change time Oldsmobile Aurora 1998 s Owner's Guide

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.
Your vehicle was designed and tested with top-quality
GM brake parts. When you replace parts of your bralung
system
-- for example, when your brake linings wear
down and you have
to have new ones put in -- be sure
you get new approved
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 Aurora has an ACDelco Freedom@ battery.
You never have to add water to one of these. When it’s
time for a new battery, we recommend an ACDelco
Freedom battery. Get one that has the replacement
number shown on the original battery’s label. The
battery is located under the rear seat cushion.
To access
the battery, see “Removing the Rear Seat
Cushion” in the Index.
You don’t need to access the
battery to jump start your vehicle. See “Jump Starting”
in the Index.
A CAUTION:
A battery that isn’t properly vented can let
sulfuric acid fumes into the area under the rear
seat cushion. These fumes can damage your rear
seat safety belt systems. You may not be able to
see this damage, and the safety belts might not
provide the protection needed in a crash.
If a
replacement battery is ever needed, it must
be vented in the same manner as the original
battery.
Always make sure that the vent hose is
properly reattached before reinstalling the
seat cushion.

When It’s Time for New Tires
-
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make wheel nuts become loose
after
a time. The wheel could come off and cause
an accident. When you change a wheel, remove
any rust or
dirt from places where the wheel
attaches to the vehicle. In an emergency, you can
use a cloth or a paper towel to
do this; but be
sure to use a scraper or wire brush later,
if you
need to, to get all the rust or dirt
off. (See
“Changing a
Flat Tire” in the Index.)
One way to tell when it’s
time for new tires is to
check the treadwear
indicators, which will
appear when your tires have
only
1/16 inch (1.6 mm) or
less of tread remaining.
You need a new tire if any of the following statements
are true:
You can see the indicators at three or more places
You can see cord or fabric showing through the
around
the tire.
tire’s rubber.
e The tread or sidewall is cracked, cut or snagged deep
enough to show cord or fabric.
e The tire has a bump, bulge or split.
e The tire has a puncture, cut or other damage that
can’t be repaired well because of the size or location
of the damage.
6-46

Maintenance Schedule
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166
000 km) at the same intervals. The services shown
at 150,000 miles (240
000 km) should be performed at
the same interval after 150,000
miles (240 000 km).
See “Owner Checks and Services’’ and “Periodic
Maintenance Inspections” following.
Footnotes
f‘ 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
performed at
the indicated intervals and the maintenance
be recorded.
+ A good time to check your brakes is during tire
rotation.
See “Brake System Inspection” under “Periodic
Maintenance Inspections” in Part
C of this schedule.
# Lubricate the suspension and steering linkage,
transaxle shift linkage, parking brake cable guides
and underbody contact points and linkage.
* Your vehicle has an Engine Oil Life Monitor. This
monitor will show you when to change the engine oil
and filter
-- usually between 3,000 miles (5 000 km)
and 7,500 miles (12 500 km) since your last oil change.
Under severe conditions, the indicator may come on
before
3,000 miles (5 000 km). Never drive your vehicle
more than 7,500 miles (12 500 km) or 12 months
without an oil and filter change.
The system won’t detect dust in the oil.
So if you drive
in
a dusty area, be sure to change your oil and filter
every
3,000 miles (5 000 km) or sooner if the CHANGE
OIL SOON message appears. Remember to reset the
Oil Life Monitor when the oil has been changed. For
more information, see “Engine Oil Life Monitor” in
the Index.
7-5

ORDER TOLL FREE
information within 30 days of delivery. On returns, a re-stocking fee may be applied (Monday-Friday 8:OO AM - 6:OO PM EST)
service. If further information is needed, write to the address s s, own below or call (NOTE: For Credit Card Holders Only)
Orders will be mailed within 10 days of receipt. Please allow ade uate time for postal
1-800-782-4356 1-800-782-4356. Material cannot be returned for credit without packing slip with return
FAX Orders Onlv 1-31 3-865-5927 aaainst the oriainal order. " Y
PUBLICATION FORM
ITEM DESCRIPTION VEHICLE MODEL ~'
PRICE
NAME I YEAR
NUMBER TOTAL PRICE
EACH*
QTYs
11 I I
9
9,
Service Manual
Car
& Light Truck $90.00
1998
Transmission Unit Repair 1998 $40.00
Owner's Manual In Portfolio
$1 0.00 1998
Owner's Manual Without Portfolio
$1 5.00 1998
a
iG
NOTE: Dealers and Companies please provide dealer or company name, and also the
name of the person to whose attention the shipment should be sent.
Mail completed order form to:
For purchases outside U.S.A. please write to the above address for quotation.
HELM, INCORPORATED
P.O. Box 07130 Detroit, MI 48207
(CUSTOMER'S NAME)
(ATTENTION)
(STREET ADDRESS-NO P.O.
BOX NUMBERS)
(CITY) (STATE) (ZIP CODE)
DAYTIME TELEPHONE NO.
AREA CODE
3M-OLD-ORD98 *(P,rices
are subject to change without notice and without incurring
obhgation. Allow ample time for delivery.)
Check or Money
Order payable to Helm, Inc. (USA funds
only - do not send cash.)
0 Mastercard
0 VISA
n
TOTAL MATERIAL
Michigan Purchasers 1 add 6% sales tax
US. Order Processing ; $5.00-
Canadian Postage (See Note Below)
I GRANDTOTAL 1
1
J
liscover I I
Account
Number: [
Expiration
Date mo/yr: ma
Check here if your billing address is different from your shipping
address shown.
CUSTOMER SIGNATURE ~
Note to Canadian Customers: All listed prices are quoted in U.S. funds. Canadian residents
are to make checks payable in U.S. funds. To cover Canadian postage, add $11.50 plus the US. order processing.

Outside of Your Vehicle ........................ 6-55
Special Problems
............................. 6-52
Stains
...................................... 6-52
Tires
....................................... 6-56
Vinyl
....................................... 6-52
Wheels
..................................... 6-56
Windshield and Wiper Blades
................... 6-54
Climate Controls
................................ 3-2
Automatic Electronic
........................... 3-2
Right Front Passenger
......................... 3- 10
SteeringWheel
............................... 3-10
Clock. Setting the
............................... 3- 11
Comfort Controls ................................ 3-2
Compact Disc Care
............................. 3-26
Compact Disc Changer. Trunk Mounted
............. 3- 18
Compact Disc Changer Errors
................... 3- 19
Loading the Magazine
......................... 3- 18
Playing a Compact Disc
........................ 3-20
Compact Disc Player
............................ 3-16
Care
....................................... 3-26
Errors
...................................... 3-1 6
Compact Spare Tire
............................. 5-33
Control of
a Vehicle .............................. 4-5
ConvenienceNet
............................... 2-53
Convex Outside Mirror
.......................... 2-52
Coolant
....................................... 6-21
Heater. Engine
............................... 2-23
SurgeTank
.................................. 5-19
Cooling System
................................ 5- 17
Cornering Lamps ............................... 2-44
Courtesy Lamps
................................ 2-45 Courtesy
Transportation
........................... 8-6
Cruise Control
................................. 2-39
Customer Assistance for Text Telephone Users
......... 8-4
Customer Assistance Information
................... 8-1
Customer Satisfaction Procedure .................... 8-2
Damage. Finish
............................... 6-57
Damage. Sheet Metal
............................ 6-56
DateDisplay
................................... 2-80
Daytime Running Lamps
......................... 2-42
Dead Battery
................................... 5-3
Defensive Driving
............................... 4-2
Defogger. Rear Window
.......................... 3-9
Defogging
..................................... 3-9
Defrosting
..................................... 3-9
Delayed Illumination
............................ 2-45
DelayedLocking
................................ 2-6
DIC
.......................................... 2-75
Dimensions. Vehicle
............................ 6-72
Distance to Destination
.......................... 2-79
Door Defects.
Reporting Safety
......................... 8-8
Dolby@ B Noise Reduction ....................... 3-15
Ajar Reminder
................................ 2-5
Central Unlocking System
....................... 2-5
Locks
....................................... 2-4
Memory Locks
........................... 2-5. 2-11
Drive Position. Automatic Transaxle
................ 2-26
Driver Information Center
........................ 2-75
DriverPosition
................................. 1-13
9-3

Driving City
........................................ 4-20
Defensive
.................................... 4-2
Drunken
..................................... 4-3
Freeway
.................................... 4-21
InaBlizzard
................................. 4-27
IntheRain
.................................. 4-17
OnCurves
.................................. 4-11
On Grades While Towing a Trailer
............... 4-36
On Hill and Mountain Roads
.................... 4-23
On Snow
or Ice .............................. 4-26
Throughwater
............................... 4-19
WetRoads .................................. 4-17
Winter
...................................... 4-25
With a Trailer
................................ 4-35
DrunkenDriving
................................ 4-3
Night
...................................... 4-16
Elapsed Time Indicator
......................... 2-80
Electrical Equipment. Adding ........... 2.22. 3.25. 6-60
Electrical System
............................... 6-60
Electrochromic Daymight Rearview Mirror
.......... 2-48
Electronic Climate Control
........................ 3-2
Electronic Level Control
......................... 4-3 1
Engine ....................................... 6-10
Accessory Belt
............................... 6-72
Coolant
..................................... 6-21
Coolant Heater
............................... 2-23
Coolant Level Check
.......................... 7- 14
Coolant Temperature Gage
..................... 2-70
Exhaust
..................................... 2-31 Fuse Blocks
................................. 6-69
Identification
................................ 6-59
OilLevelCheck .............................. 7-14
Overheating
................................. 5-14
Running While Parked
......................... 2-32
Specifications
................................ 6-71
Starting Your
................................ 2-21
Engine Message (DIC)
........................... 2-77
EngineOil
.................................... 6-11
Adding
..................................... 6-11
Additives
................................... 6-14
Checlung
................................... 6-11
Life Monitor ................................. 2-78
Pressure Light
............................... 2-73
Used
....................................... 6-14
Whentochange
.............................. 6-14
Estimated Time
of Arrival ........................ 2-79
Exhaust, Engine
................................ 2-31
Exit Lighting
.................................. 2-46
Express-Down Window
.......................... 2-33
Fabric Cleaning
............................... 6-52
Fan Knob. Climate Control System
.................. 3-3
Filling Your Tank ................................ 6-5
Filter. Air
..................................... 6-17
Finish Care
.................................... 6-55
Finish Damage
................................. 6-57
First Gear. Automatic Transaxle
................... 2-26
Flashers. Hazard Warning
......................... 5-2
Flash-To-Pass Feature ........................... 2-37
Flat Tire. Changing
............................. 5-24
9-4

.
Tilt Steering Wheel ............................. 2-34
Time. Setting the
............................... 3-1 1
Tire-Loading Information Label
................... 4-29
Tires
......................................... 6-43
Alignment and Balance
........................ 6-49
BuyingNew
................................. 6-47
Chains
..................................... 6-50
Cleaning
.................................... 6-56
Compact Spare
............................... 5-33
Inflation
.................................... 6-44
Inflation Check
............................... 7- 14
Inspection and Rotation
........................ 6-45
Loading Your Vehicle
......................... 4-29
Pressure
.................................... 6-44
Temperature
................................. 6-48
Traction
.................................... 6-48
Treadwear
................................... 6-48
Uniform Quality Grading
....................... 6-48
Wear Indicators
.............................. 6-46
Wheel Replacement
........................... 6-49
When It’s Time
for New ....................... 6-46
TopStrap
..................................... 1-42
TorqueLock
................................... 2-30
Torque. Wheel Nut
......................... 5-30. 6-71
TowingaTrailer
................................ 4-31
Towing Your Vehicle
............................. 5-8
Traction ActiveLight
.................................. 4-9
Control System
................................ 4-8
Control System Active Light
................ 2-69. 4-9
Changing a Flat
.............................. 5-24
Control
System Warning Light
.............. 2.68. 4.9
Off Warning Light
............................. 4-9
Brakes
..................................... 4-34
Driving on Grades
............................ 4-36
Drivingwith
................................. 4-35
Engine Cooling
.............................. 4-37
Hitches
..................................... 4-34
Maintenance When Towing
..................... 4-37
Parking on Hills
.............................. 4-36
Safety Chains
................................ 4-34
Tongueweight
............................... 4-33
Total Weight on Tires
.......................... 4-34
Towing
..................................... 4-31
Turnsignals
................................. 4-36
Weight
..................................... 4-32
Transaxle Fluid. Automatic
....................... 6-18
Transaxle Fluid Life
............................. 2-77
Transmitter
.................................... 2-56
Remote Lock Control
........................... 2-9
Universal
................................... 2-56
Transportation. Courtesy
.......................... 8-6
Trip Odometer
................................. 2-63
Trunk Lock
....................................... 2-14
Release. Remote
.............................. 2-14
Security Override
............................. 2-14
Trunk Mounted Compact Disc Changer
............. 3-18
TTYUsers
..................................... 8-4
Turn Signal and Lane Change Signals
............... 2-35
Turn Signal On Chime
........................... 2-35
Trailer
9-11