engine CADILLAC ESCALADE EXT 2010 3.G Service Manual

.Make sure to fuel the vehicle with quality fuel. Poor
fuel quality causes the engine not to run as
efficiently as designed and can cause: stalling after
start-up, stalling when the vehicle is changed into
gear, misfiring, hesitation on acceleration,
or stumbling on acceleration. These conditions
might go away once the engine is warmed up.
If one or more of these conditions occurs, change
the fuel brand used. It will require at least one full
tank of the proper fuel to turn the light off.
SeeGasoline Octane on page 7‑7.
If none of the above have made the light turn off, your
dealer/retailer can check the vehicle. The dealer/retailer
has the proper test equipment and diagnostic tools to fix
any mechanical or electrical problems that might have
developed.Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
might begin programs to inspect the emission control
equipment on the vehicle. Failure to pass this
inspection could prevent getting a vehicle registration.
Here are some things to know to help the vehicle pass
an inspection:
.The vehicle will not pass this inspection if the
check engine light is on with the engine running,
or if the key is in ON/RUN and the light is not on.
.The vehicle will not pass this inspection if the
OBD II (on-board diagnostic) system determines
that critical emission control systems have not
been completely diagnosed by the system. The
vehicle would be considered not ready for
inspection. This can happen if the battery has
recently been replaced or if the battery has run
down. The diagnostic system is designed to
evaluate critical emission control systems during
normal driving. This can take several days of
routine driving. If this has been done and the
vehicle still does not pass the inspection for lack of
OBD II system readiness, your dealer/retailer can
prepare the vehicle for inspection.
4-36

Oil Pressure Light
{WARNING:
Do not keep driving if the oil pressure is low. The
engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice: Lack of proper engine oil maintenance
can damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow the
maintenance schedule in this manual for changing
engine oil. This light comes on briefly while starting the engine.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the light comes on and stays on, it means that oil is
not flowing through the engine properly. The vehicle
could be low on oil and it might have some other
system problem.
Security Light
For information regarding
this light and the vehicle's
security system, see
Content Theft-Deterrent
on page 3‑26.
4-37

All messages will appear in the DIC display located in
the center of the instrument panel cluster.
The DIC comes on when the ignition is on. After a short
delay, the DIC will display the information that was last
displayed before the engine was turned off.
SeeDIC Operation and Displays
on page 4‑40and
DIC Vehicle Customizationon page 4‑56for the
displays available.
DIC Operation and Displays
The DIC has different displays which can be accessed
by pressing the DIC buttons located on the instrument
panel, next to the steering wheel.
The DIC displays trip, fuel, and vehicle system
information, and warning messages if a system problem
is detected. A digital speedometer also appears at the
bottom of the DIC display. The digital speedometer can
be enabled or disabled. See “DISPLAY DIGITAL
SPEED” underDIC Vehicle Customization
on
page 4‑56for more information.
DIC Buttons
The buttons are the trip/
fuel, vehicle information,
customization, and set/
reset buttons. The button
functions are detailed in
the following pages.
3(Trip/Fuel): Press this button to display
the odometer, trip odometer, fuel range, average
economy, fuel used, timer, transmission temperature,
instantaneous economy, and average vehicle speed.
The compass and outside air temperature will also be
shown in the display. The temperature will be shown in
°F or °C depending on the units selected.
T(Vehicle Information): Press this button to display
the oil life, units, tire pressure readings for vehicles with
the Tire Pressure Monitor System (TPMS), Remote
Keyless Entry (RKE) transmitter programming, compass
zone setting, and compass recalibration.
4-40

Vehicle Information Menu Items
T
(Vehicle Information):Press this button to scroll
through the following menu items:
Oil Life
Press the vehicle information button until OIL LIFE
REMAINING displays. This display shows an estimate
of the oil's remaining useful life. If you see 99% OIL
LIFE REMAINING on the display, that means 99% of
the current oil life remains. The engine oil life system
will alert you to change the oil on a schedule consistent
with your driving conditions.
When the remaining oil life is low, the CHANGE
ENGINE OIL SOON message will appear on the
display. See “CHANGE ENGINE OIL SOON” underDIC
Warnings and Messages
on page 4‑48. You should
change the oil as soon as you can. See Engine Oilon
page 7‑15. In addition to the engine oil life system
monitoring the oil life, additional maintenance is
recommended in the Maintenance Schedule in this
manual. See Scheduled Maintenance
on page 8‑3for
more information. Remember, you must reset the OIL LIFE display
yourself after each oil change. It will not reset itself.
Also, be careful not to reset the OIL LIFE display
accidentally at any time other than when the oil has just
been changed. It cannot be reset accurately until the
next oil change. To reset the engine oil life system, see
Engine Oil Life System on page 7‑18.
Units
Press the vehicle information button until UNITS
displays. This display allows you to select between
English or Metric units of measurement. Once in this
display, press the set/reset button to select between
ENGLISH or METRIC units. All of the vehicle
information will then be displayed in the unit of
measurement selected.
4-43

DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that
some action may be needed by the driver to correct the
condition. Multiple messages may appear one after
another.
Some messages may not require immediate action, but
you can press any of the DIC buttons on the instrument
panel to acknowledge that you received the messages
and to clear them from the display.
Some messages cannot be cleared from the DIC
display because they are more urgent. These
messages require action before they can be cleared.
You should take any messages that appear on the
display seriously and remember that clearing the
messages will only make the messages disappear, not
correct the problem.
The following are the possible messages that can be
displayed and some information about them.
BATTERY LOW START VEHICLE
When the vehicle’s battery is severely discharged, this
message will display and four chimes will sound. Start
the vehicle immediately. If the vehicle is not started and
the battery continues to discharge, the climate controls,
heated seats, and audio systems will shut off and the
vehicle may require a jump start. These systems will
function again after the vehicle is started.
CHANGE ENGINE OIL SOON
This message displays when the engine oil needs to
be changed. When you change the engine oil, be sure
to reset the CHANGE ENGINE OIL SOON message.
See Engine Oil Life System
on page 7‑18for
information on how to reset the message. See Engine
Oil
on page 7‑15and Scheduled Maintenanceon
page 8‑3for more information.
DRIVER DOOR OPEN
This message displays and a chime sounds if the driver
door is not fully closed and the vehicle is shifted out of
P (Park). Stop and turn off the vehicle, check the door
for obstructions, and close the door again. Check to see
if the message still appears on the DIC.
4-48

ENGINE HOT A/C (Air Conditioning)
TURNED OFF
This message displays when the engine coolant
becomes hotter than the normal operating temperature.
SeeEngine Coolant Temperature Gage
on page 4‑33.
To avoid added strain on a hot engine, the air
conditioning compressor automatically turns off.
When the coolant temperature returns to normal, the
air conditioning compressor turns back on. You can
continue to drive your vehicle.
If this message continues to appear, have the system
repaired by your dealer/retailer as soon as possible to
avoid damage to the engine.
ENGINE OIL HOT IDLE ENGINE
This message displays when the engine oil becomes
hotter than the normal operating temperature. Stop and
allow the vehicle to idle until it cools down. See Engine
Coolant Temperature Gage
on page 4‑33.
ENGINE OVERHEATED IDLE ENGINE
Notice: If you drive your vehicle while the engine is
overheating, severe engine damage may occur. If an
overheat warning appears on the instrument panel
cluster and/or DIC, stop the vehicle as soon as
possible. See Engine Overheating
on page 7‑33for
more information. This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle to
idle until it cools down. See
Engine Coolant
Temperature Gage on page 4‑33.
See Overheated Engine Protection Operating Mode
on
page 7‑35for information on driving to a safe place in
an emergency.
ENGINE OVERHEATED STOP ENGINE
Notice: If you drive your vehicle while the engine is
overheating, severe engine damage may occur. If an
overheat warning appears on the instrument panel
cluster and/or DIC, stop the vehicle as soon as
possible. See Engine Overheating
on page 7‑33for
more information.
This message displays and a chime sounds if the
engine cooling system reaches unsafe temperatures for
operation. Stop and turn off the vehicle as soon as it is
safe to do so to avoid severe damage. This message
clears when the engine has cooled to a safe operating
temperature.
4-49

ENGINE POWER IS REDUCED
This message displays and a chime sounds when the
cooling system temperature gets too hot and the engine
further enters the engine coolant protection mode. See
Engine Overheating
on page 7‑33for further
information.
This message also displays when the vehicle's engine
power is reduced. Reduced engine power can affect
the vehicle's ability to accelerate. If this message is
on, but there is no reduction in performance, proceed
to your destination. The performance may be reduced
the next time the vehicle is driven. The vehicle may be
driven at a reduced speed while this message is on, but
acceleration and speed may be reduced. Anytime this
message stays on, the vehicle should be taken to your
dealer/retailer for service as soon as possible.
FUEL LEVEL LOW
This message displays and a chime sounds if the fuel
level is low. Refuel as soon as possible. See Fuel Gage
on page 4‑39andFuelon page 7‑6for more
information.
HOOD OPEN
This message displays and a chime sounds if the hood
is not fully closed. Stop and turn off the vehicle, check
the hood for obstructions, and close the hood again.
Check to see if the message still appears on the DIC.
ICE POSSIBLE DRIVE WITH CARE
This message displays when ice conditions are
possible.
LEFT REAR DOOR OPEN
This message displays and a chime sounds if the driver
side rear door is not fully closed and the vehicle is
shifted out of P (Park). Stop and turn off the vehicle,
check the door for obstructions, and close the door
again. Check to see if the message still appears on
the DIC.
OIL PRESSURE LOW STOP ENGINE
Notice: If you drive your vehicle while the engine oil
pressure is low, severe engine damage may occur.
If a low oil pressure warning appears on the Driver
Information Center (DIC), stop the vehicle as soon
as possible. Do not drive the vehicle until the cause
of the low oil pressure is corrected. See Engine Oil
on page 7‑15for more information.
4-50

This message displays if low oil pressure levels occur.
Stop the vehicle as soon as safely possible and do not
operate it until the cause of the low oil pressure has
been corrected. Check the oil as soon as possible and
have your vehicle serviced by your dealer/retailer. See
Engine Oil on page 7‑15.
PARKING ASSIST BLOCKED SEE
OWNERS MANUAL
If your vehicle has the Ultrasonic Rear Parking Assist
(URPA) system, this message displays if there is
something interfering with the park assist system. See
Ultrasonic Rear Parking Assist (URPA)
on page 3‑48for more information.
PARKING ASSIST OFF
After the vehicle has been started, this message
displays to remind the driver that the Ultrasonic Rear
Parking Assist (URPA) system has been turned off.
Press the set/reset button to acknowledge this message
and clear it from the DIC display. To turn the URPA
system back on, seeUltrasonic Rear Parking Assist
(URPA) on page 3‑48.
PASSENGER DOOR OPEN
This message displays and a chime sounds if the front
passenger door is not fully closed and the vehicle is
shifted out of P (Park). Stop and turn off the vehicle,
check the door for obstructions, and close the door
again. Check to see if the message still appears on
the DIC.
REMOTE KEY LEARNING ACTIVE
This message displays while you are matching a
Remote Keyless Entry (RKE) transmitter to your
vehicle. See “Matching Transmitter(s) to Your Vehicle”
under Remote Keyless Entry (RKE) System Operation
on page 3‑4andDIC Operation and Displayson
page 4‑40for more information.
REPLACE BATTERY IN REMOTE KEY
This message displays if a Remote Keyless Entry
(RKE) transmitter battery is low. The battery needs to
be replaced in the transmitter. See “Battery
Replacement” underRemote Keyless Entry (RKE)
System Operation on page 3‑4.
4-51

SERVICE STABILITRAK
If your vehicle has StabiliTrak®and this message
displays, it means there may be a problem with the
StabiliTrak system. If you see this message, try to reset
the system. Stop; turn off the engine for at least
15 seconds; then start the engine again. If this message
still comes on, it means there is a problem. You should
see your dealer/retailer for service. The vehicle is safe
to drive, however, you do not have the benefit of
StabiliTrak, so reduce your speed and drive accordingly.
SERVICE SUSPENSION SYSTEM
This message displays when the Road Sensing
Suspension (RSS) system is not operating properly.
Have your vehicle serviced by your dealer/retailer.
SERVICE THEFT DETERRENT SYSTEM
This message displays when there is a problem with the
theft-deterrent system. The vehicle may or may not
restart so you may want to take the vehicle to your
dealer/retailer before turning off the engine. See
PASS-Key
®III+ Electronic Immobilizer Operationon
page 3‑28for more information.
SERVICE TIRE MONITOR SYSTEM
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays if a part on the TPMS is
not working properly. The tire pressure light also flashes
and then remains on during the same ignition cycle.
See Tire Pressure Light
on page 4‑33. Several
conditions may cause this message to appear. See Tire
Pressure Monitor Operation
on page 7‑67for more
information. If the warning comes on and stays on,
there may be a problem with the TPMS. See your
dealer/retailer.
SERVICE TRACTION CONTROL
If your vehicle has StabiliTrak, this message displays
when there is a problem with the Traction Control
System (TCS). When this message displays, the
system will not limit wheel spin. Adjust your driving
accordingly. See your dealer/retailer for service. See
StabiliTrak
®Systemon page 6‑6for more
information.
STABILITRAK OFF
If your vehicle has StabiliTrak, this message
displays when you turn off StabiliTrak, or when the
stability control has been automatically disabled.
To limit wheel spin and realize the full benefits of the
stability enhancement system, you should normally
leave StabiliTrak on.
4-53

However, you should turn StabiliTrak off if your vehicle
gets stuck in sand, mud, ice, or snow and you want to
rock your vehicle to attempt to free it, or if you are
driving in extreme off-road conditions and require more
wheel spin. SeeIf Your Vehicle is Stuck in Sand, Mud,
Ice, or Snow
on page 6‑30. To turn the StabiliTrak
system on or off, see StabiliTrak®Systemon
page 6‑6.
There are several conditions that can cause this
message to appear.
.One condition is overheating, which could occur if
StabiliTrak activates continuously for an extended
period of time.
.The message also displays if the brake system
warning light is on. See Brake System Warning
Light on page 4‑31.
.The message could display if the stability system
takes longer than usual to complete its diagnostic
checks due to driving conditions.
.The message displays if an engine or vehicle
related problem has been detected and the vehicle
needs service. See your dealer/retailer.
The message turns off as soon as the conditions that
caused the message to be displayed are no longer
present.
TIGHTEN GAS CAP
This message may display along with the check engine
light on the instrument panel cluster if the vehicle's fuel
cap is not tightened properly. See Malfunction Indicator
Lamp
on page 4‑34. Reinstall the fuel cap fully. See
Filling the Tankon page 7‑10. The diagnostic system
can determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap allows
fuel to evaporate into the atmosphere. A few driving
trips with the cap properly installed should turn this light
and message off.
TIRE LEARNING ACTIVE
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays when the TPMS is
re-learning the tire positions on your vehicle. The tire
positions must be re-learned after rotating the tires or
after replacing a tire or sensor. See Tire Inspection and
Rotation
on page 7‑70, Tire Pressure Monitor Systemon page 7‑66, and Inflation - Tire Pressureon
page 7‑64for more information.
TIRE LOW ADD AIR TO TIRE
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays when the pressure in
one or more of the vehicle's tires is low. This message
also displays LEFT FRONT, RIGHT FRONT, LEFT
REAR, or RIGHT REAR to indicate the location of the
low tire.
4-54