1999 OLDSMOBILE AURORA heater

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5-14
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.
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.
How to Add Coolant to the Coolant
Surge Tank
If you haven't found a problem yet, but the coolant level
isn't at FULL COLD, add a 50/50 mixture of clean,
drinkable water and DEX
-COOL
coolant at the
coolant surge tank, but be sure the cooling system,
including the coolant surge tank pressure cap, is cool
before you do it. (See ªEngine Coolantº in the Index for
more information.)
CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They are
under pressure, and if you turn the coolant surge
tank pressure cap
-- even a little -- they can come
out at high speed. Never turn the cap when the
cooling system, including the coolant surge tank
pressure cap, is hot. Wait for the cooling system
and coolant surge tank pressure cap to cool if you
ever have to turn the pressure cap.
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5-15
CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, 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:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts. So
use the recommended coolant.
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6-21
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, a GM thermostat
is recommended.
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL
extended life coolant.
The following explains your cooling system and how
to add coolant when it is low. If you have a problem
with engine overheating, see ªEngine Overheatingº in
the Index.
A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).
Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
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.
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6-22 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.
CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, 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 and crack the engine, radiator, heater core
and 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.
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9-3
Climate Controls 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Electronic 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Front Passenger 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock, Setting the 3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Controls 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Care 3-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Changer, Trunk-Mounted 3-17 . . . . . . . . . . . . .
Compact Disc Errors, Changer 3-18 . . . . . . . . . . . . . . . . . .
Loading the Magazine 3-17 . . . . . . . . . . . . . . . . . . . . . . . . .
Playing a Compact Disc 3-19 . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Player 3-10, 3-15 . . . . . . . . . . . . . . . . . . . . . . .
Care 3-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Errors 3-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Spare Tire 5-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control of a Vehicle 4-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convenience Net 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside Mirror 2-50 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater, Engine 2-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Surge Tank 5-12, 5-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling System 5-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cornering Lamps 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Lamps 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Transportation 8-7 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Light 2-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Assistance
For Text Telephone Users 8
-4 . . . . . . . . . . . . . . . . . . . . . . .
Information 8-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Offices 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Satisfaction Procedure 8-2 . . . . . . . . . . . . . . . . . . . .
Damage, Finish 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Damage, Sheet Metal 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Date Display 2-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daytime Running Lamps (DRL) 2-42 . . . . . . . . . . . . . . . . . . .
Dead Battery 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defects, Reporting Safety 8-10 . . . . . . . . . . . . . . . . . . . . . . . .
Defensive Driving 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defogger, Rear Window 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . .
Defogging 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defrosting 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Delayed Illumination 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Delayed Locking 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIC 2-75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions, Vehicle 6-72 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disabilities, GM Program for Persons With 8-5 . . . . . . . . . . .
Distance to Destination 2-79 . . . . . . . . . . . . . . . . . . . . . . . . . .
Dolby Noise Reduction 3-14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Door
Ajar Reminder 2
-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Central Unlocking System 2-4 . . . . . . . . . . . . . . . . . . . . . . .
Locks 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Locks 2-5, 2-11 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Position, Automatic Transaxle 2-26 . . . . . . . . . . . . . . . .
Driver Information Center (DIC) 2-75 . . . . . . . . . . . . . . . . . . .
Driver Position 1-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving
City 4
-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defensive 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drunken 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freeway 4-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In a Blizzard 4-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In the Rain 4-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Night 4-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Curves 4-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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9-4
On Grades While Towing a Trailer 4-37 . . . . . . . . . . . . . . .
On Hill and Mountain Roads 4-23 . . . . . . . . . . . . . . . . . . . .
On Snow or Ice 4-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Through Water 4-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wet Roads 4-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winter 4-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
With a Trailer 4-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRL 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drunken Driving 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Elapsed Time Indicator 2-81 . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Equipment, Adding 2-22, 3-24, 6-60 . . . . . . . . . . .
Electrical System 6-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrochromic Day/Night Rearview Mirror 2-47 . . . . . . . . . .
Electronic Climate Control 3-2 . . . . . . . . . . . . . . . . . . . . . . . .
Electronic Level Control 4-31 . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 6-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Belt 6-72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner/Filter 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater 2-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Level Check 7-14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-70 . . . . . . . . . . . . . . . . . . . . .
Exhaust 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Blocks 6-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Check 7-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheating 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-32 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Message (DIC) 2-78 . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Oil 6
-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Life Indicator 2-78, 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Life Monitor 2-78, 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Light 2-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Estimated Time of Arrival 2-80 . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exit Lighting 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Express-Down Window 2-33 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Knob, Climate Control System 3-3 . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter/Cleaner, Air 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Capacities 6-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluids and Lubricants 7-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Lamps 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
French Language Manual ii. . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Storage Armrest 2
-51 . . . . . . . . . . . . . . . . . . . . . . . . . . .
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yellowblue
9-10
Skidding 4-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sound Equipment, Adding 3-24 . . . . . . . . . . . . . . . . . . . . . . . .
Spare Tire, Compact 5-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications and Capacities 6-70 . . . . . . . . . . . . . . . . . . . . . .
Specifications, Engine 6-71 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speech Impaired, Customer Assistance 8-4 . . . . . . . . . . . . . . .
Speedometer 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS 1-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stains, Cleaning 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Switch Check 7-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your Engine 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steam 5-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Emergencies 4-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Magnasteer
4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tips 4-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel, Tilt 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Wheel Controls 3-9, 3-22 . . . . . . . . . . . . . . . . . . . . .
Storage Compartments 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage, Vehicle 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stuck: In Sand, Mud, Ice or Snow 5-29 . . . . . . . . . . . . . . . . . .
Sun Visors 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sunroof 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplemental Restraint System 1-21 . . . . . . . . . . . . . . . . . . . .
Surge Tank, Coolant 5-12, 5-14 . . . . . . . . . . . . . . . . . . . . . . . .
Surge Tank Pressure Cap 6-23 . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols, Vehicle v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillamp Bulb Replacement 6-38 . . . . . . . . . . . . . . . . . . . . . . .
Tape Player Care 3-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Button, Climate Control System 3-3 . . . . . . . . . . Temperature Control, Passenger 3
-8 . . . . . . . . . . . . . . . . . . . .
Theater Dimming 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THEFTLOCK
3-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermostat 6-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Gear, Automatic Transaxle 2-26 . . . . . . . . . . . . . . . . . . .
Tilt Steering Wheel 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time, Setting the 3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire-Loading Information Label 4-30 . . . . . . . . . . . . . . . . . . .
Tires 6-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance 6-49 . . . . . . . . . . . . . . . . . . . . . . . .
Buying New 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Spare 5-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation Check 7-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Rotation 6-45 . . . . . . . . . . . . . . . . . . . . . . . .
Loading Your Vehicle 4-30 . . . . . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . . .
Top Strap 1-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Lock 2-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque, Wheel Nut 5-25, 6-71 . . . . . . . . . . . . . . . . . . . . . . . . .
Towing a Trailer 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Towing, Recreational Vehicle 4-29 . . . . . . . . . . . . . . . . . . . . .
Towing Your Vehicle 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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