GMC 2011 Sierra - Manual (Page 413)

Black plate (119,1) GMC Sierra Owner Manual - 2011
Driving and Operating 9-119
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. See Instrument Panel
(Base/Uplevel Version) on page 1‑2
or Instrument Panel (Premium
Version) on page 1‑6 for more
information. 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 5‑33 for more information.
The display page indicates Trailer
Gain setting, power output to
the electric trailer brakes, trailer
connection, and system operational
status.