2004 CHEVROLET AVALANCHE coolant temperature

How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind of transmission uid to use. SeeRecommended
Fluids and Lubricants on page 6-13.
Add uid only after checking the transmission uid while
it is hot. (A cold check is used only as a reference.)
If the uid level is low, add only enough of the proper
uid to bring the level up to the HOT area for a hot
check. It doesn’t take much uid, generally less than
one pint (0.5 L).Don’t overll.
Notice:We recommend you use only uid labeled
DEXRON
®-III, because uid with that label is
made especially for your automatic transmission.
Damage caused by uid other than DEXRON
®-III is
not covered by your new vehicle warranty.
After adding uid, recheck the uid level as
described underHow to Check.
When the correct uid level is obtained, push the
dipstick back in all the way; then ip the handle
down to lock the dipstick in place.
Engine Coolant
The cooling system in your vehicle is lled 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 rst, 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 5-29.
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.
5-26

Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixtureat the surge tank, but only when the
engine is cool.
{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 replacing the pressure cap, make sure it is
hand-tight.
Coolant Surge Tank Pressure Cap
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank. SeeEngine
Compartment Overview on page 5-12for more
information on location.
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may occur.
Be sure the cap is properly and tightly secured.
Engine Overheating
You will nd a coolant temperature gage on your
vehicle’s instrument panel. SeeEngine Coolant
Temperature Gage on page 3-45. In addition, you will
nd an ENGINE COOLANT HOT, ENGINE
OVERHEATED and a REDUCED ENGINE POWER
message in the DIC on the instrument panel. See
DIC Warnings and Messages on page 3-65.
5-29

(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
midgate hinges, side storage box door hinges, tailgate
hinges, tailgate linkage, outer tailgate handle pivot points,
latch bolt, fuel door hinge, locks and folding seat
hardware. More frequent lubrication may be required
when exposed to a corrosive environment. Applying
silicone grease on weatherstrips with a clean cloth will
make them last longer, seal better and not stick or
squeak.
(g)Add uid as needed. A uid loss could indicate a
problem; repair as needed. Check vent hose at transfer
case for kinks and proper installation.
(h)Change automatic transmission uid and lter 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.(i)Drain, ush and rell cooling system. See Engine
Coolant on page 5-26for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and ller neck.
Pressure test the cooling system and pressure cap.
(j)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the uid level checked. Add uid if needed.
(k)Inspect system. Check all fuel and vapor lines and
hoses for proper hook-up, routing and condition.
Check that the purge valve works properly (if equipped).
Replace as needed.
6-9

Child Restraints (cont.)
Top Strap...................................................1-40
Top Strap Anchor Location............................1-41
Where to Put the Restraint...........................1-38
Chime Level Adjustment.................................3-117
Cigarette Lighter.............................................3-22
Cleaning
Inside of Your Vehicle.................................5-111
Outside of Your Vehicle..............................5-114
Underbody Maintenance.............................5-117
Weatherstrips............................................5-114
Cleaning Exterior Lamps/Lenses......................5-115
Cleaning Fabric/Carpet...................................5-111
Cleaning Glass Surfaces................................5-113
Cleaning Interior Plastic Components...............5-113
Cleaning Leather...........................................5-113
Cleaning the Mirror.................................2-52, 2-55
Cleaning the Top of the Instrument Panel.........5-113
Cleaning the Video Screen.............................3-112
Cleaning Vinyl..............................................5-113
Climate Control System
Automatic...................................................3-22
Climate Controls Personalization....................3-32
Dual..........................................................3-29
Outlet Adjustment........................................3-32
Compass Calibration...............................2-52, 2-54
Compass Operation.........................................2-53Compass Variance..................................2-51, 2-54
Content Theft-Deterrent....................................2-27
Control of a Vehicle.......................................... 4-6
Coolant
Engine Temperature Gage............................3-45
Heater, Engine............................................2-33
Surge Tank Pressure Cap.............................5-29
Cooling System..............................................5-33
Cruise Control................................................3-11
Cruise Control Light........................................3-51
Current and Past Model Order Forms................7-14
Customer Assistance Information
Courtesy Transportation.................................. 7-8
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................................................ 7-6
Reporting Safety Defects to General Motors....7-13
Reporting Safety Defects to the Canadian
Government............................................7-12
Reporting Safety Defects to the United States
Government............................................7-12
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-13
4

E
Easy Exit Seat...............................................2-92
Electrical System...........................................5-119
Fuses and Circuit Breakers.........................5-120
Power Windows and Other Power Options....5-120
Windshield Wiper Fuses.............................5-120
Emissions Inspection and Maintenance
Programs...................................................3-49
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-47
Check and Service Engine Soon Light............3-47
Coolant......................................................5-26
Coolant Heater............................................2-33
Coolant Temperature Gage...........................3-45
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-12
Exhaust.....................................................2-47
Fan Noise..................................................5-40
Oil .............................................................5-16
Overheating................................................5-29
Starting......................................................2-32
ENGINE COOLANT HOT.................................3-66
Engine Oil Additives........................................5-19
ENGINE OVERHEATED..................................3-66
Entry Lighting and Exit Lighting.........................3-20Environmental Concerns..................................4-21
Erasing HomeLink
®Buttons..............................2-64
Event Data Recorders (EDR)............................7-10
Extender, Safety Belt.......................................1-29
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-21
Finding a Program Type (PTY) Station
(RDS and XM™).................................3-77, 3-89
Finding a Station....................................3-75, 3-87
Finish Care..................................................5-115
Finish Damage.............................................5-117
Fixed Mast Antenna.......................................3-116
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-89
Flat Tire, Changing.........................................5-90
Fluid
Automatic Transmission................................5-23
Power Steering...........................................5-41
Windshield Washer......................................5-42
FM Stereo....................................................3-115
Fog Lamps....................................................3-18
Following Distance..........................................4-76
6

Four-Wheel Drive....................................2-38, 5-56
Front Armrest Storage Area..............................2-65
Front Axle......................................................5-57
Front Axle Locking Feature...............................2-38
Frontal Air Bags.............................................1-57
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-52
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-52
Fuel Information Button....................................3-56
FUEL LEVEL LOW.........................................3-67
Fuses
Fuses and Circuit Breakers.........................5-120
Windshield Wiper.......................................5-120G
Gage
Engine Coolant Temperature.........................3-45
Fuel..........................................................3-52
Oil Pressure...............................................3-50
Speedometer..............................................3-35
Tachometer.................................................3-35
Transmission Temperature.............................3-45
Voltmeter Gage...........................................3-41
Garage Door Opener.......................................2-61
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Gate Operator and Canadian Programming........2-64
Getting Familiar with Off-Road Driving................4-22
Glove Box.....................................................2-65
GM Mobility Program for Persons with
Disabilities.................................................... 7-6
7

T
Tachometer....................................................3-35
Tailgate.........................................................2-23
Tailgate Removal............................................2-24
Taillamps.......................................................5-65
Temperature and Compass Display....................2-50
Temperature Display........................................2-53
Testing the Alarm............................................2-28
Theft-Deterrent, Radio....................................3-114
Theft-Deterrent Systems...................................2-27
Content Theft-Deterrent................................2-27
Passlock
®...................................................2-29
Throttle, Adjustable..........................................2-33
TIGHTEN FUEL CAP......................................3-67
Tilt Wheel........................................................ 3-7
Tire Sidewall Labeling......................................5-68
Tire Size.......................................................5-72
Tire Terminology and Denitions........................5-74
Tires...................................................5-68, 5-116
Buying New Tires........................................5-83
Chains.......................................................5-88
Changing a Flat Tire....................................5-90
If a Tire Goes Flat.......................................5-89
Ination - Tire Pressure................................5-76
Inspection and Rotation................................5-81
Pressure Monitor System..............................5-77
Spare Tire................................................5-110
Uniform Tire Quality Grading.........................5-85
Wheel Alignment and Tire Balance.................5-86Tires (cont.)
Wheel Replacement.....................................5-86
When It Is Time for New Tires......................5-82
To Use the Engine Coolant Heater....................2-34
Tonneau Cover...............................................2-83
Top Drain Grates – Removal and Cleaning.........2-79
Top Strap......................................................1-40
Top Strap Anchor Location...............................1-41
Top-Box Storage.............................................2-82
Torque Lock...................................................2-45
Total Weight on Your Vehicle’s Tires..................4-74
Tow/Haul Mode...............................................2-37
Tow/Haul Mode Light.......................................3-51
Towing
Recreational Vehicle.....................................4-52
Towing a Trailer..........................................4-68
Your Vehicle...............................................4-52
Traction
Assist System (TAS)...................................... 4-9
Off Light.....................................................3-44
Stabilitrak
®System......................................4-11
TRACTION ACTIVE........................................3-70
Traction Control Operation................................4-13
TRACTION SYS LIMITED................................3-70
Trailer
Recommendations.......................................4-67
Trailer Brakes.................................................4-75
Trailer Wiring Harness.....................................4-79
TRANS HOT IDLE ENGINE.............................3-68
Transfer Case................................................5-56
16