2003 OLDSMOBILE SILHOUETTE coolant temperature

Engine Coolant Heater
Your vehicle may have an engine coolant heater. In very
cold weather,
0°F (-1 8°C) or colder, the engine coolant
heater can help. You’ll get easier starting and better fuel
economy during engine warm-up. Usually, the coolant
prior to starting your vehicle. At temperatures above
32°F (OOC), use of the coolant heater is not required.
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To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the eieciricai cord.
The electrical cord is located on the driver’s side
of the engine compartment.
3. Plug it into a normal, grounded 1 10-volt AC outlet.
Plugging the cord into an ungrounded outlet
could cause an electrical shock.
Also, the
wrong kind
of extension cord could overheat
and cause a fire. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt
AC outlet. If the cord
won’t reach, use a heavy-duty three-prong
extension cord rated
for at least 15 amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts.
If you don’t, it could be
damaged.
How long should you keep the coolant heater plugged
kind of oil you have, and some other things. Instead
of trying to list everything here, we ask that you contact
your dealer in the area where you’ll be parking your
vehicle. The dealer can give you the best advice for that
particular area.
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2-35

Section 3 Instrument Panel
Instrument Panel Overview ........................... 3.4
Hazard Warning Flashers
............................ 3.6
Other Warning Devices
............................... 3.6
Horn
............................................................. 3.7
Tilt Wheel
..................................................... 3-7
Turn SignaVMultifunction Lever
......................... 3.7
Exterior Lamps
............................................. 3.14
Interior Lamps
.............................................. 3.17
Switchbanks
................................................. 3.21
Instrument Panel Switchbank
.......................... 3-21
Overhead Console Switchbank
....................... 3.21
Ultrasonic Rear Parking Assist (URPA)
............ 3.22
Accessory Power Outlets
............................... 3.24
Climate Controls
............................................ 3.25
Climate Control System
................................. 3.25
Dual Climate Control System
.......................... 3.28
Rear Climate Control System
Rear Climate Control System (With Entertainment System)
...................... -3-34
Passenger Compartment Air Filter
................... 3.37
Warning Lights, Gages and Indicators
............. 3.39
Instrument Panel Cluster
................................ 3.40
Outlet Adjustment
......................................... 3.31
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Speedometer and Odometer ........................... 3.41 Safety
Belt Reminder Light
............................. 3.42
Air Bag Readiness Light
................................ 3-43
Brake System Warning Light
.......................... 3-44
Anti-Lock Brake System Warning Light
............. 3-45
Traction Control System (TCS) Warning Light
...... 3-46
Engine Coolant Temperature Gage
.................. 3-47
Malfunction Indicator Lamp
............................. 3-47
Fuel Gage
................................................... 3-51
Message Center
............................................. 3-52
Service Traction System Warning Message
...... 3-52
Traction Active Message
................................ 3-53
Engine Coolant Temperature Warning
Message
.................................................. 3-53
Charging System Indicator Message
................ 3-54
Low Oil Pressure Message
............................ 3-54
Low Engine Oil Level Message
....................... 3-55
Change Engine Oil Message
.......................... 3-56
Power Sliding Door Warning Message
............. 3-56
Rear Hatch Ajar Warning Message
.................. 3-58
PASS-Key@
I II Security Message ................... -3-58
All-Wheel Drive Disable Warning Message
....... 3-59
Low Fuel Warning Message
........................... 3-59
Driver Information Center (DIC)
....................... 3-60
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3- 1

Engine Coolant Temperature Gage
United States
\[-I/
u
Canada
This gage shows the engine coolant temperature.
If the
gage pointer moves into the red area, your engine is
too hot!
It means that your engine coolant has overheated.
If you have been operating your vehicle under normal
drivinq conditions, vou should pull
off the road, stop your
vehicle and turn
off the engine as soon as possible.
See
Engine Overheating on page 5-26.
Malfunction Indicator Lamp
Service Engine Soon Light in the
United States or Check Engine Light
in Canada
SERVICE
ENGINE
SOON
United States Canada
Your vehicle is equipped with a computer which
monitors operation
of the fuel, ignition and emission
control systems.
This system is called
OBD II (On-Board Diagnostics-
Second Generation) and is intended
to assure that
emissions are at accepiabie ieveis ior ine iiie
of ihe
vehicle, helping to produce a cleaner environment.
3-47

Traction Active Message
TRACTION ACTIVE
United States Canada
If your vehicle has the traction control system, the
TRACTION ACTIVE message will appear when the
traction control system is limiting wheel spin. You may
feel or hear the system working, but this is normal.
Slippery road conditions may exist
if this message
appears,
so adjust your driving accordingly.
The message will stay on for a few seconds after
the traction control system stops limiting wheel spin.
Engine Coolant Temperature
Warning Message
I 1 I
HOT
COOLANT
TEMP
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
En-qine Overheatinq on page 5-26.
3-53

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
Engine Overheating on
page
5-26.
A 5060 mixture of clean, drinkable water and
DEX-COOL@ coolant will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265°F
(129°C).
0 Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning messages 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.
5-23

Radiator Pressure Cap
Notice: Your radiator cap is a 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.
The radiator pressure cap is located at the front of the
engine compartment on the passenger’s side of the
vehicle. See
Engine Compartment Overview on
page 5-72 for more information on location.
Engine Overheating
You will find an engine coolant temperature gage on
your vehicle’s instrument panel cluster. See
Engine
Coolant Temperature Gage
on page 3-47. You also
have an engine coolant temperature warning message
on your instrument panel. See
Engine Coolant
Temperature Warning Message
on page 3-53.
Overheated Engine Protection
Operating Mode
This emergency operating mode allows your vehicle to
be driven to a safe place in an emergency situation.
If an overheated engine condition exists, an overheat
protection mode which alternates firing groups of
cylinders helps prevent engine damage.
In this mode,
you will notice a significant
loss in power and engine
performance. The temperature gage will indicate
an overheat condition exists. Driving extended miles
(km) and/or towing a trailer in the overheat protection
mode should be avoided.
Notice: After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any repair. The engine oil will be severely degraded.
Repair the cause
of coolant loss, change the oil
and reset the
oil life system. See “Engine Oil” in
the Index.
5-26

100,000 Miles (166 000 km)
0 Inspect spark plug wires. An Emission Control
0 Replace spark plugs. An Emission Control Service.
Service.
0 Change automatic transaxle
fluid and filter if the
vehicle is mainly driven under one or more of
these conditions:
- In heavy city traffic where the outside
temperature regularly reaches
90°F (32°C)
or higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery
service.
0 If you haven’t used your vehicle under severe service
conditions listed previously and, therefore, haven’t
changed your automatic transaxle fluid, change both
the fluid and filter.
150,000 Miles (240 000 km)
U Drain, flush and refill cooling system (or every
60 months since last service, whichever occurs first).
See
Engine Coolant on page 5-23 for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
0 Inspect engine accessory drive belt. An Emission
Control Service.
6-9

Climate Control System (cont.)
Outlet Adjustment
.................................... 3-31
Rear
.................................................. 3-32, 3-34
Comfort Controls
............................................. 3-25
Compact Disc Messages
................. 3-25, 3-79, 3-91
Compact Overhead Console
............................. 2-54
Compact Spare Tire
........................................ 5-86
Compass Variance
.......................................... 3-61
Content Theft-Deferrent
.................................... 2-27
Content Theft-Deterrent System
........................ 2-69
Content Theft-Deterrent System, Arming and
Disarming
................................................... 2-70
Control of a Vehicle
.......................................... 4-6
Convenience Center
........................................ 2-60
Convenience Net
............................................ 2-59
Coolant Engine Temperature Gage
............................ 3-47
Engine Temperature Warning Message
........... 3-53
Heater, Engine
............................................ 2-35
Cooling System
.............................................. 5-29
Cruise Control
................................................ 3-1 0
Cupholder(s) .................................................. 2-54
Current and Past Model Order Forms
................ 7-1 1
Customer Assistance Information
Courtesy Transportation
.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users
............................... 7-3
Customer Assistance Offices
........................... 7-4 Customer
Assistance Information (cont.)
Customer Satisfaction Procedure
..................... 7-2
GM Mobility Program for Persons with
Disabilities
................................................ 7-5
Reporting Safety Defects to General Motors
...... 7-9
Reporting Safety Defects to the Canadian
Government
.............................................. 7-9
Reporting Safety Defects to the United States
Government
.............................................. 7-9
Roadside Assistance Program
......................... 7-5
Service Publications Ordering Information ........ 7-10
Daytime Running Lamps/Automatic
Headlamp System
....................................... 3-15
Defensive Driving
............................................. 4-2
Defogging and Defrosting
......................... 3-27, 3-30
Delayed Lighting
............................................. 3-18
Delayed
Illumination and Exit Lighting
................ 2-63
Dinghy Towing
................................................ 4-33
Directing the Airflow
................................ 3-33, 3-35
Disarming with the Remote Keyless
Disarming with Your Key
.................................. 2-28
Doing Your Own Service Work
........................... 5-3
Dolly Towing
.................................................. 4-33
Dome Lamp
................................................... 3-17
Entry Transmitter
..................................... 2-28
4