2003 OLDSMOBILE AURORA check oil

Notice: When adding coolant, it is important that
you use only DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL@ is added to
the system, premature engine, heater core or
radiator corrosion may result.
In addition, the engine
coolant will require change sooner
-- at 30,000 miles
(50,000 km) or 24 months, whichever occurs first.
Damage caused by the use of coolant other
than DEX-COOL@
is not covered by your new vehicle
warranty.
What to Use
Use a mixture of one-half clean, drinkable water and
one-half
DEX-COOL@ coolant which won’t damage
aluminum parts.
If you use this coolant mixture,
you don’t need
to add anything else. Adding
a plain water
to your cooling
system can be dangerous. Plain water, or
some other
liquid such as aicohol, can boil
before the proper coolant mixture will. Your
vehicle’s coolant warning system
is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you wouldn’t get the overheat warning.
Your engine could catch fire and you or others
could be burned. Use a
50/50 mixture of clean,
drinkable water and DEX-COOL@ coolant.
Notice: If you use an improper coolant mixture,
your engine could overheat and be badly damaged.
The repair cost wouldn’t be covered by your
warranty. Too much water
in the mixture can freeze
ana crack ihe engine, raiiiaiur, bakr
other parts.
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.
5-25
ProCarManuals.com

If the coolant inside the coolant recovery tank is boiling,
don’t do anything else until it cools down. The vehicle
should be parked on a level surface.
A low coolant level should be indicated by a LOW
ENGINE COOLANT message on the Driver Information
Center.
If it is, you may have a leak at the pressure
cap or
in the radiator hoses, heater hoses, radiator,
water pump or somewhere else in the cooling system. Heater
and radiator hoses, and other engine
parts, can be very hot. Don’t touch them.
If you
do, you can be burned.
Don’t run the engine if there is a leak. If you
run the engine,
it could lose all coolant. That
could cause an engine fire, and you could be
burned. Get any leak fixed before you drive the
vehicle.
If there seems to be no leak, with the engine on, check
to see
if the electric engine cooling fans are running.
If the engine is overheating, both fans should be
running.
If they aren’t, your vehicle needs service.
Notice: Engine damage from running your engine
without coolant isn’t covered by your warranty.
See “Overheated Engine Protection Operating
Mode’’ in the Index for information on driving to a
safe place
in an emergency.
5-32
ProCarManuals.com

Maintenance Schedule
Introduction
IMPORTANT:
KEEP ENGINE OIL
AT THE PROPER
LEVEL AND CHANGE AS'.
RECOMMENDED
.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment.
All recommended maintenance procedures
are important. Improper vehicle maintenance can
even affect the quality of the air we breathe. Improper
fluid levels or the wrong tire inflation can increase
the level of emissions from your vehicle.
To help protect
our environment, and to keep your vehicle in good
condition, please maintain your vehicle properly.
Maintenance Requirements
Maintenance intervals, checks, inspections and
recommended fluids and lubricants as prescribed in this
manual are necessary to keep your vehicle in good
working condition. Any damage caused
by failure
to follow recommended maintenance may not be
covered by warranty.
6-2
ProCarManuals.com

Part A: Scheduled Maintenance
Services
This part contains engine oil scheduled maintenance
which explains the engine oil life system and how
it indicates when to change the engine oil and filter.
Also, listed are scheduled maintenance services which
are to be performed at the mileage intervals specified.
Using Your Maintenance Schedule
We at General Motors want to keep your vehicle in good
working condition. But we don’t know exactly how
you’ll drive it. You may drive short distances only a few
times a week. Or you may drive long distances all
the time in very hot, dusty weather. You may use your
vehicle in making deliveries. Or you may drive it to
work, to do errands or in many other ways.
Because of the different ways people use their vehicles,
maintenance needs may vary. You may need more
frequent checks and replacements.
So please read the
following and note how you drive. If you have
questions on how to keep your vehicle in good condition,
see your dealer. This part tells
you the maintenance services you should
have done and when you should schedule them.
When you go to your dealer for your service needs,
you’ll know that GM-trained and supported service
people will perform the work using genuine GM parts.
The proper fluids and lubricants to use are listed in
Part
D. Make sure whoever services your vehicle uses
these.
All parts should be replaced and all necessary
repairs done before you or anyone else drives the
vehicle.
This schedule is for vehicles that:
carry passengers and cargo within recommended
limits. You will find these on your vehicle’s
Tire-Loading Information label. See
Loading Your
Vehicle on page 4-34.
are driven on reasonable road surfaces within legal
driving limits.
use the recommended fuel. See Gasoline Octane
on page
5-5.
6-4
ProCarManuals.com

Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after
100,000 miles
(166
000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles
(240 000 km) for the life of this
vehicle.
See
Part 5: Owner Checks and Services on page 6-9
and Part C: Periodic Maintenance Inspections on
page
6- 13.
Footnotes
t The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle
's useful life. We, however,
urge that all recommended maintenance services be
periormea at tne inuicateti intervais anti tne
maintenance be recorded.
@ Whenever the tires are rotated, the Check Tire
Pressure System must be reset.
+A good ti.me to check your brakes is duri.ng tire
rotation. See Brake System Inspection on page 6-14.
Engine Oil Scheduled Maintenance
Change engine oil and filter as indicated by the GM
Oil Life SystemTM (or every 12 months, whichever
occurs first). Reset the system.
Your vehicle has a computer system that lets you know
when to change the engine oil and filter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE
OIL SOON light will come on.
Change your oil as
soon as possible within the next two
times you stop for fuel.
It is possible that, if you are
driving under the best conditions, the oil life system may
not indicate that an oil change is necessary for over a
year. However, your engine oil and filter must be
must be reset. It is
also important to check your oil
regularly and keep it at the proper level.
If the system is ever reset accidentally, you must
change your oil at
3,000 miles (5 000 km) since your
last oil change. Remember to reset the
oil life system
whenever the oil is changed. See
Engine Oil on
page
5-15 for information on resetting the system.
nh-nnnr-4 qt Inrrrt nnnn q
nqv Qnrl rrt thio t;-m th- rrnrrrtmm WI IUI uyuu UL IUUUL VI lWcI u yuul UI IU UL LI Ilr) tIIIIc, LI Ic, G)yr)LOIl1
6-5
ProCarManuals.com

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals specified to
help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part
D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See Engine Oil on page 5-15 for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL@
coolant mixture if necessary. See Engine Coolant
on page
5-24 for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the windshield
washer tank and add the proper fluid
if necessary.
See
Windshield Washer Fluid on page 5-38 for further
details.
At Least Once a Month
Tire Inflation Check
Make sure tries are inflated to the correct pressures.
Don't forget to check your spare tire. See
Tires on
page
5-60 for further details.
Cassette Tape Player Service
c;eai-l c-&sei;e idPt: Ciearri1-,y S;-,"&j st: du,
every 50 hours of tape play. See Audio Systern(s)
on page
3-59 for further details.
6-9
ProCarManuals.com

Care of
Care of Your
Safety
Belts
........... ... 5-84
Cassette Tape Player
................................... 3-74
CD Player
.................................................. 3-76
Cassette Tape Messages
................................. 3-66
Cassette Tape Player Service
............................. 6-9
CD Changer, Trunk-Mounted
............................ 3-70
Chains, Tires
.................................................. 5-70
Check Engine Light
............................................... 3-39
Tire Pressure System
................................... 5-62
Check Engine Light
......................................... 3-39
Checking Coolant
............................................ 5-26
Checking Engine Oil
........................................ 5-16
Checking Things Under the Hood
...................... 5-12
Checking Your Restraint Systems
...................... 1-55
Chemical Paint Spotting
................................... 5-87
Child Restraints
Child Restraint Systems
............................... 1-34
Infants and Young Children
........................... 1-30
Lower Andlorayes arid Tup Teiilers ior
Children (LATCH System) .......................... 1-40
Older Children
............................................. 1-28
Securing a Child Restraint Designed for the
LATCH System
........................................ 1-42
Securing a Child Restraint
in a Rear Seat
Position
.............................................. 1-42
CDS
.......................................................... 3-75
Child Restraints
(cont.)
Securing a Child Restraint in the Right Front
Seat Position
........................................... 1-44
Top Strap
................................................... 1-38
Top Strap Anchor Location
............................ 1-39
Where to Put the Restraint
........................... 1-37
Cigarette Lighter
............................................. 3-22
Cleaning Inside of Your Vehicle
.................................. 5-82
Outside of Your Vehicle
................................ 5-85
Underbody Maintenance
............................... 5-87
Weatherstrips
.............................................. 5-84
Cleaning Exterior LampdLenses
....................... 5-85
Climate Control System
Automatic
................................................... 3-23
Climate Controls Personalization
.................... 3-29
Outlet Adjustment
........................................ 3-27
Chime
Level Adjustment
.................................. 3-76
Steering Wheel Controls
............................... 3-28
Compact Disc Errors
....................................... 3-72
Compact Disc Messages
.................................. 3-68
Compact Spare Tire
........................................ 5-81
Compass Calibration
....................................... 2-35
Compass Operation
......................................... 2-35
Compass Variance
.......................................... 2-36
Control of a Vehicle
.......................................... 4-5
Convenience Net ............................................ 2-46
3
ProCarManuals.com

Driver Information Center (DIC) ___ ....... 3-45
DIC Vehicle Personalization .......................... 3-52
DIC Warnings and Messages .......... ....... 3-50
At Night ..................................................... 4-16
City ........................................................... 4-21
Defensive ..................................................... 4-2
Drunken ....................................................... 4-2
Freeway ..................................................... 4-22
Hill and Mountain Roads .............................. 4-24
In Rain and on Wet Roads ........................... 4-18
Winter ........................................................ 4-26
Driving On Grades .......................................... 4-42
Driving Through Deep Standing Water ............... 4-20
Driving Through Flowing Water ...................... 4-20
Driving with a Trailer .................................... 4-40
Driving
Driving on Snow or Ice
.................................... 4-28
E
Electrical System
Add-on Equipment
............................... 5-91
Fuses and Circuit Breakers ........................... 5-92
Headlamp Wiring ......................................... 5-91
Power Windows and Other Power Options ...... 5-91
Removing the Rear Seat Cushion .................. 5-95
Windshield Wiper Fuses ............................... 5-91
Emergency Trunk Release Handle ..................... 2-1 6
Emissions Inspection and Maintenance
Programs
................................................... 3-42
Engine
Air Cleaner/Filter
......................................... 5-21
Battery ....................................................... 5-42
Check and Service Engine Soon Light ............ 3-39
Coolant ...................................................... 5-24
Coolant Heater ............................................ 2-25
Coolant Temperature Gage ........................... 3-38
Cooling System Inspection ............................ 6-14
Engine Compartment Overview ...................... 5-14
Exhaust ..................................................... 2-33
Oil ............................................................. 5-15
Overheating ................................................ 5-28
Starting ...................................................... 2-24
Engine Compartment Fuse Block ...................... 5-92
Engine Coolant Level Check .............................. 6-9
Engine Cooling When Trailer Towing .................. 4-43
Engine Oil Additives ........................................ 5-19
Engine Oil Level Check ..................................... 6-9
Engine Oil Scheduled Maintenance ..................... 6-5
Engine Specifications ..................................... 5-1 00
Engiishiivietric ................................................. 3-45
Entry Lighting ................................................. 3-18
Erasing HomeLink@ Buttons .............................. 2-44
Express-Down Window .................................... 2-18
Extender, Safety Belt ....................................... 1-27
Exterior Lamps ............................................... 3-14
Exterior Lighting Battery Saver .......................... 3-17
5
ProCarManuals.com