 0.10  percent.  In 
a  growing  number 
of U.S. states,  and throughout  Canada,  the  limit  is 0.08 
percent.  In some  other  countries  it’s even  lower.  The BAC  limit  for  all 
commercial  drivers  in  the 
U.S. is  0.04  percent. 
The  BAC  will  be  over  0.10 percent  after  three  to  six drinks  (in one  hour).  Of 
course,  as we’ve  seen, it  depends  on  how much alcohol  is  in  the  drinks,  and 
how  quickly  the  person 
drinks them. 
But  the  ability  to  drive 
is affected well below a BAC of 0.10 percent. 
Research  shows  that the  driving  skills 
of many  people  are impaired  at  a 
BAC  approaching  0.05 percent,  and that  the  effects  are  worse  at  night. All 
drivers  are  impaired  at  BAC  levels  above  0.05  percent.  Statisti\
cs  show that 
the  chance  of being  in  a  collision  increases  sharply for  drivers  who have  a 
BAC  of 0.05  percent  or  above.  A driver  with  a  BAC  level 
of 0.06 percent 
has  doubled  his  or  her  chance  of having  a  collision.  At a  BAC  level  of 0.10 
percent,  the  chance 
of this  driver  having  a  collision  is  twelve  times greater; 
at  a  level 
of 0.15  percent,  the chance is twenty-five  times  greater! 
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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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Loading Your Vehicle 
- 
DSI/KPA (COL3) 
The Certification/Tire  label is found on the rear  edge of the  driver’s  door or 
in the Incomplete  Vehicle Document  in the cab. 
The  label  shows  the size  of your  original tires and the inflation pressures 
needed  to obtain 
the gross  weight  capacity of your vehicle.  This is called the 
GVWR  (Gross  Vehicle Weight Rating).  The 
GVWR includes  the  weight of 
the vehicle,  all  occupants,  fuel  and  cargo. 
The  CertificatiodTire  label also  tells  you the maximum  weights for  the 
front and  rear  axles,  called  Gross  Axle Weight Rating (GAWR). 
To find out 
the actual  loads 
on your front  and rear  axles,  you need  to go  to  a weigh 
station and weigh your vehicle.  Your dealer  can  help 
you with this. Be sure 
to spread  out your load  equally on both  sides  of the centerline. 
Never  exceed  the GVWR  for your  vehicle,  or the  GAWR  for either  the front 
or  rear  axle. 
And, 
if you  do have  a  heavy load, you should  spread it out. 
A CAUTION-: 
In  the  case of a sudden  stop or  collision,  things  carried  in the  bed 
of  your  truck  could  shift  forward  and  come  into  the  passenger \
 area,  injuring  you  and 
others. If you  put  things  in  the bed of 
your  truck,  you 
should make  sure  they  are  properly  secured. 
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A CAUTION: 
DO not load  your  vehicle  any heavier  than the GVWR, or either 
the  maximum  front or  rear 
GAWR. If  you  do, parts on your 
vehicle  can break,  or  it can change the  way your  vehicle  handles. 
These could  cause you to  lose  control.  Also,  overloading can 
shorten  the life 
of your  vehicle. 
Using heavier suspension  components to get added durability might  not 
change  your weight ratings. 
Ask your dealer to help  you  load your vehicle 
the right  way. 
If  your  vehicle  is equipped 
for front-end  equipment  (a snow  plow,  for 
example),  the front suspension  may  have  been adjusted (raised) to level the 
vehicle  when  the  equipment  was installed.  If the  front  suspension  was 
adjusted, 
you must  re-adjust  the front suspension  after the equipment is 
removed to avoid possible front suspension  damage. Adjust the front 
suspension to original design specifications  for your particular model. 
NOTICE: 
Your  warranty does not  cover  parts  or components  that fail 
because 
of overloading. 
There’s also important  loading information  for off-road  driving in this 
manual.  See “Loading 
Your Vehicle“  in  the  Index. 
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This label will tell  you  how  much of a load  your vehicle  can carry,  and  how 
to spread out your load the  right  way. Also, it will help you match the right 
slide-in  camper 
to your vehicle. 
When  you carry  a slide-in  camper, the  total cargo  load 
of your vehicle is the 
weight  of  the camper, 
PLUS 
everything  else added to the camper  after it left  the factory; 
everything  in  the camper;  and 
all the people inside. 
The  Cargo  Weight Rating (CWR)  is  the maximum weight  of 
the load your 
vehicle can carry. 
It doesn’t include the weight of the people  inside.  But, 
you can  figure about 150 pounds for each  seat. 
The  total  cargo  load must  not  be more than your  vehicle’s CWR. 
TRUCK  LOADING  INFORMATION 
1. Recommended 
location 
for cargo 
center 
of gravity 
for  cargo weight 
rating  (Pickup 
Truck) 
. 
Refer to the Truck  Camper Loading Information  label  in glove box  for 
“A”and 
“B” dimensions. Use the rear  edge of the  load  floor  for 
measurement  purposes. 
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