GMC Yukon 2012 Owner's Manual page 359

When trailering, make sure of the
following:
The ITBC system is used only
with trailers that are equipped
with electric brakes.
All applicable local and federal
laws and regulations are
followed.
All electrical and mechanical
connections to the trailer are
made correctly.
The trailer s brakes are in proper
working condition.
The trailer and vehicle are
properly loaded for the towing
condition.
The ITBC system is a factory
installed item. Out of factory
installation of this system should not
be attempted. GM is not responsible
for warranty or performance of the
system resulting from out of factory
installation.
Trailer Brake Control Panel
A. Manual Trailer Brake
Apply Lever
B. Trailer Gain
Adjustment Buttons
The ITBC system has a control
panel located 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
Driving and Operating
to the electric trailer brakes and
allows manual application the
trailer brakes. The Trailer Brake
Control Panel is used along with the
Trailer Brake Display Page on the
DIC to adjust and display power
output to the trailer brakes.
Trailer Brake DIC Display Page
The ITBC system displays
messages into the vehicle s Driver
Information Center (DIC). See
Driver Information Center (DIC) on
page 5 30 for more information.
The display page indicates
Trailer Gain setting, power output
to the electric trailer brakes,
trailer connection and system
operational status.
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