2006 CADILLAC ESCALADE ESV heater

If you get the ENGINE COOLANT HOT message with
no sign of steam, try this for a minute or so:
1. If your air conditioner is on, turn it off.
2. Turn on your heater to full hot at the highest fan
speed and open the windows as necessary.
3. If you are in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving — DRIVE (D).
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about 10 minutes.
If the warning does not come back on, you can drive
normally.
If the warning continues, pull over, stop, park, and fast
idle your vehicle right away.
If there is still no sign of steam and your vehicle is
equipped with an engine-driven cooling fan, push down
the accelerator until the engine speed is about twice
as fast as normal idle speed for at least three minutes
while you are parked.
If there is still no sign of steam and your vehicle is
equipped with an electric engine cooling fan, idle the
engine for three minutes while you are parked.If you still have the warning, turn off the engine and get
everyone out of the vehicle until it cools down. Also,
see “Overheated Engine Protection Operating Mode”
later in this section.
You may decide not to lift the hood but to get service
help right away.
Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
REDUCED ENGINE POWER message is displayed,
an overheat protection mode which alternates ring
groups of cylinders helps prevent engine damage.
In this mode, you will notice a loss in power and
engine performance. This operating mode allows your
vehicle to be driven to a safe place in an emergency.
Driving extended miles (km) and/or towing a trailer
in the overheat protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil
and reset the oil life system. SeeEngine Oil
on page 5-11.
5-26

The coolant level should
be at or above the FULL
COLD mark. If it is not, 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.If your vehicle is equipped with an electric engine
cooling fan, check the coolant temperature gage. If the
coolant temperature is approximately 232°F (111°C),
the electric cooling fan should be running. If it is
not, your vehicle needs service. Turn off the engine.
If your vehicle is equipped with an engine-driven cooling
fan, start the engine again and see if the fan speed
increases when idle speed is doubled by pushing the
accelerator pedal down. If it does not, your vehicle
needs service. Turn off the engine.
Notice:Engine damage from running your engine
without coolant is not covered by your warranty. See
Overheated Engine Protection Operating Mode on
page 5-26for 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.
5-28

How to Add Coolant to the Coolant
Surge Tank
If you have not found a problem yet, check to see if
coolant is visible in the surge tank. If coolant is visible
but the coolant level is not at or above the FULL COLD
mark, add a 50/50 mixture of clean, drinkable water
and DEX-COOL
®coolant at the coolant surge tank,
but be sure the cooling system, including the coolant
surge tank pressure cap, is cool before you do it.
SeeEngine Coolant on page 5-21for more information.
If no coolant is visible in the surge tank, add coolant
as follows:
{CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if you turn the radiator
pressure cap — even a little — they can come
out at high speed. Never turn the cap when the
cooling system, including the radiator pressure
cap, is hot. Wait for the cooling system and
radiator pressure cap to cool if you ever have
to turn the pressure cap.
{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.
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.
5-29

Comfort Guides, Rear Safety Belt.....................1-46
Content Theft-Deterrent....................................2-14
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-44
Coolant
Engine Temperature Gage............................3-42
Heater, Engine............................................2-19
Surge Tank Pressure Cap.............................5-24
Cooled Seats...........................................1-5, 1-11
Cooling System..............................................5-27
Cruise Control................................................3-12
Cruise Control Light........................................3-48
Cupholder(s)..................................................2-42
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 Reimbursement Program............... 7-5
Reporting Safety Defects to General Motors....7-15
Reporting Safety Defects to the
Canadian Government..............................7-14
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Service.......................................... 7-6
Service Publications Ordering Information........7-15D
Daytime Running Lamps..................................3-16
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-9
Diversity Antenna System...............................3-106
Doing Your Own Service Work........................... 5-4
Dome Lamps .................................................3-19
Door
Delayed Locking........................................... 2-9
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-10
Driver
Position, Safety Belt.....................................1-35
Driver Information Center (DIC).........................3-50
DIC Operation and Displays..........................3-50
DIC Vehicle Customization............................3-63
DIC Warnings and Messages........................3-54
Driving
At Night.....................................................4-32
City ...........................................................4-36
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-37
Hill and Mountain Roads..............................4-39
In Rain and on Wet Roads...........................4-33
4

Driving (cont.)
Off-Road ....................................................4-18
Recovery Hooks..........................................4-46
Rocking Your Vehicle to Get it Out.................4-46
Winter........................................................4-41
Dual Automatic Climate Control System.............3-24
DVD
Rear Seat Entertainment System...................3-86
E
Electrical System
Add-On Equipment.....................................5-106
Center Instrument Panel Fuse Block.............5-110
Fuses and Circuit Breakers.........................5-107
Instrument Panel Fuse Block.......................5-108
Power Windows and Other Power Options....5-107
Underhood Fuse Block...............................5-111
Windshield Wiper Fuses.............................5-107
Engine
Air Cleaner/Filter.........................................5-16
Battery.......................................................5-37
Check and Service Engine Soon Light............3-44
Coolant......................................................5-21
Coolant Heater............................................2-19
Coolant Temperature Gage...........................3-42
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-10
Exhaust.....................................................2-26Engine (cont.)
Fan Noise..................................................5-31
Oil .............................................................5-11
Oil Life System...........................................5-14
Overheated Protection Operating Mode...........5-26
Overheating................................................5-24
Starting......................................................2-18
Entry/Exit Lighting...........................................3-19
Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-48
Exterior Lamps...............................................3-15
F
Filter
Engine Air Cleaner......................................5-16
Finish Damage.............................................5-103
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-78
Flat Tire, Changing.........................................5-78
Flat Tire, Storing.............................................5-92
Fluid
Automatic Transmission................................5-19
Power Steering...........................................5-32
Windshield Washer......................................5-33
Fog Lamps ....................................................3-18
Front Axle......................................................5-45
5

Fuel............................................................... 5-4
Additives...................................................... 5-5
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-8
Filling Your Tank........................................... 5-6
Fuels in Foreign Countries.............................. 5-6
Gage .........................................................3-49
Gasoline Octane........................................... 5-4
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-49
Fuses
Center Instrument Panel Fuse Block.............5-110
Fuses and Circuit Breakers.........................5-107
Instrument Panel Fuse Block.......................5-108
Underhood Fuse Block...............................5-111
Windshield Wiper.......................................5-107
G
Gage
Engine Coolant Temperature.........................3-42
Fuel..........................................................3-49
Oil Pressure...............................................3-46
Speedometer..............................................3-34
Tachometer.................................................3-34
Transmission Temperature.............................3-42
Voltmeter Gage...........................................3-38
Garage Door Opener.......................................2-38Gasoline
Octane........................................................ 5-4
Specications............................................... 5-5
Glove Box.....................................................2-42
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamp
Aiming .......................................................5-46
Horizontal Aiming.........................................5-47
Vertical Aiming............................................5-48
Headlamps....................................................5-50
Automatic Headlamp System.........................3-17
Bulb Replacement.......................................5-49
Daytime Running Lamps...............................3-16
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-54
Halogen Bulbs............................................5-50
High Intensity Discharge (HID) Lighting...........5-49
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Heated Seats....................................1-4, 1-5, 1-11
Heater...........................................................3-24
6