GMC 2011 Sierra Denali Owner's Manual page 338

9-86 Driving and Operating
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. See Instrument Panel on
page 1 2. The control panel allows
adjustment to the amount of output,
referred to as trailer gain, available
to the electric trailer brakes and
allows manual application of 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 on 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.
The Trailer Brake Display Page can
be displayed by performing any of
the following actions:
Scrolling through the DIC menu
pages using the odometer trip
stem or the DIC Vehicle
Information button (if equipped).
Pressing a Trailer Gain button; if
the Trailer Brake Display Page is
not currently displayed, pressing
a Trailer Gain button will first
recall the current Trailer Gain
setting. After the Trailer Brake
Display Page is displayed, each
press and release of the gain
buttons will then cause the
Trailer Gain setting to change.
Activating the Manual Trailer
Brake Apply lever.
Connecting a trailer equipped
with electric trailer brakes.