2004 Oldsmobile Alero coolant temperature

Engine Coolant Heater
Your vehicle may have this feature. In very cold
weather, 0°C (−18°F) or colder, the engine coolant
heater can provide easier starting and better fuel
economy during engine warm-up. Usually, the coolant
heater should be plugged in a minimum of four
hours prior to starting your vehicle. At temperatures
above 32°F (0°C), use of the coolant heater is not
required. 2.2L L4 ECOTEC™ Engine
3400 V6 Engine
2-20

To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord. On
the 2.2L L4 ECOTEC™ engine, the engine coolant
heater cord is located in front of the coolant
surge tank on the passenger’s side. On the
3400 V6 engine, the engine coolant heater cord is
located near the engine air cleaner/filter. See
Engine Compartment Overview on page 5-12for
more information on location.
3. Plug the cord into a normal, grounded 110-volt AC
outlet.{CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the
wrong kind of extension cord could overheat
and cause a re. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt AC outlet. If the cord will
not 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
in? The answer depends on the outside temperature, the
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.
2-21

Instrument Panel Overview...............................3-2
Hazard Warning Flashers................................3-4
Other Warning Devices...................................3-5
Horn.............................................................3-5
Tilt Wheel.....................................................3-5
Turn Signal/Multifunction Lever.........................3-6
Windshield Wiper Lever...................................3-9
Cruise Control..............................................3-10
Exterior Lamps.............................................3-14
Interior Lamps..............................................3-16
Accessory Power Outlets...............................3-18
Ashtrays and Cigarette Lighter........................3-19
Climate Controls............................................3-19
Climate Control System.................................3-19
Outlet Adjustment.........................................3-22
Warning Lights, Gages and Indicators.............3-23
Instrument Panel Cluster................................3-24
Speedometer and Odometer...........................3-25
Tachometer.................................................3-25
Safety Belt Reminder Light.............................3-26
Air Bag Readiness Light................................3-26
Charging System Light..................................3-27
Up-Shift Light...............................................3-28
Brake System Warning Light..........................3-28
Anti-Lock Brake System Warning Light.............3-29
Enhanced Traction System Warning Light.........3-30
Enhanced Traction System Active Light............3-31
Engine Coolant Temperature Gage..................3-31
Low Coolant Warning Light............................3-32Malfunction Indicator Lamp.............................3-32
Oil Pressure Light.........................................3-35
Change Engine Oil Light................................3-36
Security Light...............................................3-37
Cruise Control Light......................................3-37
Low Washer Fluid Warning Light.....................3-37
Service Vehicle Soon Light............................3-38
Fuel Gage...................................................3-38
Audio System(s).............................................3-39
Setting the Time for Radios without Radio
Data Systems (RDS)..................................3-39
Setting the Time for Radios with Radio Data
Systems (RDS).........................................3-40
Radio with CD (Base Level)...........................3-40
Radio with CD (Up Level)..............................3-45
Radio with Cassette and CD..........................3-55
Theft-Deterrent Feature
(RDS Radios)...........................................3-67
Understanding Radio Reception......................3-67
Care of Your Cassette Tape Player.................3-67
Care of Your CDs.........................................3-68
Care of Your CD Player................................3-68
Backglass Antenna.......................................3-69
XM™ Satellite Radio Antenna System
(48 Contiguous US States).........................3-69
Chime Level Adjustment................................3-69
Section 3 Instrument Panel
3-1

A(Floor):This mode directs most of the air to the floor
outlets with some air directed to the side windows.
The right knob can also be used to select defog or defrost
modes. Information on defogging and defrosting can be
found later in this section.
9(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
:(Outside Air):Press this button to turn the outside
air mode on or off. When this mode is on, outside air will
circulate throughout your vehicle. The outside air mode
can be used with all modes, but it cannot be used with the
recirculation mode.
?(Recirculation):This mode keeps outside air from
coming in the vehicle. It can be used to prevent outside
air and odors from entering your vehicle or to help heat or
cool the air inside your vehicle more quickly. Press this
button to turn the recirculation mode on or off. The
air-conditioning compressor will come on. The
recirculation mode cannot be used with the outside air
mode. Recirculation is not available when in the defog or
defrost modes or when the fan is off.When you switch to the defog or defrost modes the
system will automatically move from recirculation to
outside air. When you move the mode knob back to
another mode, the system will move back into
recirculation. When the car is turned off and back on the
system will default to outside air automatically.
Temperature Control:Turn the center knob clockwise
or counterclockwise to manually increase or decrease
the temperature inside your vehicle.
When it’s cold outside 0°F (−18°C) or lower, use the
engine coolant heater, if equipped, to provide warmer air
faster to your vehicle. An engine coolant heater warms
the coolant that the engine uses to provide heat to
warm the inside of your vehicle. For more information,
seeEngine Coolant Heater on page 2-20.
A/C (Air Conditioning):Press this button to turn the
air-conditioning system on or off. When A/C is pressed,
an indicator light in the button will come on to let you
know that air conditioning is activated.
The fan knob must be set to a speed for the air
conditioning to operate.
3-20

Enhanced Traction System Active
Light
If your vehicle has the
Enhanced Traction System
(ETS), this light will
come on when the system
is limiting wheel spin.
Slippery road conditions may exist if the Enhanced
Traction System active light comes on, so adjust your
driving accordingly.
The light will stay on for a few seconds after the
Enhanced Traction System stops limiting wheel spin.
The Enhanced Traction System active light also comes
on briefly when you turn the ignition key to ON. If
the light doesn’t come on then, have it fixed so it will be
there to tell you when the system is active.
Engine Coolant Temperature Gage
This gage shows the
engine coolant
temperature. If the gage
pointer moves into the red
area, the light comes
on and you hear a chime,
your engine is too hot.
It means that your engine
coolant has overheated.
SeeEngine Overheating on page 5-26.
3-31

Low Coolant Warning Light
This light comes on
briefly when you turn your
ignition on.
If this light comes on and stays on and you hear a
chime, the coolant level in your vehicle is low.
SeeEngine Coolant on page 5-23. If the light is on
along with an overheat warning, you may have a serious
overheating problem. SeeEngine Coolant Temperature
Gage on page 3-31listed previously.
Notice:If you operate the engine without coolant
or fail to maintain the cooling system properly,
you could damage the engine. The repairs would not
be covered by your warranty. Always follow the
maintenance schedule in this manual for
maintaining your cooling system. SeeCooling
System on page 5-29for more information.
SeeEngine Overheating on page 5-26for information
on what to do. Your vehicle should be serviced as soon
as possible.
Malfunction Indicator Lamp
Service Engine Soon Light in the
United States or Check Engine Light in
Canada
Your vehicle is equipped with a computer which
monitors operation of the fuel, ignition and emission
control systems.
United StatesCanada
3-32

How to Check and Add Fluid
You do not need to check the fluid level unless you
suspect a clutch problem. To check the fluid level, take
the cap off. If the fluid level reaches the top of the
reservoir, the fluid level is correct. It isn’t a good idea to
top off your clutch fluid. Adding fluid won’t correct a
leak. A fluid loss in this system could indicate a problem.
Have the system inspected and repaired.
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, seeEngine Overheating on
page 5-26.A 50/50 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).
•Protect against rust and corrosion.
•Help keep the proper engine temperature.
•Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®may
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your vehicle.
5-23

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.
If the low coolant light
comes on and stays on, it
means you’re low on
engine coolant.
SeeLow Coolant Warning Light on page 3-32for more
information.
Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixtureat the surge tank, but only when the
engine is cool. If the surge tank is empty, a special fill
procedure is necessary. SeeEngine Overheating
on page 5-26and “How to Add Coolant to the Coolant
Surge Tank” underCooling System on page 5-29
for instructions.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Don’t spill coolant on a hot engine.
When replacing the pressure cap, make sure it is
hand-tight.
Engine Overheating
You will find a coolant temperature gage and a low
coolant warning light on your vehicle’s instrument panel.
SeeEngine Coolant Temperature Gage on page 3-31
andLow Coolant Warning Light on page 3-32.
5-26