wiring CADILLAC ESCALADE 2021 Owner's Manual

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
SEATS AND RESTRAINTS 75
massagers can affect how well the
passenger sensing system operates.
We recommend that you not use seat
covers or other aftermarket equipment
except when approved by GM for your
specific vehicle. SeeAdding Equipment
to the Airbag-Equipped Vehicle 075 for
more information about modifications
that can affect how the system
operates.
The ON indicator may be lit if an
object, such as a briefcase, handbag,
grocery bag, laptop, or other electronic
device, is put on an unoccupied seat.
If this is not desired, remove the
object from the seat.
{Warning
Stowing articles under the
passenger seat or between the
passenger seat cushion and
seatback may interfere with the
proper operation of the passenger
sensing system.
Servicing the
Airbag-Equipped Vehicle
Airbags affect how the vehicle should
be serviced. There are parts of the
airbag system in several places around
the vehicle. Your dealer and the
service manual have information
about servicing the vehicle and the
airbag system. To purchase a service
manual, see Publication Ordering
Information 0467.
{Warning
For up to 10 seconds after the
vehicle is turned off and the battery
is disconnected, an airbag can still
inflate during improper service. You
can be injured if you are close to an
airbag when it inflates. Avoid
yellow connectors. They are
probably part of the airbag system.
Be sure to follow proper service
procedures, and make sure the
person performing work for you is
qualified to do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Adding accessories that change the
vehicle's frame, bumper system,
height, front end, or side sheet metal
may keep the airbag system from
working properly.
The operation of the airbag system
can also be affected by changing,
including improperly repairing or
replacing, any parts of the following:
.Airbag system, including airbag
modules, front or side impact
sensors, sensing and diagnostic
module, airbag wiring, or front
center console
.Front seats, including stitching,
seams or zippers
.Seat belts
.Steering wheel, instrument panel,
overhead console, ceiling trim,
or pillar garnish trim
.Inner door seals, including speakers
Your dealer and the service manual
have information about the location of
the airbag modules and sensors,

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
76 SEATS AND RESTRAINTS
sensing and diagnostic module, and
airbag wiring along with the proper
replacement procedures.
In addition, the vehicle has a
passenger sensing system for the front
outboard passenger position, which
includes sensors that are part of the
passenger's seat. The passenger
sensing system may not operate
properly if the original seat trim is
replaced with non-GM covers,
upholstery, or trim, or with GM
covers, upholstery, or trim designed
for a different vehicle. Any object,
such as an aftermarket seat heater or
a comfort enhancing pad or device,
installed under or on top of the seat
fabric, could also interfere with the
operation of the passenger sensing
system. This could either prevent
proper deployment of the passenger
airbag(s) or prevent the passenger
sensing system from properly turning
off the passenger airbag(s). See
Passenger Sensing System071.
If the vehicle has rollover roof-rail
airbags, see Different Size Tires and
Wheels 0409 for additional important
information. If the vehicle must be modified
because you have a disability and you
have questions about whether the
modifications will affect the vehicle's
airbag system, or if you have
questions about whether the airbag
system will be affected if the vehicle is
modified for any other reason, call
Customer Assistance. See
Customer
Assistance Offices 0460.
Airbag System Check
The airbag system does not need
regularly scheduled maintenance or
replacement. Make sure the airbag
readiness light is working. See Airbag
Readiness Light 0120.
Caution
If an airbag covering is damaged,
opened, or broken, the airbag may
not work properly. Do not open or
break the airbag coverings. If there
are any opened or broken airbag
coverings, have the airbag covering
and/or airbag module replaced. For
the location of the airbags, see
Where Are the Airbags? 067. See
your dealer for service.
Replacing Airbag System
Parts after a Crash
{Warning
A crash can damage the airbag
systems in the vehicle. A damaged
airbag system may not properly
protect you and your passenger(s)
in a crash, resulting in serious
injury or even death. To help make
sure the airbag systems are working
properly after a crash, have them
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need to
replace airbag system parts. See your
dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly. Have
the vehicle serviced right away. See
Airbag Readiness Light 0120.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
120 INSTRUMENTS AND CONTROLS
Front Passenger Seat Belt
Reminder Light
The vehicle may have a front
passenger seat belt reminder light
near the passenger airbag status
indicator. SeePassenger Sensing
System 071.
When the vehicle is started, this light
flashes and a chime may come on to
remind passengers to fasten their
seat belt.
Then the light stays on solid until the
belt is buckled. This cycle continues
several times if the front passenger
remains or becomes unbuckled while
the vehicle is moving.
If the front passenger seat belt is
buckled, neither the chime nor the
light comes on. The front passenger seat belt reminder
light and chime may come on if an
object is put on the seat such as a
briefcase, handbag, grocery bag,
laptop, or other electronic device. To
turn off the reminder light and/or
chime, remove the object from the
seat or buckle the seat belt.
Second and Third Row
Passenger Seat Belt Reminder
Light
The vehicle may have second and
third row passenger seat belt reminder
lights.
When the vehicle is started, these
lights come on solid to remind rear
passengers to fasten their seat belt.
Then each light may stay on solid or
flash, and a chime may come on if the
rear passenger remains unbuckled,
or becomes unbuckled, when thevehicle is moving. An X indicates the
seat belt is not buckled. A check mark
indicates the seat belt is buckled.
If the all rear passenger seat belts are
buckled, neither the chime nor the
lights come on.
For information on the front seat belt
reminder lights, see "Driver Seat Belt
Reminder Light" and "Front Passenger
Seat Belt Reminder Light" listed
previously.
The rear passenger seat belt reminder
light and chime may come on if an
object is put on the seat such as a
briefcase, handbag, grocery bag,
laptop, or other electronic device. To
turn off the reminder light and/or
chime, remove the object from the
seat or buckle the seat belt.
Airbag Readiness Light
This light shows if there is an
electrical problem with the airbag
system. It is located on the center
stack, below the infotainment screen.
The system check includes the airbag
sensor(s), the passenger sensing
system, the pretensioners, the airbag
modules, the wiring, and the crash

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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DRIVING AND OPERATING 333
2. Have someone place chocks underthe trailer wheels.
3. When the wheel chocks are in place, gradually release the brake
pedal to allow the chocks to absorb
the load of the trailer.
4. Reapply the brake pedal. Then apply the parking brake and shift
into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
.Start the engine.
.Shift into a gear.
.Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Launching and Retrieving a Boat
Backing the Trailer into the Water
{Warning
.Have all passengers get out of
the vehicle before backing onto
the sloped part of the ramp.
Lower the driver and passenger
side windows before backing
onto the ramp. This will provide
a means of escape in the unlikely
event the vehicle slides into the
water.
.If the boat launch surface is
slippery, have the driver remain
in the vehicle with the brake
pedal applied while the boat is
being launched. The boat launch
can be especially slippery at low
tide when part of the ramp was
previously submerged at high
tide. Do not back onto the ramp
to launch the boat if you are not
sure the vehicle can maintain
traction.
.Do not move the vehicle if
someone is in the path of the
trailer. Some parts of the trailer
(Continued)
Warning (Continued)
might be underwater and not
visible to people who are
assisting in launching the boat.
Disconnect the wiring to the trailer
before backing the trailer into the
water to prevent damage to the
electrical circuits on the trailer.
Reconnect the wiring to the trailer
after removing the trailer from the
water. If the trailer has electric brakes
that can function when the trailer is
submerged, it might help to leave the
electrical trailer connector attached to
maintain trailer brake functionality
while on the boat ramp.
To back the trailer into the water: 1. If equipped, place the vehicle in four-wheel-drive high.
2. Slowly back down the boat ramp until the boat is floating, but no
further than necessary.
3. Press and hold the brake pedal, but do not shift into P (Park) yet.
4. Have someone place chocks under the front wheels of the vehicle.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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DRIVING AND OPERATING 343
Trailer Wiring Harness
The seven-pin trailer connector is
mounted in the bumper. This
connector can be plugged into a
seven-pin universal heavy-duty trailer
connector available through your
dealer.
Use only a round, seven-wire
connector with flat blade terminals
meeting SAE J2863 specifications for
proper electrical connectivity.
The seven-wire harness contains the
following trailer circuits:
.Yellow/Grey: Left Stop/Turn Signal
.Green/Violet: Right Stop/Turn
Signal
.Grey/Brown: Taillamps
.White: Ground
.White/Green: Back-up Lamps
.Red/Green: Battery Feed
.Dark Blue: Trailer Brake
To help charge a remote (non-vehicle)
battery, change drive mode to Tow
Haul. If the trailer is too light for Tow/
Haul Mode, turn on the headlamps to
help charge the battery.
Electric Brake Control Wiring
Provisions
These wiring provisions are included
with the vehicle as part of the trailer
wiring package. These provisions are
for an electric brake controller.
The harness should be installed by
your dealer or a qualified service
center.
Refer to the aftermarket electric trailer
brake controller owner's manual to
determine wire color coding of the
electric trailer brake controller. The
wire colors on the brake controller
may be different from the vehicle.
Trailer Lamps
Always check all trailer lamps are
working at the beginning of each trip,
and periodically on longer trips.
If equipped, the Trailering App will
monitor the RH turn/brake lamp
circuit, LH turn/brake lamp circuit,
running lamp circuit, and reverse
lamp circuits on the trailer. DIC
messages and Trailering App alerts
may be displayed if lighting circuit
issues are detected on the trailer. Pressing START LIGHT TEST in the
Trailering App automatically activates
trailer lamps. The Trailering App is
not a substitute for manually
inspecting your trailer lamps. See
Trailering App
0349.
Trailer Connection and Lamp
Messages
When a trailer is properly connected
and working, no trailer connection or
lamp messages appear on the Driver
Information Center (DIC). However; if
the vehicle detects an issue with a
trailer connection or lamp, you may
see the following DIC message(s):
.TRAILER DISCONNECTED CHECK
CONNECTION appears when a
connected trailer is disconnected.
It appears immediately when the
vehicle is on, or upon the next
start-up if the trailer was
disconnected while the vehicle was
off. Check the trailer connection as
appropriate.
.CHECK TRAILER XXX LAMP
appears when there is a detected
lamp or wiring fault on the trailer.
Check the trailer wiring and lamps.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
DRIVING AND OPERATING 345
{Warning
Connecting a trailer that has an air
brake system may result in reduced
or complete loss of trailer braking,
including increased stopping
distance or trailer instability which
could result in serious injury, death,
or property damage. Only use the
ITBC system with electric or electric
over hydraulic trailer brake systems.
Trailer Brake Control Panel
1. Manual Trailer Brake Apply Lever
2. Trailer Symbol
3. Trailer Gain Adjustment Buttons
The ITBC control panel is on the
instrument panel to the left of the
steering column. The control panel
allows adjustment to the amount of
output, referred to as Trailer Gain,
available to the trailer brakes and
allows manual application of the
trailer brakes. Use the ITBC control
panel and the DIC trailer brake display
page to adjust and display power
output to the trailer brakes.
Trailer Brake DIC Display Page
The ITBC display page indicates:
.Trailer Gain setting
.Output to the trailer brakes
.Trailer connection
.System operational status.
To display:
.Scroll through the DIC menu pages
.Press a Trailer Gain (+) or (−) button
.Activate the Manual Trailer Brake
Apply Lever
TRAILER GAIN:
Press a Trailer Gain button to recall
the current Trailer Gain setting. Each
press and release of the gain buttons
will then change the Trailer Gain setting. Press the Trailer Gain (+) or
(−) to adjust. Press and hold to
continuously adjust the Trailer Gain.
To turn the output to the trailer off,
adjust the Trailer Gain setting to 0.0.
This setting can be adjusted from 0.0
to 10.0 with a trailer connected or
disconnected.
TRAILER OUTPUT: This displays
anytime a trailer with electric brakes
is connected. Output to the trailer
brakes is based on the amount of
vehicle braking present and relative to
the Trailer Gain setting. Output is
displayed from 0 to 100% for each
gain setting.
The Trailer Output will indicate
“- - - - - -”
on the Trailer Brake Display
Page whenever the following occur:
.No trailer is connected.
.A trailer without electric brakes is
connected, no DIC message will
display
.A trailer with electric brakes has
become disconnected, a CHECK
TRAILER WIRING message displays
on the DIC

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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346 DRIVING AND OPERATING
.There is a fault present in the
wiring to the trailer brakes, a
CHECK TRAILER WIRING message
displays on the DIC
.The ITBC system is not working due
to a fault, a SERVICE TRAILER
BRAKE SYSTEM message displays
in the DIC
Manual Trailer Brake Apply Lever
Slide this lever right to apply the
trailer’s electric brakes independent of
the vehicle’s brakes. Use this lever to
adjust Trailer Gain to achieve the
proper power output to the trailer
brakes. The trailer's and the vehicle's
brake lamps will come on when either
vehicle brakes or manual trailer brakes
are applied and properly connected.
Trailer Gain Adjustment Procedure
Trailer Gain should be set for a
specific trailering condition and it
must be readjusted anytime vehicle
loading, trailer loading, or road surface
conditions change.
{Warning
Trailer brakes that are over-gained
or under-gained may not stop the
vehicle and the trailer as intended
and can result in a crash. Always
follow the instructions to set the
Trailer Gain for the proper trailer
stopping performance.
To adjust Trailer Gain for each towing
condition: 1. Drive the vehicle with the trailer attached on a level road surface
representative of the towing
condition and free of traffic at
about 32 to 40 km/h (20 to 25 mph)
and fully apply the Manual Trailer
Brake apply lever.
Note
Adjusting Trailer Gain at speeds lower
than 32 to 40 km/h (20 to 25 mph)
may result in an incorrect gain
setting. 2. Adjust the Trailer Gain, using the Trailer Gain adjustment buttons, to
just below the point of trailer wheel lock-up, indicated by trailer
wheel squeal or tire smoke when a
trailer wheel locks.
Note
Trailer wheel lock-up may not occur if
towing a heavily loaded trailer. In this
case, adjust the Trailer Gain to the
highest allowable setting for the
towing condition. 3. Readjust Trailer Gain any time vehicle loading, trailer loading,
or road surface conditions change
or if trailer wheel lock-up is
noticed at any time while towing.
Other ITBC-Related DIC Messages
TRAILER BRAKES CONNECTED: This
message will briefly display when a
trailer with electric brakes is first
connected to the vehicle. This
message will automatically turn off in
about 10 seconds. This message can
be acknowledged before it
automatically turns off.
CHECK TRAILER WIRING: This
message will display if:

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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DRIVING AND OPERATING 347
.The ITBC system first determines
connection to a trailer with electric
brakes and then the trailer harness
becomes disconnected the vehicle.
If the disconnect occurs while the
vehicle is stationary, this message
will automatically turn off in about
30 seconds. This message will also
turn off if it is acknowledged or if
the trailer harness is reconnected.
If the disconnect occurs while the
vehicle is moving, this message will
continue until the ignition is turned
off. This message will also turn off if
it is acknowledged or if the trailer
harness is reconnected.
.There is an electrical fault in the
wiring to the trailer brakes. This
message will continue as long as
there is an electrical fault in the
trailer wiring. This message will also
turn off if it is acknowledged.
To determine whether the electrical
fault is on the vehicle side or trailer
side of the trailer wiring harness
connection: 1. Disconnect the trailer wiring harness from the vehicle.
2. Turn the ignition off. 3. Wait 10 seconds, then turn the
ignition back to RUN.
4. If the CHECK TRAILER WIRING message reappears, the electrical
fault is on the vehicle side.
If the CHECK TRAILER WIRING
message only reappears when
connecting the trailer wiring
harness to the vehicle, the
electrical fault is on the trailer side.
SERVICE TRAILER BRAKE SYSTEM:
This message will display when there
is a problem with the ITBC system.
If this message continues over
multiple ignition cycles, there is a
problem with the ITBC system. Have
the vehicle serviced.
If either the CHECK TRAILER WIRING
or SERVICE TRAILER BRAKE SYSTEM
message displays while driving, the
ITBC system may not be fully
functional or may not function at all.
When traffic conditions allow,
carefully pull the vehicle over to the
side of the road and turn the ignition
off. Check the wiring connection to
the trailer and turn the ignition back on. If either of these messages
continues, either the vehicle or trailer
needs service.
A GM dealer may be able to diagnose
and repair problems with the trailer.
However, any diagnosis and repair of
the trailer is not covered under the
vehicle warranty. Contact your trailer
dealer for assistance with trailer
repairs and trailer warranty
information.
Trailer Sway Control (TSC)
Vehicles with StabiliTrak/Electronic
Stability Control (ESC) have a Trailer
Sway Control (TSC) feature. Trailer
sway is unintended side-to-side
motion of a trailer while towing. If the
vehicle is towing a trailer and the TSC
detects that sway is increasing, the
vehicle brakes are selectively applied
at each wheel, to help reduce
excessive trailer sway. If equipped with
the Integrated Trailer Brake Control
(ITBC) system, and the trailer has an
electric brake system, StabiliTrak may
also apply the trailer brakes.

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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348 DRIVING AND OPERATING
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak warning
light will flash on the instrument
cluster. Reduce vehicle speed by
gradually removing your foot from the
accelerator. If trailer sway continues,
StabiliTrak can help slow the vehicle
down. TSC will not function if
StabiliTrak is turned off. SeeTraction
Control/Electronic Stability Control
0 264.
{Warning
Trailer sway can result in a crash
and in serious injury or death, even
if the vehicle is equipped with TSC.
(Continued)
Warning (Continued)
If the trailer begins to sway, reduce
vehicle speed by gradually removing
your foot from the accelerator. Then
pull over to check the trailer and
vehicle to help correct possible
causes, including an improperly or
overloaded trailer, unrestrained
cargo, improper trailer hitch
configuration, or improperly
inflated or incorrect vehicle or
trailer tires. SeeTowing Equipment
0 338 for trailer ratings and hitch
setup recommendations.
Aftermarket Electronic Trailer
Sway Control Devices
Some trailers may come equipped
with an electronic device designed to
reduce or control trailer sway.
Aftermarket equipment manufacturers
also offer similar devices that connect
to the wiring between the trailer and
the vehicle. These devices may
interfere with the vehicle’s trailer
brake systems or other systems,
including integrated anti-sway
systems, if equipped. Messages related to trailer connections or trailer brakes
could appear on the DIC. The effects
of these aftermarket devices on
vehicle handling or trailer brake
performance is not known.
{Warning
Use of aftermarket electronic trailer
sway control devices could result in
reduced trailer brake performance,
loss of trailer brakes, or other
malfunctions, and result in a crash.
You or others could be seriously
injured or killed. Before using one
of these devices:
.Ask the device or trailer
manufacturer if the device has
been thoroughly tested for
compatibility with the make,
model, and year of your vehicle
and any optional equipment
installed on your vehicle.
.Before driving, check the trailer
brakes are working properly,
if equipped. Drive the vehicle
with the trailer attached on a
level road surface that is free of
traffic at about 32-40 km/h
(Continued)

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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VEHICLE CARE 385
Electrical System
Electrical System Overload
The vehicle has fuses to protect
against an electrical system overload.
Fuses also protect power devices in
the vehicle.
Replace a bad fuse with a new one of
the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, there are
some spare fuses and a fuse puller in
the left instrument panel fuse block.
The same amperage fuse can also be
borrowed. Choose some feature of the
vehicle that is not needed to use and
replace it as soon as possible.
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 and circuit
breakers. This greatly reduces the
chance of damage caused by electrical
problems.
{Danger
Fuses and circuit breakers are
marked with their ampere rating.
Do not exceed the
specified amperage rating when
replacing fuses and circuit breakers.
Use of an oversized fuse or circuit
breaker can result in a vehicle fire.
You and others could be seriously
injured or killed.
{Warning
Installation or use of fuses that do
not meet GM’s original fuse
specifications is dangerous. The
fuses could fail, and result in a fire.
You or others could be injured or
killed, and the vehicle could be
damaged.