OLDSMOBILE BRAVADA 1994 Owners Manual
Page 181 of 248
Let the warning lights  and gages  work 
What to Use 
Use a mixture  of  one-half clean  water 
(preferably  distilled) and one-half 
antifreeze  that meets 
“GM Specification 
6038-M,” which won’t damage 
aluminum  parts. If you  use this  mixture, 
you  don’t  need 
to add anything  else. 
as 
they should. 
NOTICE: 
If you  use an improper coolant  mix, 
your  engine  could  overheat and be 
badly  damaged.  The repair cost 
wouldn’t  be  covered  by your 
warranty.  Too much  water  in  the 
mix  can freeze  and crack  the 
engine,  radiator,  heater  core and 
other  parts. 
Some  conditions,  such  as  air  trapped  in 
the  cooling  system,  can affect  the 
coolant  level in  the  radiator.  Check the 
coolant  level when  the  engine  is  cold 
and  follow  the  steps  under 
Adding 
Coolant for the  proper  way to  add 
coolant. 
If  you  have  to add coolant more  than 
four  times  a year,  have your  dealer 
check  your  cooling  system. 
NOTICE: 
If you  use the proper coolant,  you 
don’t  have to add  extra  inhibitors 
or additives which  claim to improve 
the  system.  These can  be harmful. 
~~ 
Adding Coolant 
To Check  Coolant 
When  your  engine  is  cold,  the coolant 
level  should  be at 
ADD, or a  little 
higher. When  your  engine  is  warm, the 
level  should be up  to 
FULL HOT, or a 
little  higher. 
L 
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Service & Appearance  Care 
1 76 
To Add Coolant 
If you need  more  coolant,  add the proper 
mix 
at the coolant recovery tank. 
Add  coolant  mix at the  recovery  tank, 
but  be  careful  not 
to spill it. 
I Radiator  Pressure Cap 
NOTICE: 
Your  radiator  cap  is a 15 psi 
(105 1tPa)  pressure-type  cap  and 
must  be  tightly  installed 
to prevent 
coolant 
loss and  possible  engine 
damage  from  overheating.  Be sure 
the  arrows  on  the cap line  up with 
the  overflow  tube 
on the radiator 
filler  neck. 
When  you  replace  your  radiator 
pressure  cap, an AC@  cap 
is 
recommended. 
Thermostat 
Engine  coolant temperature is 
controlled  by a thermostat  in the  engine 
coolant  system. The thermostat  stops 
the  flow 
of coolant  through  the radiator 
until  the coolant  reaches  a preset 
temperature. 
When  you  replace  your  thermostat, an 
AC@  thermostat  is  recommended. 
I Power Steering Fluid 
How To Check Power Steering 
Fluid 
Unscrew  the cap  and  wipe  the dipstick 
with a  clean  rag.  Replace  the cap  and 
completely  tighten it. Then  remove  the 
cap  again  and look  at  the  fluid  level  on 
the  dipstick. 
. When  the engine  compartment  is hot, 
the  level  should  be 
at the HOT mark. 
When the engine  compartment  is 
cool,  the level  should  be  at  the 
FULL 
COLD mark. 
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What to Add 
Refer to  the  Maintenance  Schedule to 
determine  what kind of fluid  to use. See 
Recommended  Fluids G Lubricants in 
the 
Index. 
NOTICE: 
When adding  power steering  fluid 
or  malting  a complete  fluid  change, 
always  use  the proper  fluid.  Failure 
to  use  the proper  fluid can cause 
leaks  and damage  hoses and seals. 
Windshield Washer Fluid 
To Add 
Open  the  cap  labeled WASHER FLUID 
ONLY. Add washer  fluid  until  the bottle 
is  full. 
NOTICE: 
When  using  concentrated washer 
fluid,  follow  the manufacturer’s 
instructions  for  adding water. 
Don’t mix water with  ready-to- 
use  washer  fluid.  Water  can cause 
the  solution  to freeze  and damage 
your  washer  fluid tank  and other 
parts  of the  washer  system.  Also, 
water doesn’t  clean as well  as 
washer  fluid. 
Fill  your  washer fluid tank only % 
full when  it’s  very  cold.  This 
allows  for  expansion, which  could 
damage  the  tank  if it  is 
completely  full. 
Don’t use radiator  antifreeze  in 
your  windshield  washer. It can 
damage  your  washer system and 
paint. 
n 
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Service & Appearance  Care 
1 78 
~- 
Brakes 
Brake  Master  Cylinder 
Your brake  master  cylinder  is  here. It is 
filled  with DOT-3 brake  fluid. 
There are  only two reasons  why the 
brake  fluid  level  in  your  master  cylinder 
might  go  down. The  first  is  that  the 
brake  fluid  goes  down to an  acceptable 
level  during  normal  brake lining wear. 
When  new linings  are put  in,  the fluid 
level  goes  back 
up. The other reason  is 
that  fluid  is  leaking 
out of the  brake 
system. 
If it  is,  you  should  have  your 
brake  system  fixed,  since  a leak  means 
that  sooner or later  your brakes  won’t 
work  well,  or  won’t  work at all. 
So, it 
isn’t a  good  idea  to  “top 
off’ your brake 
fluid.  Adding  brake fluid won’t correct a  leak. 
If you  add fluid  when  your  linings 
are worn, then  you’ll  have too much 
fluid  when  you  get  new  brake linings. 
You  should add  (or  remove) brake 
fluid,  as necessary,  only  when work is 
done on  the brake  hydraulic  system. 
Refer  to the  Maintenance  Schedule to 
determine when  to check  your  brake 
fluid.  See 
Periodic  Maintenance 
Inspections 
in  the Index. 
To Check Brake Fluid 
You can  check  the brake  fluid without 
taking 
off the  cap.  Just  look  at  the 
windows on  the brake  fluid  reservoir. 
The  fluid  levels  should  be  above 
MIN. If 
they  aren’t,  have  your  brake system 
checked  to see 
if there is a  leak. 
After  work  is done on  the brake 
hydraulic  system,  make  sure the levels 
are  above 
MIN and  below  the  top of 
each window. 
What to Add 
When  you  do need  brake  fluid,  use  only 
DOT-3  brake fluid 
- such as Delco 
Supreme 
11s (GM Part  No.1052535). 
Use  new  brake  fluid  from a sealed 
container  only, and always  clean  the 
brake  fluid  reservoir  cap before 
removing  it. 
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NOTICE: 
DOT-5 silicone brake fluid can 
Don’t  let someone  put  in  the 
damage 
your  vehicle.  Don’t use it. 
wrong kind  of fluid.  For  example, 
just  a few  drops  of mineral-based 
oil,  such  as  engine oil, in your 
brake  system  can damage brake 
system  parts 
so badly that they’ll 
have  to be  replaced. 
Brake  fluid  can damage  paint, so 
be  careful  not  to spill brake  fluid 
on  your  vehicle.  If  you  do, wash  it 
off immediately.  See Appearance 
Care 
in  the Index. 
Brake  Wear 
Your  Oldsmobile  has front  disc brakes 
and  rear 
drum brakes. 
Disc  brake pads  have built-in wear 
indicators  that make a  high-pitched 
warning  sound  when  the brake pads  are 
worn  and  new  pads are needed.  The 
sound  may come  and go or be heard  all 
the  time  your  vehicle  is  moving  (except 
when  you are pushing 
on the  brake 
pedal  firmly). 
I NOTICE: 
I 
Continuing  to drive  with  worn-out 
brake pads  could result  in costly 
brake repair. 
Some  driving  conditions or climates 
may  cause a brake squeal  when  the 
brakes  are first  applied  or  lightly 
applied. This does  not  mean something 
is  wrong with  your brakes. 
Your  rear 
drum brakes  don’t have wear 
indicators,  but  if you  ever  hear a rear 
brake rubbing  noise, have the rear  brake 
linings  inspected. 
Also, the rear brake 
drums  should  be  removed  and 
inspected  each time the tires  are 
removed  for rotation  or  changing.  When  you 
have  the front  brakes replaced, 
have  the rear  brakes  inspected,  too. 
Brake  linings  should always be replaced 
as complete  axle sets. 
Brake  Pedal  Travel 
See your dealer  if the  brake  pedal  does 
not  return 
to normal height, or if there 
is  a rapid increase  in  pedal  travel. 
This 
could  be a sign  of brake trouble. 
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 modern  vehicle 
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 
Oldsmobile  does  when it is  new.  When 
you  replace  parts 
of your  braking  system 
- for  example,  when your brake  linings 179 
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Sewice & Appearance  Care 
180 
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. Battery 
Every  new  Oldsmobile  has a Delco 
Freedom@ battery. 
You never  have  to 
add water  to one 
of these.  When  it’s 
time  for  a new battery,  we  recommend  a 
Delco  Freedom@ battery. Get one  that 
has  the catalog  number shown  on  the 
original  battery’s  label. 
Vehicle Storage 
If you’re  not going  to drive  your  vehicle 
for 
25 days  or  more,  take off the  black, 
negative 
(-) cable from the  battery.  This 
will  help  keep  your  battery from 
running down.  Contact 
your  dealer  to learn how  to 
prepare  your  vehicle  for  longer  storage 
periods. 
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Page 187 of 248
Halogen Bulbs 
Headliuht Bulb Rerolacement 
For the type of bulb,  see the Index 
under Replacement Bulbs. 
1. Remove  the  four Phillips-head  screws 
from the headlight  retainer.  retainer. 
3. Unplug 
the headlight. 
4. Plug  in  the  new bulb  and  put  it  in 
5. Install  the  retainer  to  the headlight. 
6. Install  the screws. 
place. 
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182 
Service & Appearance  Care 
Taillight  Bulb Replacement 
For the type  of bulb, see  the Index 
under Replacement Bulbs. 
1. Open the tailgate. 
2. Remove  the T15  Torxs-head  screws 
3. Pull the assembly  away  from the 
from 
the light  assembly. 
fender. 
4. Turn  the  socket countercloclwise  to 
remove  it. If the  socket has  a  tab, 
push  the  tab  in  while  you turn  the 
socket. 
5. Turn  the  bulb countercloclwise  to 
remove  it. 
6. Put  the new bulb  into  the  socket and 
turn  the  bulb cloclwise. 
7. Put  the  socket into  the  light  assembly 
and  turn  the  socket cloclwise  until it 
loclts  in place. 
8. Install  the light  assembly  and screws. 
9. Close  the tailgate. 
Fog  Light  Bulb  Replacement 
Don’t change  your  fog  light  bulbs unless 
you  have  the proper  aiming  equipment. 
See your  Oldsmobile  dealer if you  have 
any  further  questions. 
Windshield  Wiper  Blade 
Replacement 
Replacement  blades come in different 
types  and  are  removed  in different 
ways.  Here’s  how to remove  the type 
without  a  release clip: 
1. Pull the windshield  wiper arm away 
2. With  a screwdriver,  pry the blade 
3. Push  the new  wiper blade  securely on 
from the windshield. 
assembly  off the  wiper  arm. 
the  wiper  arm. 
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SEE 
OWNER’S MANUAL POR ADDITIONAL  INPORMATlON 
Loading Your Vehicle 
The  Certificatioflire  label is found  on 
the  rear  edge  of  the driver’s  door. 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  Certificationnire  label also tells 
you  the maximum weights  for the  front 
md  rear axles,  called Gross Axle 
Weight  Rating (GAWR).  To find  out  the 
3ctual  loads on your  front  and  rear 
des,  you  need  to go  to a weigh  station 
md  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  Gross  Axle  Weight 
Rating  (GAWR)  for  either  the  front or 
rear  axle. 
And, 
if you  do have a  heavy load, you 
should spread  it  out.  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. NOTICE: 
Your  warranty  does not cover  parts 
or components  that fail because  of 
overloading. 
If you  put things inside  your  vehicle - 
like suitcases,  tools, packages,  or 
anything  else 
- they will  go  as fast  as 
the  vehicle  goes.  If you  have  to stop  or 
turn  quickly,  or 
if there is a crash, 
they’ll  keep  going. 
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Page 190 of 248
Sewice & Appearance  Care 
Payload 
The Payload  Capacity  is  shown on  the 
Certificationflire  label. This is the 
maximum  load  capacity  that your 
vehicle  can carry.  Be sure  to include  the 
weight  of the  people  inside  as part  of 
your  load.  If you  added any  accessories 
or equipment  after  your  vehicle  left  the 
factory,  remember  to subtract  the  weight 
of these things from  the payload. 
Your  dealer  can help  you with this. 
Trailering Package 
If your  vehicle  comes  with the trailering 
package,  there is  also  a load  rating 
which  includes  the weight  of the  vehicle 
and the  trailer  it tows.  This  rating is 
called  the Gross  Combination  Weight 
Rating  (GCWR) 
. 
When  you  weigh  your  trailer,  be  sure  to 
include  the weight  of everything  you put 
in it. And,  remember  to figure  the weight 
of  the  people  inside  as  part 
of your  load. 
Your  dealer  can help  you  determine 
your  GCWR. 
Add-on Equipment 
When  you  carry  removable  items, you 
may  need  to put  a limit  on how  many 
people  you  carry  inside  your  vehicle.  Be 
sure  to weigh  your  vehicle  before  you 
buy  and  install  the new equipment. 
NOTICE: 
Your  warranty doesn’t  cover parts 
or components  that fail  because  of 
overloading. 
I Single Belt Accessory  Drive 
Your  new vehicle  uses  a serpentine  belt 
that  is lighter,  more  durable  and fuel 
efficient  than systems  with several  belts. 
The  belt runs  over  or  around  the pulleys 
on  the  engine. 
A tensioner  is  used to 
keep  the belt  tight  at all  times.  The 
tensioner also makes  replacing the belt 
easier. 
If you  need  to replace  the belt,  be 
sure  to get  the  correct  replacement  belt. 
Your  dealership  or  parts supplier  can 
help  you  with this. The  Accessory  Drive 
Belt  Routing  label  on your  vehicle  will 
show  you how  to route  the belt  your 
vehicle  uses. 
I Air Conditioning 
Every  now and  then have  your 
dealership  check  your  air conditioning 
system  to be  sure  it has not  lost  any 
cooling  ability.  If you  think  the system 
is  not  working  properly,  have  your 
dealership  check  it  out  as soon as 
possible. 
The air  conditioning  will not work when 
the  temperature  is  below 
40°F (4°C). 
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