OLDSMOBILE BRAVADA 1997 Owners Manual
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Driving  with a Trailer 
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If you  have  a  rear-most  window  open  and  you 
pull  a  trailer  with  your  vehicle, carbon  monoxide 
(CO) could  come  into  your  vehicle. You can’t  see 
or  smell 
CO. It  can  cause  unconsciousness  or 
death.  (See  “Engine  Exhaust”  in  the  Index.) 
To 
maximize  your  safety  when  towing  a  trailer: 
Have  your  exhaust  system  inspected  for 
leaks,  and  make  necessary  repairs  before 
starting  on  your  trip. 
Keep  the  rear-most  windows  closed. 
If exhaust  does  come  into  your vehicle 
through  a  window  in  the  rear  or  another 
opening,  drive  with your  front,  main 
heating  or  cooling  system 
on and  with  the 
fan  on  any  speed.  This  will bring  fresh, 
outside  air  into  your  vehicle. 
Do not use 
MAX A/C  because  it  only  recirculates  the 
air  inside  your  vehicle. (See 
“ Comfort 
Controls” 
in the  Index.)  Towing 
a trailer requires a certain  amount 
of experience. 
Before setting out  for the  open road,  you’ll want to get 
to  know your rig. Acquaint yourself  with the feel  of 
handling and braking  with  the added  weight  of the 
trailer.  And always keep 
in mind  that  the  vehicle you are 
driving 
is now a good deal longer  and  not nearly as 
responsive as your vehicle  is  by itself. 
Before  you start,  check  the trailer  hitch  and  platform 
(and  attachments),  safety chains,  electrical connector, 
lamps,  tires and mirror adjustment. 
If the trailer  has 
electric  brakes, start your vehicle  and trailer moving  and 
then apply the trailer brake  controller by hand  to be  sure 
the  brakes  are working.  This lets  you  check your 
electrical  connection  at the same  time. 
During your trip, check occasionally  to  be sure  that the 
load  is secure,  and that  the lamps and  any trailer brakes 
are still working. 
Following  Distance 
Stay  at  least  twice as  far behind  the vehicle ahead as  you 
would  when driving  your vehicle without  a trailer.  This 
can help  you avoid  situations  that require  heavy braking 
and sudden turns. 
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Passing 
You’ll  need more passing distance  up ahead  when 
you’re  towing  a trailer. And, because you’re  a good  deal 
longer,  you’ll  need  to 
go much farther  beyond  the 
passed vehicle before 
you can return  to your lane. 
Backing Up 
Hold the bottom  of  the steering wheel  with one hand. 
Then,  to  move the trailer to the  left,  just move that  hand 
to the left. 
To move  the trailer  to the right,  move  your 
hand  to the right. Always back 
up slowly and, if 
possible, have  someone  guide you. 
Making  Turns 
NOTICE: 
Making  very sharp turns  while  trailering could 
cause  the trailer to  come in contact  with the 
vehicle. 
Your vehicle  could be  damaged.  Avoid 
making  very sharp turns  while trailering. 
When  you’re  turning with a trailer, make wider turns 
than  normal. 
Do this so your trailer won’t strike soft 
shoulders, curbs, road signs, trees or other objects. 
Avoid  jerky or sudden maneuvers.  Signal 
well 
in advance. 
Turn Signals  When Towing a  Trailer 
When  you  tow  a trailer,  your vehicle  has to have  extra 
wiring and  a heavy-duty  turn signal flasher (included 
in 
the optional trailering package). 
The arrows  on  your instrument panel  will flash 
whenever  you signal  a turn  or lane  change.  Properly 
hooked  up,  the trailer lamps  will also  flash,  telling other 
drivers you’re about to 
turn, change  lanes or stop. 
When towing 
a trailer,  the arrows on  your instrument 
panel  will  flash for turns even 
if the bulbs on the trailer 
are  burned  out.  Thus, 
you may think drivers behind  you 
are seeing your signal  when  they are not.  It’s important 
to  check occasionally to be sure  the trailer bulbs are 
still working. 
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Driving  On  Grades 
Reduce  speed and shift to a lower  gear before you  start 
down a  long  or  steep  downgrade. 
If you don’t  shift 
down,  you might  have  to  use  your  brakes 
so much  that 
they  would  get hot  and  no  longer  work well. 
On  a long  uphill  grade,  shift  down and reduce  your 
speed  to around 
45 mph (70 km/h) to reduce  the 
possibility  of engine  and transmission  overheating. 
You  should  use  THIRD 
(3) when  towing  a trailer. 
Operating  your  vehicle  in THIRD 
(3) when towing a 
trailer  will minimize  heat buildup  and extend  the  life  of 
your transmission. 
Parking  on  Hills 
You  really should not  park your vehicle,  with a trailer 
attached,  on a hill. If something  goes wrong,  your  rig 
could  start to move.  People  can  be injured,  and both 
your  vehicle  and the trailer  can  be  damaged. 
But  if 
YOU ever  have to park your rig  on a hill, here’s 
how  to  do  it: 
1. Apply  your regular  brakes,  but don’t shift  into 
PARK 
(I?) yet.  Then  turn your wheels  into the curb  if 
facing  downhill  or into  traffic  if facing  uphill. 
2. Have  someone  place chocks  under  the trailer wheels. 
3. When the wheel  chocks  are  in  place, release the 
regular  brakes  until the chocks  absorb  the load. 
4. Reapply the  regular  brakes.  Then  apply your parking 
brake  and shift  into PARK 
(P). 
5. Release the regular  brakes. 
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When You Are  Ready to Leave  After 
Parking  on a  Hill 
1.  Apply  your regular brakes and hold the pedal down 
while you: 
0 Start  your engine; 
0 Shift  into a  gear;  and 
0 Release the parking brake. 
2. Let up on the brake pedal. 
3. Drive slowly  until the trailer  is clear of the  chocks. 
4. Stop  and have  someone pick  up and store the chocks. 
Maintenance  When  Trailer  Towing 
Your vehicle  will  need  service more often when  you’re 
pulling  a trailer.  See the Maintenance  Schedule for more 
on  this.  Things  that are especially important 
in trailer 
operation are automatic transmission fluid (don’t 
overfill),  engine 
oil, axle lubricant, belt, cooling system 
and  brake adjustment.  Each  of these 
is covered  in this 
manual,  and  the Index will help  you find them quickly. 
If you’re trailering,  it’s a good idea to review these 
sections before  you start  your  trip. 
Check periodically  to see  that  all  hitch  nuts  and  bolts 
are tight. 
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Trailer  Wiring  Harness 
The light  duty trailer  wiring  is a  six-wire  harness 
assembly.  The optional  heavy-duty  trailer wiring  is  an 
eight-wire  harness assembly.  The harnesses  are stored 
under  the vehicle, 
on the driver’s  side  corner  frame 
crossmember.  The heavy-duty  trailer wiring  has 
a 
30-amp  feed wire with an inline  fuse located  by the 
junction  block. See “Fuses  and Circuit  Breakers” 
in the 
Index.  Both harnesses have  no connector  and should  be 
wired  by 
ilt qualified  electrical  technician.  The technician 
can  use the following  color  code chart when connecting 
the wiring  harness  to your trailer. 
Dark Blue:  Use for electric  trailer brakes  or 
auxiliary wiring. 
Red:  Use for battery charging: it connects  to  the 
starter  solenoid  (eight-wire  harness only). 
Light Green:  Back-up  lamps  (eight-wire 
harness  only). 
Brown: Taillamps  and parking lamps. 
Yellow:  Left  stoplamp and turn signal. 
Dark Green:  Right stoplamp  and turn  signal. 
0 White  (Heavy  Gage):  Ground wire. 
White (Light  Gage):  Auxiliary  stoplamp. 
Securely attach the harness  to the  trailer, then tape  or 
strap 
it to your vehicle’s  frame rail. Be sure you leave it 
loose enough  so the wiring doesn’t  bend or break,  but 
not 
so loose  that it drags  on  the  ground.  Store  the 
harness 
in its original  place. Wrap the harness together 
and  tie 
it neatly so it won’t  be damaged. 
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fi NOTES 
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Section 5 Problems  on  the Road 
Here  you’ll  find what to  do about  some  problems that  can occur  on  the  road. 
5-2 
5-3 
5-3 
5-7 
5-  10 
5-11 
5-12 
5- 12 
5- 14  How 
to Use 
Warning Flashers 
Other  Types  of Warning  Devices 
Step-by-step  Procedure  for  Jump  Starting 
Information  You Should  Know Before  Towing 
Towing  Your  Vehicle  From the Front 
Towing  Your  Vehicle  From the Rear 
If  Your  Engine 
is Overheating 
If  Steam  is Coming  From  Your Engine 
Cooling  System  5-16 
5-21 
5-21 
5-29 
5-30 
5-3 1 
5-32 
5-32  How to Add 
Coolant 
What  to  do if a Tire  Goes  Flat 
How  to Change  a Flat Tire 
Where  to  Store  the  Flat Tire and Tools 
Information  on the  Compact  Spare  Tire 
If  You’re  Stuck in Sand,  Mud,  Snow  or  on  Ice 
How  to  Rock Your  Vehicle  to Get Unstuck 
Using  Recovery Hooks 
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Hazard Warning Flashers 
Your hazard warning  flashers  let you warn others. They 
also  let  police know you have 
a problem.  Your front  and 
rear turn  signal lamps will flash 
on and off.  Press the button 
on top 
of 
the steering column all the 
way  down  to make  your 
front  and rear turn signal 
lamps flash  on and off. 
Your  hazard warning flashers work  no matter what 
position your key  is in, and  even if the key isn’t in. 
To  turn  off the flashers, press the button until the  first 
click  and release. 
When  the hazard warning  flashers  are 
on, your turn 
signals won’t work.  The flashers will  stop if you  step 
on  the brake. 
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Other  Warning Devices 
If you  carry  reflective  triangles,  you can set one  up  at 
the  side  of the  road  about 
300 feet (100 m) behind your 
vehicle. 
Jump Starting 
If your  battery has run down,  you  may  want  to use 
another vehicle  and some  jumper  cables to start your 
vehicle. But please use the following steps 
to do  it safely. 
1 NOTICE: 
Ignoring  these steps  could result in  costly 
damage  to  your vehicle  that wouldn’t  be 
covered  by  your warranty. 
Do not try to start  your vehicle  by  pushing or 
pulling  it. This  could  damage  your vehicle  and 
it  won’t  start  that  way. 
~~ 
If the  other system  isn’t  a 12-volt  system  with a 
negative  ground, both vehicles  can be damaged. 
Batteries can 
hurt you.  They  can be dangerous 
because: 
They  contain acid  that  can  burn  you. 
They contain  gas that  can explode  or ignite. 
They  contain  enough electricity to  burn 
If you  don’t  follow  these  steps exactly,  some  or all 
of  these  things  can hurt  you. 
you. 
1.  Check the 
other vehicle. It must have a  12-volt 
battery  with a negative  ground system. 
I NOTICE: 
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2. Get the vehicles close  enough so the  jumper cables 
can  reach,  but  be  sure  the vehicles aren’t touching 
each  other.  If they are,  it could  cause  a ground 
connection  you don’t want.  You wouldn’t be  able 
to start your vehicle,  and  the bad grounding  could 
damage the electrical systems. 
You  could  be injured  if the vehicles roll.  Set  the 
parking brake firmly  on each vehicle. Put an 
automatic transmission  in 
PARK (P). Put a 
manual transmission  in NEUTRAL  (N). 
I unnecessary accessories plugged  into the cigarette 
lighter,  or accessory power outlets,  if you  have this 
option.  Turn 
off all lamps  that  aren’t needed  as well 
as  radios.  This will avoid sparks  and help  to save 
both batteries.  In addition,  it  could save your  radio! 
3. Turn  off the ignition  on both vehicles. Unplug 
NOTICE: 
If  you  leave  your  radio on, it could  be  badly 
damaged.  The  repair  wouldn’t  be  covered  by 
your  warranty. 
An  electric  fan can start  up  even when  the  engine 
is not running  and  can  injure  you.  Keep  hands, 
clothing  and tools  away  from  any  underhood 
electric fan. 
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