Page 347 of 492

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
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:
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Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
VEHICLE CARE 403
maintain correct tire pressure, even if
under-inflation has not reached the
level to trigger illumination of the
TPMS low tire pressure telltale.
Your vehicle has also been equipped
with a TPMS malfunction indicator to
indicate when the system is not
operating properly. The TPMS
malfunction indicator is combined
with the low tire pressure telltale.
When the system detects a
malfunction, the telltale will flash for
approximately one minute and then
remain continuously illuminated. This
sequence will continue upon
subsequent vehicle start-ups as long
as the malfunction exists.
When the malfunction indicator is
illuminated, the system may not be
able to detect or signal low tire
pressure as intended. TPMS
malfunctions may occur for a variety
of reasons, including the installation
of replacement or alternate tires or
wheels on the vehicle that prevent the
TPMS from functioning properly.
Always check the TPMS malfunction
telltale after replacing one or more
tires or wheels on your vehicle toensure that the replacement or
alternate tires and wheels allow the
TPMS to continue to function
properly.
See
Tire Pressure Monitor Operation
0 403.
See Radio Frequency Statement 0467.
Tire Pressure Monitor
Operation
This vehicle may have a Tire Pressure
Monitor System (TPMS). The TPMS is
designed to warn the driver when a
low tire pressure condition exists.
TPMS sensors are mounted onto each
tire and wheel assembly, excluding the
spare tire and wheel assembly. The
TPMS sensors monitor the air
pressure in the tires and transmit the
tire pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition is
detected, the TPMS illuminates the
low tire pressure warning light located
on the instrument cluster. If the
warning light comes on, stop as soon
as possible and inflate the tires to the
recommended pressure shown on the
Tire and Loading Information label.
See Vehicle Load Limits 0240.
A message to check the pressure in a
specific tire displays in the Driver
Information Center (DIC). The low tire
pressure warning light and the DIC
warning message come on at each
ignition cycle until the tires are
inflated to the correct inflation
pressure. If the vehicle has DIC
buttons, tire pressure levels can be
viewed. For additional information
and details about the DIC operation
and displays, see Driver Information
Center (DIC) 0132.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the air
pressure is getting low and needs to
be inflated to the proper pressure.
Page 472 of 492

Cadillac Escalade Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13690472) - 2021 - CRC - 8/10/21
ONSTAR 471
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . . . . . . . 471
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . . . . . . . 472
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . 472
OnStar Additional Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . . . . . 472
OnStar Overview
=Voice Command Button
QBlue OnStar Button
>Red Emergency Button
This vehicle may be equipped with a
comprehensive, in-vehicle system that
can connect to an OnStar Advisor for
Emergency, Security, Navigation,
Connections, and Diagnostics Services.
OnStar services may require a paid
service plan and data plan. OnStar
requires the vehicle battery and
electrical system, cellular service, and
GPS satellite signals to be available
and operating. OnStar acts as a link to
existing emergency service providers.
OnStar may collect information about
you and your vehicle, including
location information. See OnStar User
Terms, Privacy Statement, and
Software Terms for more details including system limitations at
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
The OnStar system status light is next
to the OnStar buttons. If the status
light is:
.Solid Green: System is ready.
.Flashing Green: On a call.
.Red: Indicates a problem.
.Off: System is off. PressQtwice to
speak with an OnStar Advisor.
Press
Qor call 1-888-4ONSTAR
(1-888-466-7827) to speak to an
Advisor.
Functionality of the Voice Command
button may vary by vehicle and
region.
Press
=to:
.Open the OnStar app on the
infotainment display. See OnStar
System 0172 for information on
how to use the OnStar app.
Or
.Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
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