2004 CHEVROLET IMPALA heater

{CAUTION:
An electric engine cooling fan under the hood
can start up even when the engine is not
running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.
If the coolant inside the coolant recovery tank is boiling,
don’t do anything else until it cools down. The vehicle
should be parked on a level surface.
The coolant level should
be at or above the COLD
mark on the coolant
recovery tank.To check the coolant level, look for the COLD mark on
the side of the coolant recovery tank that faces the
engine. When the engine is cold, the coolant level
should be at or above the COLD mark on the coolant
recovery tank. If it isn’t, you may have a leak at the
pressure cap or 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. Do not touch them.
If you do, you can be burned.
Do not run the engine if there is a leak. If you
run the engine, it could lose all coolant. That
could cause an engine re, and you could be
burned. Get any leak xed before you drive the
vehicle.
5-36

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.
Notice:Engine damage from running your engine
without coolant is not covered by your warranty. See
“Overheated Engine Protection Operating Mode”
in the Index for information on driving to a safe
place in an emergency.
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.
How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at the COLD mark, add a 50/50 mixture ofclean,
drinkable waterand DEX-COOL
®engine coolant at
the coolant recovery tank. SeeEngine Coolant on
page 5-29
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as 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 would not get the overheat warning.
Your engine could catch re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
5-37

Notice:In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mixture.
The coolant recovery tank is located in the rear of the
engine compartment on the passenger’s side of the
vehicle. SeeEngine Compartment Overview on
page 5-12
{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. Do not spill coolant on a hot engine.
When the coolant in the coolant recovery tank is at the
COLD mark, start your vehicle.
If the overheat warning continues, there’s one more
thing you can try. You can add the proper coolant
mixture directly to the radiator, but be sure the cooling
system is cool before you do it.
5-38

Compact Spare Tire........................................5-93
Compass Variance..........................................3-53
Console Shift Lever.........................................2-28
Content Theft-Deterrent....................................2-15
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-42
Coolant
Engine Temperature Gage............................3-36
Heater, Engine............................................2-20
Hot Temperature Warning Message................3-45
Cooling System..............................................5-35
Courtesy Lamps.............................................3-17
Cruise Control................................................3-11
Cruise Control Light........................................3-41
Current and Past Model Order Forms................7-13
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors....7-11Customer Assistance Information (cont.)
Reporting Safety Defects to the Canadian
Government............................................7-11
Reporting Safety Defects to the United States
Government............................................7-11
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-12
D
Daytime Running Lamps/Automatic Headlamp
System......................................................3-15
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-23
Delayed Entry Lighting.....................................3-17
Delayed Exit Lighting.......................................3-18
Delayed Headlamps........................................3-16
Dinghy Towing................................................4-31
Disarming with the Remote Keyless Entry
Transmitter.................................................2-16
Disarming with Your Key..................................2-16
Doing Your Own Service Work........................... 5-4
Dolly Towing..................................................4-31
Dome Lamp...................................................3-18
4

Door
Ajar Warning Message.................................3-48
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Driver
Position, Safety Belt.....................................1-14
Driver Information Center (DIC).........................3-52
Driver’s Side Instrument Panel Fuse Block........5-104
Driving
At Night.....................................................4-15
City...........................................................4-20
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-21
Hill and Mountain Roads..............................4-23
In Rain and on Wet Roads...........................4-17
Winter........................................................4-25
Driving On Grades..........................................4-42
Driving on Snow or Ice....................................4-26
Driving Through Deep Standing Water...............4-18
Driving Through Flowing Water.........................4-19
Driving with a Trailer.......................................4-41
Dual Climate Control System............................3-20E
Electrical System
Add-On Equipment.....................................5-103
Fuses and Circuit Breakers.........................5-103
Headlamp Wiring.......................................5-103
Power Windows and Other Power Options....5-103
Windshield Wiper Fuses.............................5-103
Emergency Trunk Release Handle.....................2-12
Emissions Inspection and Maintenance
Programs...................................................3-40
Engine
Air Cleaner/Filter.........................................5-25
Battery.......................................................5-50
Change Oil Message...................................3-47
Check and Service Engine Soon Light............3-37
Coolant......................................................5-29
Coolant Heater............................................2-20
Coolant Temperature Gage...........................3-36
Drive Belt Routing.......................................6-14
Engine Compartment Overview......................5-12
Exhaust.....................................................2-31
Low Oil Level Message................................3-47
Oil .............................................................5-18
5

Storage Areas (cont.)
Front Storage Area......................................2-42
Glove Box..................................................2-42
Rear Storage Area.......................................2-42
Storing the Flat Tire and Tools..........................5-91
Storing the Spare Tire and Tools.......................5-92
Stuck in Sand, Mud, Ice or Snow......................4-29
Sun Visors.....................................................2-14
Sunroof.........................................................2-43
T
Tachometer....................................................3-31
Taillamps
Turn Signal, Stoplamps and Sidemarker
Lamps....................................................5-61
TCS Warning Light..........................................3-35
Theft-Deterrent, Radio.....................................3-92
Theft-Deterrent Systems...................................2-15
Content Theft-Deterrent................................2-15
Passlock
®...................................................2-16
Tilt Wheel........................................................ 3-7
Tire
Low Message.............................................3-48
Tire Ination Check........................................... 6-9
TIRE MON (Tire Ination Monitor Reset)............2-45
Tire Sidewall Labeling......................................5-64
Tire Size.......................................................5-68Tire Terminology and Denitions........................5-69
Tires.............................................................5-64
Buying New Tires........................................5-76
Chains.......................................................5-80
Changing a Flat Tire....................................5-82
Compact Spare Tire.....................................5-93
If a Tire Goes Flat.......................................5-81
Ination - Tire Pressure................................5-72
Inspection and Rotation................................5-75
Pressure Monitor System..............................5-73
Uniform Tire Quality Grading.........................5-77
Wheel Alignment and Tire Balance.................5-79
Wheel Replacement.....................................5-79
When It Is Time for New Tires......................5-76
To Use the Engine Coolant Heater....................2-21
Top Strap......................................................1-42
Top Strap Anchor Location...............................1-43
Torque Lock...................................................2-29
Total Weight on Your Vehicle’s Tires..................4-40
Towing
Recreational Vehicle.....................................4-30
Towing a Trailer..........................................4-37
Your Vehicle...............................................4-30
Traction
Active Message...........................................3-44
Control System (TCS).................................... 4-8
Control System Warning Light.......................3-35
Service Traction System Warning Message.....3-43
14