2012 CADILLAC ESCALADE EXT engine overheat

Black plate (20,1)Cadillac Escalade EXT Owner Manual - 2012
10-20 Vehicle Care
5. Replace the pressure cap. Besure the pressure cap is
hand-tight and fully seated.
6. Verify coolant level after engine is shut off and the coolant is
cold. If necessary, repeat coolant
fill procedure Steps 1 through 6.
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
The vehicle has several indicators
to warn of engine overheating.
There is a coolant temperature
gauge on your vehicle's instrument
panel. See Engine Coolant
Temperature Gauge on page 5‑12. In addition, ENGINE OVERHEATED
STOP ENGINE, ENGINE
OVERHEATED IDLE ENGINE, and
a ENGINE POWER IS REDUCED
message comes on in the Driver
Information Center (DIC) on the
instrument panel. See
Engine
Cooling System Messages on
page 5‑29 andEngine Power
Messages on page 5‑31.
If the decision is made not to lift the
hood when this warning appears,
but instead get service help right
away. See Roadside Service (U.S.
and Canada) on page 13‑7 or
Roadside Service (Mexico) on
page 13‑9.
If the decision is made 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
vehicle warranty. See Overheated
Engine Protection Operating
Mode on page 10‑22 for
information on driving to a safe
place in an emergency.
Notice: If the engine catches fire
while driving with no coolant, the
vehicle can be badly damaged.
The costly repairs would not be
covered by the vehicle warranty.
See Overheated Engine
Protection Operating Mode on
page 10‑22 for information on
driving to a safe place in an
emergency.

Black plate (21,1)Cadillac Escalade EXT Owner Manual - 2012
Vehicle Care 10-21
If Steam Is Coming from the
Engine Compartment
{WARNING
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. 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 the
vehicles engine is overheated,
the liquids in it can catch fire. You
or others could be badly burned.
Stop the engine if it overheats,
and get out of the vehicle until the
engine is cool.(Continued)
WARNING (Continued)
SeeOverheated Engine
Protection Operating Mode on
page 10‑22 for information on
driving to a safe place in an
emergency.
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 there is 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 the vehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.
.Idles for long periods in traffic.
.Tows a trailer. See Trailer
Towing on page 9‑61.
If the ENGINE OVERHEATED
STOP ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message appears 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.

Black plate (22,1)Cadillac Escalade EXT Owner Manual - 2012
10-22 Vehicle Care
If the temperature overheat gauge
is no longer in the overheat zone or
an overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle distance from the vehicle in
front. 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 five 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.Overheated Engine
Protection
Operating Mode
If an overheated engine condition
exists and the ENGINE POWER IS
REDUCED message is displayed,
an overheat protection mode which
alternates firing groups of cylinders
helps prevent engine damage. In
this mode, a loss in power and
engine performance will be noticed.
This operating mode allows the
vehicle to be driven to a safe place
in an emergency. Driving extended
distances 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. See
Engine Oil on page 10‑8.
Engine Fan
The vehicle has electric cooling
fans. The fans spinning at low
speed during most everyday driving
might be heard. The fans can turn
off if no cooling is required. Under
heavy vehicle loading, trailer towing,
and/or high outside temperatures,
or if operating the air conditioning
system, the fans can change to high
speed and an increase in fan noise
might be heard. This is normal and
indicates that the cooling system is
functioning properly. The fans
change to low speed when
additional cooling is no longer
required.

Black plate (36,1)Cadillac Escalade EXT Owner Manual - 2012
10-36 Vehicle Care
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses, circuit
breakers, and fusible thermal links.
This greatly reduces the chance of
fires caused by electrical problems.
Look at the silver-colored band
inside the fuse. If the band is broken
or melted, replace the fuse. Be sure
you replace a bad fuse with a new
one of the identical size and rating.
Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
you can.
Engine Compartment
Fuse Block
The Engine Compartment Fuse
Block is located in the engine
compartment, on the driver side of
the vehicle. Lift the cover for access
to the fuse/relay block.
Notice:Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.
To remove fuses, hold the end of
the fuse between your thumb and
index finger and pull straight out.

Black plate (4,1)Cadillac Escalade EXT Owner Manual - 2012
i-4 INDEX
Driving (cont'd)Vehicle Load Limits . . . . . . . . . . . 9-16
Wet Roads . . . . . . . . . . . . . . . . . . . 9-11
Winter . . . . . . . . . . . . . . . . . . . . . . . . 9-13
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 8-1
DVD Rear Seat EntertainmentSystem . . . . . . . . . . . . . . . . . . . . . . 7-31
DVD/CD Player . . . . . . . . . . . . . . . . 7-18
E
E85 Fuel . . . . . . . . . . . . . . . . . . . . . . . 9-53
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . . . 9-67
Electrical System
Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-36
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-36
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-41
Overload . . . . . . . . . . . . . . . . . . . 10-35
Emergency, OnStar
®. . . . . . . . . . 14-2 Engine
Air Cleaner/Filter . . . . . . . . . . . 10-14
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 5-15
Compartment Overview . . . . . . . 10-6
Coolant . . . . . . . . . . . . . . . . . . . . . 10-16
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-12
Cooling System . . . . . . . . . . . . . 10-16
Cooling System Messages . . . 5-29
Drive Belt Routing . . . . . . . . . . . . 12-3
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-30
Fan . . . . . . . . . . . . . . . . . . . . . . . . . 10-22
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-27
Overheated Protection Operating Mode . . . . . . . . . . . 10-22
Overheating . . . . . . . . . . . . . . . . 10-20
Power Messages . . . . . . . . . . . . . 5-31
Pressure Light . . . . . . . . . . . . . . . . 5-21
Running While Parked . . . . . . . . 9-31
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-25
Engine Oil Life System . . . . . . . . . . . . . . . . . 10-10
Messages . . . . . . . . . . . . . . . . . . . . 5-30
Entry/Exit Lighting . . . . . . . . . . . . . 6-10
Equipment, Towing . . . . . . . . . . . . 9-64 Event Data Recorders . . . . . . . . 13-19
Extender, Safety Belt . . . . . . . . . . 3-17
Exterior Cargo Lamps . . . . . . . . . . 6-8
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . 6-5
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . 10-22
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Filter, Engine Air Cleaner . . . . . . . . . 10-14
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-5
Flashers, Hazard Warning . . . . . . 6-7
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-62 Changing . . . . . . . . . . . . . . . . . . . 10-64
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-88
Fluid
Automatic Transmission . . . . .10-11
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-25
Power Steering . . . . . . . . . . . . . 10-23
Washer . . . . . . . . . . . . . . . . . . . . . 10-23
Fog Lamps Bulb Replacement . . . . . . . . . . . . . 6-8
Front Axle . . . . . . . . . . . . . . . . . . . . 10-28

Black plate (8,1)Cadillac Escalade EXT Owner Manual - 2012
i-8 INDEX
N
NavigationDestination . . . . . . . . . . . . . . . . . . . 7-50
Symbols . . . . . . . . . . . . . . . . . . . . . . 7-45
Using the System . . . . . . . . . . . . . 7-42
Vehicle Data Recordingand Privacy . . . . . . . . . . . . . . . 13-20
Navigation, OnStar
®. . . . . . . . . . . 14-2
New Vehicle Break-In . . . . . . . . . . 9-23
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . 5-32
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-11 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 9-6 Driving . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
Recovery . . . . . . . . . . . . . . . . . . . . . . 9-5
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-8
Engine Oil Life System . . . . . 10-10
Messages . . . . . . . . . . . . . . . . . . . . 5-30
Pressure Light . . . . . . . . . . . . . . . . 5-21
Older Children, Restraints . . . . . 3-33
Online Owner Center . . . . . . . . . . 13-6 OnStar
®
Additional Information . . . . . . . . 14-5
Connections . . . . . . . . . . . . . . . . . . 14-4
Diagnostics . . . . . . . . . . . . . . . . . . . 14-5
Emergency . . . . . . . . . . . . . . . . . . . 14-2
Navigation . . . . . . . . . . . . . . . . . . . . 14-2
Overview . . . . . . . . . . . . . . . . . . . . . 14-1
Security . . . . . . . . . . . . . . . . . . . . . . 14-2
OnStar
®System . . . . . . . . . . . . . . . 1-21
Ordering Service Publications . . . . . . . . 13-17
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Overheated Engine Protection
Operating Mode . . . . . . . . . . . . . 10-22
Overheating, Engine . . . . . . . . . . 10-20
Overview, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Overview, OnStar
®. . . . . . . . . . . . 14-1
P
Park Shifting into . . . . . . . . . . . . . . . . . . . 9-28
Shifting out of . . . . . . . . . . . . . . . . . 9-29
Park Tilt Mirrors . . . . . . . . . . . . . . . . 2-21 Parking
Assist, Ultrasonic . . . . . . . . . . . . . 9-45
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-37
Brake and P (Park)
Mechanism Check . . . . . . . . 10-30
Over Things That Burn . . . . . . . 9-29
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . 5-14
Passenger Sensing System . . . 3-26
Perchlorate Materials Requirements, California . . . . . 10-2
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-36
Phone Bluetooth . . . . . . . . . . . . . . . . . . . . . 7-81
Power
Door Locks . . . . . . . . . . . . . . . . . . . . 2-7
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Outlets . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Protection, Battery . . . . . . . . . . . . 6-10
Retained Accessory (RAP) . . . 9-27
Seat Adjustment . . . . . . . . . . . . . . . 3-3
Steering Fluid . . . . . . . . . . . . . . . 10-23
Windows . . . . . . . . . . . . . . . . . . . . . 2-22
Power Assist Steps . . . . . . . . . . . . 2-15