ECU CADILLAC ESCALADE 2018 Service Manual

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
INSTRUMENTS AND CONTROLS 151
HUD Troubleshooting
Check that:
.Nothing is covering the HUD lens.
. HUD brightness setting is not too
dim or too bright.
. HUD is adjusted to the proper
height.
. Polarized sunglasses are not worn.
. Windshield and HUD lens are
clean.
If the HUD image is not correct,
contact your dealer.
The windshield is part of the HUD
system. See Windshield Replacement
0 285.
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed to
correct a condition. Multiple messages
may appear one after another.
The messages that do not require
immediate action can be
acknowledged and cleared by pressing
SEL. The messages that require
immediate action cannot be cleared
until that action is performed.
All messages should be taken
seriously; clearing the message does
not correct the problem.
If a SERVICE message appears, see
your dealer.
Follow the instructions given in the
messages. The system displays
messages regarding the following
topics:
.
Service Messages
. Fluid Levels
. Vehicle Security
. Brakes .
Ride Control Systems
. Driver Assistance Systems
. Cruise Control
. Lighting and Bulb Replacement
. Wiper/Washer Systems
. Doors and Windows
. Seat Belts
. Airbag Systems
. Engine and Transmission
. Tire Pressure
. Battery
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the
vehicle's propulsion power is reduced.
Reduced propulsion power can affect
the vehicle's ability to accelerate.
If this message is on, but there is no
observed reduction in performance,
proceed to your destination. The
performance may be reduced the next
time the vehicle is driven. The vehicle
may be driven while this message is

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
160 INSTRUMENTS AND CONTROLS
Restore Vehicle Settings
This allows selection of restoring
vehicle settings.
Select Restore or Cancel.
Clear All Private Data
This allows selection to clear all
private information from the vehicle.
Select Delete or Cancel.
Restore Radio Settings
This allows selection to restore radio
settings.
Select Restore or Cancel.
Software Information
Select to view the infotainment
system current software information.
Wi-Fi
Select and the following may display:
.Wi-Fi
. Manage Wi-Fi Networks
Wi-Fi
This feature allows Wi-Fi networks to
be turned off or on.
Select Off or On.
Manage Wi-Fi Networks
Select to manage Wi-Fi networks.
Wi-Fi must be on for this feature to be
accessed.
Universal Remote
System
See Radio Frequency Statement 0372.
Universal Remote System
Programming
If equipped, these buttons are in the
overhead console.
This system can replace up to three
remote control transmitters used to
activate devices such as garage door
openers, security systems, and home
automation devices. These

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
CLIMATE CONTROLS 181
4. Release the two tabs holding theservice door. Open the service
door and remove the old filter.
5. Install the new air filter.
6. Close the service door and secure the tabs.
7. Reverse the steps to reinstall the glove box.
See your dealer if additional
assistance is needed.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
DRIVING AND OPERATING 187
.Know the local laws that apply to
off-road driving.
To gain more ground clearance if
needed, it may be necessary to remove
the front fascia lower air dam,
if equipped. However, driving without
the air dam reduces fuel economy.
Caution
Operating the vehicle for extended
periods without the front fascia
lower air dam installed can cause
improper airf low to the engine.
Reattach the front fascia air dam
after off-road driving.
Loading the Vehicle for Off-Road
Driving
{Warning
. Unsecured cargo on the load
floor can be tossed about
when driving over rough
terrain. You or your
(Continued)
Warning (Continued)
passengers can be struck by
flying objects. Secure the
cargo properly.
. Keep cargo in the cargo area
as far forward and as low as
possible. The heaviest things
should be on the floor,
forward of the rear axle.
. Heavy loads on the roof raise
the vehicle's center of gravity,
making it more likely to roll
over. You can be seriously or
fatally injured if the vehicle
rolls over. Put heavy loads
inside the cargo area, not on
the roof.
For more information about loading
the vehicle, see Vehicle Load Limits
0 193 and Tires 0299.
Environmental Concerns
.
Always use established trails,
roads, and areas that have been
set aside for public off-road
recreational driving and obey all
posted regulations.
. Do not damage shrubs, flowers,
trees, or grasses or disturb wildlife.
. Do not park over things that burn.
See Parking over Things That Burn
0 205.
Driving on Hills
Driving safely on hills requires good
judgment and an understanding of
what the vehicle can and cannot do.
{Warning
Many hills are simply too steep for
any vehicle. Driving up hills can
cause the vehicle to stall. Driving
down hills can cause loss of control.
Driving across hills can cause a
rollover. You could be injured or
killed. Do not drive on steep hills.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
DRIVING AND OPERATING 197
{Warning
Things you put inside the
vehicle can strike and injure
people in a sudden stop or turn,
or in a crash.
.Put things in the cargo
area of the vehicle. Try to
spread the weight evenly.
.Never stack heavier things,
like suitcases, inside the
vehicle so that some of
them are above the tops of
the seats.
.Do not leave an unsecured
child restraint in the
vehicle.
.When you carry something
inside the vehicle, secure it
whenever you can.
.Do not leave a seat folded
down unless you need to. There is also important loading
information for off-road driving in
this manual. See
“Loading the
Vehicle for Off-Road Driving”
under Off-Road Driving 0186.
Add-On Equipment
There may be a limit on how
many people can be inside the
vehicle when carrying removable
items. Be sure to weigh the vehicle
before buying and installing the
new equipment.
Caution
Overloading the vehicle may cause
damage. Repairs would not be
covered by the vehicle warranty. Do
not overload the vehicle.
Remember not to exceed the
Gross Axle Weight Rating (GAWR)
of the front or rear axle. Automatic Level Control
See
Automatic Level Control 0222.
If a weight-distributing hitch is
being used, it is recommended to
allow the shocks to inflate,
thereby leveling the vehicle prior
to adjusting the height. See
“Hitches” underTowing Equipment
0 258
.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
202 DRIVING AND OPERATING
To Use the Engine Heater
1. Turn off the engine.
2. Open the hood and unwrap theelectrical cord. The cord is by the
left front fender, next to the
engine compartment fuse block.
Check the heater cord for
damage. If it is damaged, do not
use it. See your dealer for a
replacement. Inspect the cord for
damage yearly.
3. Plug the cord into a normal, grounded 110-volt AC outlet.
{Warning
Improper use of the heater cord or
an extension cord can damage the
cord and may result in overheating
and fire.
. Plug the cord into a
three-prong electrical utility
receptacle that is protected by
a ground fault detection
(Continued)
Warning (Continued)
function. An ungrounded
outlet could cause an electric
shock.
. Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension cord
in good operating condition,
or using a damaged heater or
extension cord, could make it
overheat and cause a fire,
property damage, electric
shock, and injury.
. Do not operate the vehicle
with the heater cord
permanently attached to the
(Continued)
Warning (Continued)
vehicle. Possible heater cord
and thermostat damage could
occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
. Before starting the vehicle,
unplug the cord, reattach the
cover to the plug, and
securely fasten the cord. Keep
the cord away from any
moving parts.
4. Before starting the engine, be sure to unplug and store the cord
as it was before to keep it away
from moving engine parts. If you
do not, it could be damaged.
The length of time the heater should
remain plugged in depends on several
factors. Ask a dealer in the area where
you will be parking the vehicle for the
best advice on this.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
DRIVING AND OPERATING 253
Warning (Continued)
.Also adjust the climate
control system to a setting
that brings in only outside air.
See “Climate Control Systems ”
in the Index.
For more information about carbon
monoxide, see Engine Exhaust
0 205.
Towing a trailer requires a certain
amount of experience. The
combination you are driving is longer
and not as responsive as the vehicle
itself. Get acquainted with the
handling and braking of the rig before
setting out for the open road.
The structure, tires, and brakes of the
trailer must be rated to carry the load.
Inadequate trailer equipment can
cause the combination to operate in
an unexpected or unsafe manner.
Before starting, check all trailer hitch
parts and attachments, safety chains,
electrical connectors, lamps, tires, and
mirrors. Get familiar with the handling and braking of the rig. If the
trailer has electric brakes, start the
combination moving and then apply
the trailer brake controller by hand to
be sure the brakes work.
During the trip, check occasionally to
be sure that the load is secure and the
lamps and any trailer brakes
still work.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving the vehicle without a trailer.
This can help to avoid heavy braking
and sudden turns.
Passing
More passing distance is needed when
towing a trailer. The combination will
not accelerate as quickly and is longer
so it is necessary to go much farther
beyond the passed vehicle before
returning to the lane.
Backing Up
Hold the bottom of the steering wheel
with one hand. To move the trailer to
the left, move that hand to the left. Tomove the trailer to the right, move
your hand to the right. Always back
up slowly and, if possible, have
someone guide you.
Making Turns
Caution
Making very sharp turns while
trailering could cause the trailer to
come in contact with the vehicle.
The vehicle could be damaged.
Avoid making very sharp turns
while trailering.
When turning with a trailer, make
wider turns than normal. Do this so
the trailer will not strike soft
shoulders, curbs, road signs, trees,
or other objects. Avoid jerky or sudden
maneuvers. Signal well in advance.
If the trailer turn signal bulbs burn
out, the arrows on the instrument
cluster will still flash for turns. It is
important to check occasionally to be
sure the trailer bulbs are still working.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
276 VEHICLE CARE
3. Fill the coolant surge tank withthe proper mixture to the full
cold mark.
4. With the coolant surge tank pressure cap off, start the engine
and let it run until the engine
coolant temperature gauge
indicates approximately 90 °C
(195 °F).
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
mixture to the coolant surge
tank until the level reaches the
full cold mark.
5. Replace the pressure cap tightly.
6. Verify coolant level after the engine is shut off and the
coolant is cold. If necessary,
repeat coolant fill procedure
Steps 1-6.Caution
If the pressure cap is not tightly
installed, coolant loss and engine
damage may occur. Be sure the cap
is properly and tightly secured.
Engine Overheating
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all coolant
and can damage the system and
vehicle. Have any leaks fixed
right away.
The vehicle has several indicators to
warn of engine overheating.
There is a coolant temperature gauge
in the vehicle's instrument cluster. See
Engine Coolant Temperature Gauge
0 134.
In addition, there are ENGINE
OVERHEATED STOP ENGINE,
ENGINE OVERHEATED IDLE ENGINE, and ENGINE POWER IS REDUCED
messages in the Driver Information
Center (DIC).
If the decision is made not to lift the
hood when this warning appears, get
service help right away. See
Roadside
Service 0366.
If the decision is made to lift the
hood, make sure the vehicle is parked
on a level surface.
Check to see if the engine cooling
fan(s) are running. If the engine is
overheating, the fans should be
running. If they are not, do not
continue to run the engine, and have
the vehicle serviced.
If Steam is Coming from the
Engine Compartment
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure cap,
even a little, can cause them to
come out at high speed and you (Continued)

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
VEHICLE CARE 285
covered by the vehicle warranty.
Do not allow the wiper blade arm
to touch the windshield.
5. Reverse Steps 1–3 for wiper blade replacement.
Rear Wiper Blade Replacement
To replace the rear wiper blade:
1. With the rear wiper in the off position, open the liftglass to
access the rear wiper arm/blade.
The rear wiper blade will not
lock in a vertical position so care
should be used when pulling it
away from the vehicle.
2. Push the release lever (2) todisengage the hook and push the
wiper arm (1) out of the blade
assembly (3).
3. Push the new blade assembly securely in the wiper arm hook
until the release lever clicks into
place.
4. Return the wiper arm and blade assembly to the rest position on
the glass.
Glass Replacement
If the windshield or front side glass
must be replaced, see your dealer to
determine the correct replacement
glass.
Windshield Replacement
HUD System
The windshield is part of the HUD
system. If the windshield must be
replaced, get one that is designed for
HUD or the HUD image may look out
of focus.
Driver Assistance Systems
If the windshield needs to be replaced
and the vehicle is equipped with a
front camera sensor for the Driver
Assistance Systems, a GM
replacement windshield is
recommended. The replacement
windshield must be installed
according to GM specifications for
proper alignment. If it is not, these
systems may not work properly, they
may display messages, or they may
not work at all. See your dealer for
proper windshield replacement.
Gas Strut(s)
This vehicle is equipped with gas
strut(s) to provide assistance in lifting
and holding open the hood/trunk/
liftgate system in full open position.
{Warning
If the gas struts that hold open the
hood, trunk, and/or liftgate fail, you
or others could be seriously injured.
Take the vehicle to your dealer for
(Continued)

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349344) - 2018 - crc - 11/7/17
320 VEHICLE CARE
When the vehicle has a flat tire (2),
use the following example as a guide
to assist in the placement of the
wheel blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains
how to use the jack and change a tire.
Tire Changing
Before changing a flat tire, see
“Hands-Free Operation”under Liftgate
0 41.
Removing the Spare Tire and
Tools
The equipment needed to change a
flat tire is stored in the rear of the
vehicle, on the driver side, behind a
door in the trim panel.
1. Jack Knob
2. Wing Nut Retaining the
Wheel Blocks
3. Wing Nut Retaining the Tool Bag
If equipped, the tow eye bolt
will be in a bag secured to
the tool bag.
1. Pull to open the trim panel door.
The third row driver side seat
may need to be folded to access
the trim panel door.
2. Lift the acoustic pad to access the jack and tools.
3. Turn the wing nut retaining the tool bag (3) counterclockwise to
remove it.
Pull the tool bag toward the front
of the vehicle and lift the rear
portion of the bag upward to
remove it.