2009 CHEVROLET TRAIL BLAZER coolant temperature

How to Add Automatic Transmission
Fluid
Refer to the Maintenance Schedule to determine what
kind of transmission uid to use. SeeRecommended
Fluids and Lubricants on page 6-12.
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 does
not take much uid, generally less than one pint (0.5 L).
Do not overll.
Notice:Use of the incorrect automatic transmission
uid may damage the vehicle, and the damages
may not be covered by the vehicle’s warranty.
Always use the automatic transmission uid listed in
Recommended Fluids and Lubricants on page 6-12.
After adding uid, recheck the uid level as described
under “How to Check Automatic Transmission Fluid”
earlier in this section.
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.
Cooling System
The cooling system allows the engine to maintain the
correct working temperature.
5.3L V8 Engine shown, 4.2L L6 and 6.0L V8 Engines
similar
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Engine Fan
5-28

What to Use
{CAUTION:
Adding only plain water to the cooling system can
be dangerous. Plain water, or some other liquid
such as alcohol, can boil before the proper coolant
mixture will. The vehicle’s coolant warning system
is set for the proper coolant mixture. With plain
water or the wrong mixture, the engine could get
too hot but you would not get the overheat
warning. The engine could catch re and you or
others could be burned. Use a 50/50 mixture of
clean, drinkable water and DEX-COOL
®coolant.Use a 50/50 mixture of clean, drinkable water and
DEX-COOL coolant. If using this mixture, nothing else
needs to be added. This mixture:
Gives freezing protection down to−34°F (−37°C),
outside temperature.
Gives boiling protection up to 265°F (129°C),
engine temperature.
Protects against rust and corrosion.
Will not damage aluminum parts.
Helps keep the proper engine temperature.
Notice:If an improper coolant mixture is used,
the engine could overheat and be badly damaged.
The repair cost would not be covered by the vehicle
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core, and
other parts.
Notice:If extra inhibitors and/or additives are used
in the vehicle’s cooling system, the vehicle could
be damaged. Use only the proper mixture of
the engine coolant listed in this manual for the
cooling system. SeeRecommended Fluids and
Lubricants on page 6-12for more information.
5-30

Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
You will nd a coolant temperature gage on the vehicle’s
instrument panel. SeeEngine Coolant Temperature
Gage on page 3-38for more information.
If the vehicle has a Driver Information Center (DIC),
the display will show an Engine Coolant Hot/Engine
Overheated message. SeeDIC Warnings and Messages
on page 3-51for more information.
You may decide not to lift the hood when this warning
appears, but instead get service help right away.
SeeRoadside Assistance Program on page 7-7.
If you do decide to lift the hood, make sure the vehicle
is parked on a level surface.
Then check to see if the engine cooling fans are
running. If the engine is overheating, both fans should
be running. If they are not, do not continue to run
the engine and have the vehicle serviced.
Notice:Engine damage from running the engine
without coolant is not covered by the warranty.
Notice:If the engine catches re because of being
driven with no coolant, your vehicle can be badly
damaged. The costly repairs would not be covered
by the vehicle warranty.
If Steam Is Coming From The Engine
Compartment
{CAUTION:
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine if you see or hear steam coming
from it. Just turn it off and get everyone away from
the vehicle until it cools down. Wait until there is no
sign of steam or coolant before you open the hood.
If you keep driving when your engine is overheated,
the liquids in it can catch re. You or others could
be badly burned. Stop your engine if it overheats,
and get out of the vehicle until the engine is cool.
5-35

Windshield Washer Fluid
What to Use
When the vehicle needs windshield washer uid, be
sure to read the manufacturer’s instructions before use.
If the vehicle will be operating in an area where the
temperature may fall below freezing, use a uid that
has sufficient protection against freezing.
Adding Washer Fluid
Open the cap with the
washer symbol on it.
Add washer uid until the
tank is full. SeeEngine
Compartment Overview
on page 5-12for reservoir
location.Notice:
When using concentrated washer uid, follow
the manufacturer’s instructions for adding water.
Do not mix water with ready-to-use washer uid.
Water can cause the solution to freeze and
damage your washer uid tank and other parts
of the washer system. Also, water does not clean
as well as washer uid.
Fill the washer uid tank only three-quarters
full when it is very cold. This allows for uid
expansion if freezing occurs, which could
damage the tank if it is completely full.
Do not use engine coolant (antifreeze) in your
windshield washer. It can damage the vehicle’s
windshield washer system and paint.
5-38

(e)Make sure the safety belt reminder light and safety
belt assemblies are working properly. Look for any other
loose or damaged safety belt system parts. If you see
anything that might keep a safety belt system from doing
its job, have it repaired. Have any torn or frayed safety
belts replaced. Also see Checking the Restraint Systems
on page 1-70.
(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
rear compartment hinges, outer liftgate handle pivot
points, rear door detent link, roller mechanism, liftgate
handle pivot points, latch bolt, fuel door hinge, cargo 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)Inspect hoses for cracks, chafing, leaks, kinks, and
proper installation.
(h)Change automatic transmission 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.(i)Drain, flush, and refill cooling system. This service can
be complex; you should have your dealer/retailer perform
this service. See Engine Coolant on page 5-29 for what to
use. Inspect hoses. Clean radiator, condenser, pressure
cap, and filler neck. Pressure test the cooling system and
pressure cap.
(j)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the fluid level checked. Add fluid if needed.
(k)If driving regularly under dusty conditions, inspect
the filter at each engine oil change.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure vehicle safety,
dependability, and emission control performance. Your
dealer/retailer can assist with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to the
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
6-8

Charging System Light....................................3-34
Check
Engine Lamp..............................................3-39
Gages Warning Light...................................3-45
Check Gas Cap Light......................................3-47
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-116
Child Restraints
Child Restraint Systems...............................1-39
Infants and Young Children...........................1-35
Lower Anchors and Tethers for Children..........1-43
Older Children.............................................1-32
Securing a Child Restraint in a
Rear Outside Seat Position........................1-49
Securing a Child Restraint in the
Center Rear Seat Position.........................1-51
Securing a Child Restraint in the
Right Front Seat Position..........................1-52
Where to Put the Restraint...........................1-42
Chime Level Adjustment.................................3-111
Cigarette Lighter.............................................3-19
Cleaning
Aluminum Wheels......................................5-115
Exterior Lamps/Lenses................................5-113
Fabric/Carpet............................................5-111
Finish Care...............................................5-114
Instrument Panel, Vinyl, and Other
Plastic Surfaces.....................................5-112
Interior.....................................................5-109Cleaning (cont.)
Leather....................................................5-111
Tires........................................................5-115
Underbody Maintenance.............................5-116
Washing Your Vehicle.................................5-113
Weatherstrips............................................5-112
Windshield, Backglass, and Wiper Blades......5-114
Climate Control System
Dual ..........................................................3-20
Dual Automatic............................................3-22
Outlet Adjustment........................................3-26
Rear ..........................................................3-27
Clock, Setting.................................................3-63
Collision Damage Repair..................................7-12
Compass.......................................................2-42
Competitive Driving.........................................4-14
Compressor Kit
Storing.......................................................5-92
Compressor Kit, Tire Sealant............................5-83
Content Theft-Deterrent....................................2-17
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-56
Coolant
Engine.......................................................5-29
Engine Temperature Gage............................3-38
Cooling System..............................................5-28
Cruise Control................................................3-10
Cruise Control Light........................................3-44
3

E
EDR .............................................................7-17
Electrical System
Add-On Equipment.....................................5-118
Engine Compartment Fuse Block.................5-119
Fuses and Circuit Breakers.........................5-119
Headlamps...............................................5-118
Power Windows and Other Power Options....5-118
Rear Underseat Fuse Block.........................5-122
Windshield Wiper Fuses.............................5-118
Electronic Immobilizer
PASS-Key
®III+...........................................2-19
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-19
Electronically Controlled Air Suspension System . . . 4-47
Engine
Air Cleaner/Filter.........................................5-24
Change Engine Oil Light...............................3-43
Check and Service Engine Soon Lamp...........3-39
Coolant......................................................5-29
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-38
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-38
Fan Noise..................................................5-36
Oil .............................................................5-18
Oil Life System...........................................5-22Engine (cont.)
Overheating................................................5-35
Reduced Power Light...................................3-44
Starting......................................................2-23
Entry Lighting.................................................3-17
Event Data Recorders.....................................7-18
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-32
F
Filter
Engine Air Cleaner......................................5-24
Finish Damage.............................................5-116
Fixed Mast Antenna.......................................3-111
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-82
Flat Tire, Changing.........................................5-93
Flat Tire, Storing...........................................5-106
Fluid
Automatic Transmission................................5-25
Power Steering...........................................5-37
Windshield Washer......................................5-38
Fog Lamp
Fog ...........................................................3-16
Four-Wheel Drive....................................2-30, 5-50
Front Axle......................................................5-51
5

Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-47
Driving for Better Economy............................. 4-2
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-46
Gasoline Octane........................................... 5-6
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-47
Fuses
Engine Compartment Fuse Block.................5-119
Fuses and Circuit Breakers.........................5-119
Rear Underseat Fuse Block.........................5-122
Windshield Wiper.......................................5-118
G
Gage
Check Gages Warning Light..........................3-45
Engine Coolant Temperature.........................3-38
Fuel..........................................................3-46
Oil Pressure...............................................3-42
Speedometer..............................................3-30
Tachometer.................................................3-30
Voltmeter Gage...........................................3-35
Garage Door Opener.......................................2-48Gasoline
Octane........................................................ 5-6
Specications............................................... 5-6
Gate Ajar Light...............................................3-46
Glove Box.....................................................2-53
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints..............................................1-10
Headlamp
Aiming .......................................................5-52
Headlamps....................................................3-13
Bulb Replacement.......................................5-52
Daytime Running Lamp................................3-14
Electrical System.......................................5-118
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-52
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Heated Seats................................................... 1-4
Heater...........................................................3-20
Engine Coolant...........................................2-25
Heater...........................................................3-22
Highbeam On Light.........................................3-45
High-Speed Operation, Tires.............................5-66
Highway Hypnosis...........................................4-28
Hill and Mountain Roads..................................4-29
6