2009 CADILLAC ESCALADE heater

A. Coolant Surge Tank
B. Coolant Surge Tank Pressure Cap
C. Engine Cooling Fan(s)
{CAUTION:
An electric engine cooling fan under the hood can
start up even when the engine is not running and
can cause injury. Keep hands, clothing, and tools
away from any underhood electric fan.
{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.
Notice:Using coolant other than DEX-COOL
®can
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant could
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs rst. Any repairs
would not be covered by the vehicle warranty.
Always use DEX-COOL
®(silicate-free) coolant in the
vehicle.
6-25

Engine Coolant
The cooling system in the vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in the vehicle for ve years or 150,000
miles (240 000 km), whichever occurs rst.
The following explains the cooling system and how to
check and add coolant when it is low. If there is a
problem with engine overheating, seeEngine
Overheating on page 6-30.
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 7-13for more information.
6-26

If No Steam Is Coming From The
Engine Compartment
The ENGINE OVERHEATED STOP ENGINE or the
ENGINE OVERHEATED IDLE ENGINE message, along
with a low coolant condition, can indicate a serious
problem.
If you get an engine overheat warning, but see or hear
no steam, the problem may not be too serious.
Sometimes the engine can get a little too hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer. SeeTowing a Trailer on page 5-42.
If you get the ENGINE OVERHEATED STOP ENGINE or
the ENGINE OVERHEATED IDLE ENGINE message
with no sign of steam, try this for a minute or so:
If the overheat warning is displayed with no sign of
steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and
to the highest fan speed. Open the windows as
necessary.3. In heavy traffic, let the engine idle in N (Neutral)
while stopped. If it is safe to do so, pull off the
road, shift to P (Park) or N (Neutral) and let
the engine idle.
If the temperature overheat gage is no longer in the
overheat zone or an overheat warning no longer
displays, the vehicle can be driven. Continue to drive
the vehicle slow for about 10 minutes. Keep a safe
vehicle distance from the car in front of you. If the
warning does not come back on, continue to drive
normally.
If the warning continues, pull over, stop, and park the
vehicle right away.
If there is no sign of steam, idle the engine for ve
minutes while parked. If the warning is still displayed, turn
off the engine until it cools down. Also, see “Overheated
Engine Protection Operating Mode” later in this section.
6-32

Electronic Immobilizer
PASS-Key®III+...........................................2-22
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-23
Engine
Air Cleaner/Filter.........................................6-19
Check and Service Engine Soon Lamp...........3-40
Coolant......................................................6-26
Coolant Heater............................................2-28
Coolant Temperature Gage...........................3-39
Drive Belt Routing.......................................7-16
Engine Compartment Overview......................6-14
Exhaust.....................................................2-38
Fan Noise..................................................6-33
Oil .............................................................6-16
Oil Life System...........................................6-18
Overheated Protection Operating Mode...........6-33
Overheating................................................6-30
Starting......................................................2-26
Entry Lighting.................................................3-21
Event Data Recorders.....................................8-17
Exit Lighting...................................................3-21
Extender, Safety Belt.......................................1-50
Exterior Lamps...............................................3-15
F
Features
Memory ....................................................... 1-7
Filter
Engine Air Cleaner......................................6-19
Finish Damage.............................................6-101
Flashers, Hazard Warning.................................. 3-5
Flash-to-Pass................................................... 3-8
Flat Tire........................................................6-76
Flat Tire, Changing.........................................6-76
Flat Tire, Storing.............................................6-89
Fluid
Automatic Transmission................................6-21
Power Steering...........................................6-34
Windshield Washer......................................6-35
Fog Lamp
Fog ...........................................................3-20
Fog Lamp Light..............................................3-44
Front Axle......................................................6-47
Fuel............................................................... 6-5
Additives...................................................... 6-6
California Fuel.............................................. 6-6
Driving for Better Economy............................. 5-2
E85 (85% Ethanol)........................................ 6-7
Filling a Portable Fuel Container....................6-11
Filling the Tank............................................. 6-9
5

Fuel (cont.)
Fuels in Foreign Countries.............................. 6-8
Gage .........................................................3-45
Gasoline Octane........................................... 6-5
Gasoline Specications.................................. 6-6
Fuses
Center Instrument Panel Fuse Block.............6-105
Fuses and Circuit Breakers.........................6-103
Instrument Panel Fuse Block.......................6-103
Underhood Fuse Block...............................6-106
Windshield Wiper.......................................6-103
G
Gage
Engine Coolant Temperature.........................3-39
Fuel..........................................................3-45
Speedometer..............................................3-33
Tachometer.................................................3-33
Garage Door Opener.......................................2-55
Garment Hooks..............................................2-63
Gasoline
Octane........................................................ 6-5
Specications............................................... 6-6
Getting Started
Getting Started, Navigation............................. 4-4
Global Positioning System (GPS)......................4-56
Glove Box.....................................................2-62
GM Mobility Reimbursement Program.................. 8-6
H
Hazard Warning Flashers................................... 3-5
Head Restraints............................................... 1-2
Headlamp
Aiming .......................................................6-48
Headlamps
Bulb Replacement.......................................6-50
Daytime Running Lamp................................3-19
Exterior Lamps............................................3-15
Flash-to-Pass............................................... 3-8
High Intensity Discharge (HID) Lighting...........6-51
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-18
Heated Seats............................................1-5, 1-6
Heated Steering Wheel..................................... 3-6
Heater
Engine Coolant...........................................2-28
Heater...........................................................3-24
Highbeam On Light.........................................3-45
High-Speed Operation, Tires.............................6-63
Highway Hypnosis...........................................5-26
Hill and Mountain Roads..................................5-27
Hood
Checking Things Under................................6-12
Release.....................................................6-12
Horn ............................................................... 3-5
How to Wear Safety Belts Properly...................1-33
6