GMC Sierra 2010 Owner's Manual page 434

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 (Base/Uplevel Version) on page 1 2
or Instrument Panel (Premium Version) on page 1 4.
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
5-66
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 DIC Warnings and
Messages on page 4 65 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
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
If the Trailer Brake