2001 Oldsmobile Silhouette coolant level

2-110 Engine Coolant Temperature
Warning Message
United States Canada
This message will come on when your engine gets
too hot.
If this message comes on, it means that your engine
coolant has overheated. If you have been operating your
vehicle under normal driving conditions, you should
pull off the road, stop your vehicle and turn off the
engine as soon as possible.
See ªEngine Overheatingº in the Index.
Low Oil Pressure Message
United States Canada
Your vehicle is equipped with a low oil pressure
warning message.
Your oil pressure message lets you know when you may
have a problem with your engine oil pressure.
When the engine is running and this message appears,
the engine oil level may be too low. There may also be
another problem causing low oil pressure.

3-4
When the air conditioner compressor is on, you may
sometimes notice slight changes in your vehicle's engine
performance and power. This is normal. The system is
designed to help fuel economy while it maintains the
desired cooling level.
The air conditioner removes moisture from the air,
so you may sometimes notice water dripping from
under your vehicle's engine compartment when it is
idling or after it has been turned off. This is normal.
Heating
Turn the temperature knob clockwise (toward the
red area) to warm the air.
In the LOWER setting, outside air will be brought in
and sent through the floor outlets. The heater works
best if you keep your windows closed while using it.
The BI
-LEVEL setting is designed for use on sunny
days when the air is only moderately warm or cool.
On days like these, the sun may adequately warm your
upper body, but your lower body may not be warm
enough. For the best results, turn the temperature knob
to the middle position, and then adjust it for comfort.Your vehicle has a computer controlled transaxle
designed to warm up the engine faster when the outside
temperature is 35
F (2
C) or colder. You may notice
that the transaxle will shift at a higher vehicle speed
until the engine is warmed up. This is a normal
condition designed to provide heat to the passenger's
compartment and defrost the windows more quickly.
If you have the optional engine coolant heater and use
it during cold weather, 0
F (
-18
C) or lower, your
heating system will provide heat more quickly because
the engine coolant is already warmed. See ªEngine
Coolant Heaterº in the Index.
Defogging and Defrosting
To rapidly defrost the windshield, turn the temperature
knob all the way clockwise (to the red area) and turn
the mode knob to DEFROST. Adjust the fan to the
highest speed.
To keep the windshield clear and bring in heated air through
the heater ducts, turn the mode knob to DEFOG.
When the temperature outside is above freezing, the air
conditioner compressor will run in these settings to help
remove moisture from the air.

3-8 Heating
Move the temperature lever up (toward the red area)
to warm the air.
In the LOWER setting, outside air will be brought in
and sent through the floor outlets. The heater works
best if you keep your windows closed while using it.
The BI
-LEVEL setting is designed for use on sunny
days when the air is only moderately warm or cool.
On days like these, the sun may adequately warm your
upper body, but your lower body may not be warm
enough. For the best results, move the temperature knob
to the middle position, and then adjust it for comfort.
Your vehicle has a computer controlled transaxle
designed to warm up the engine faster when the outside
temperature is 35
F (2
C) or colder. You may notice
that the transaxle will shift at a higher vehicle speed until
the engine is warmed up. This is a normal condition
designed to provide heat to the passenger's compartment
and defrost the windows more quickly.
If you have the optional engine coolant heater and use
it during cold weather, 0
F (
-18
C) or lower, your
heating system will provide heat more quickly because
the engine coolant is already warmed. See ªEngine
Coolant Heaterº in the Index.
Defogging and Defrosting
To rapidly defrost the windshield, move the temperature
knob all the way up (to the red area) and turn the mode
knob to DEFROST. Adjust the fan to the highest speed.
To keep the windshield clear and bring in heated air through
the heater ducts, turn the mode knob to DEFOG.
When the temperature outside is above freezing, the
air conditioner compressor will run in these settings to
help remove moisture from the air.
Your vehicle is equipped with side window defogger
vents located on the top of the instrument panel.
For additional side window defogging, turn the mode
knob to the BI
-LEVEL setting and adjust the fan to
the highest speed. Aim the side vents on the instrument
panel toward the side windows. For increased airflow to
the side vents, close the center vents.
Operating the HVAC system in the RECIRCULATION
mode may cause fogging of the vehicle's windows when
the weather is cold and damp. To clear the fog, switch
the HVAC system to either the DEFOG or DEFROST
mode and increase the fan speed. To avoid re
-fogging
of the windows, operate the HVAC system in the
OUTSIDE AIR mode.
For additional information, refer to ªRECIRCULATIONº
earlier in this section.

5-13
When the engine is cold, the coolant level should be at
or above the FULL COLD mark. If it isn't, you may
have a leak in the radiator hoses, heater hoses, radiator,
water pump or somewhere else in the cooling system.
CAUTION:
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.
NOTICE:
Engine damage from running your engine
without coolant isn't covered by your warranty.
See ªOverheated Engine Protection Operating
Modeº in the Index.

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
Recovery Tank
If you haven't found a problem yet, but the coolant level
isn't at or above the FULL COLD mark, add a 50/50
mixture of clean, drinkable water and DEX
-COOL

engine coolant at the coolant recovery tank. See ªEngine
Coolantº in the Index for more information.
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.

5-19
6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fans.
7. By this time, the coolant level inside the radiator
filler neck may be lower. If the level is lower, add
more of the proper DEX
-COOL
coolant mixture
through the filler neck until the level reaches the
base of the filler neck.
8. Then replace the pressure cap. At any time during
this procedure if coolant begins to flow out of the
filler neck, reinstall the pressure cap. Be sure the
arrows on the pressure cap line up like this.

6-
6-1
Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-5 Fuels in Foreign Countries
6
-6 Filling Your Tank
6
-8 Filling a Portable Fuel Container
6
-9 Checking Things Under the Hood
6
-12 Engine Oil
6
-17 Engine Air Cleaner/Filter
6
-18 Passenger Compartment Air Filter
Replacement
6
-20 Automatic Transaxle Fluid
6
-23 Engine Coolant
6
-26 Radiator Pressure Cap
6
-27 Power Steering Fluid
6
-28 Windshield Washer Fluid
6
-29 Brakes6
-32 Battery
6
-33 Bulb Replacement
6
-40 Windshield Wiper Blade Replacement
6
-42 Tires
6
-51 Appearance Care
6
-51 Cleaning the Inside of Your Vehicle
6
-55 Cleaning the Outside of Your Vehicle
6
-58 Underbody Maintenance
6
-58 Chemical Paint Spotting
6
-59 GM Vehicle Care/Appearance Materials
6
-60 Vehicle Identification Number (VIN)
6
-61 Electrical System
6
-69 Replacement Bulbs
6
-69 Capacities and Specifications
6
-70 Normal Maintenance Replacement Parts

6-25 Checking Coolant
The engine coolant reservoir is located on the driver's
side of the vehicle, above the engine air cleaner/filter.
See ªEngine Compartment Overviewº in the Index
for more information on location.The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at the FULL
COLD mark, or a little higher. When your engine is
warm, the level should be above the FULL COLD mark
or a little higher.
Adding Coolant
If you need more coolant, add the proper DEX
-COOL

coolant mixture at the coolant recovery tank.
CAUTION:
Turning the radiator pressure cap when the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn you
badly. With the coolant recovery tank, you will
almost never have to add coolant at the radiator.
Never turn the radiator pressure cap
-- even a
little
-- when the engine and radiator are hot.