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.
See also:
Roadside Assistance Program
U.S.: 1-888-881-3302
TTY Users (U.S.): 1-888-889-2438
Canada: 1-800-268-6800
Mexico: 01-800-466-0801
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program.
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Setting the Tone (Bass/Midrange/Treble) (All Except AM-FM Radio and Radio
with CD)
BASS/MID/TREB (Bass, Midrange, or Treble): To adjust the bass, midrange, or treble:
1. Press the knob until the tone control tabs display.
2. Highlight the desired tone control tab by doing one of ...
Voice Recognition
The voice recognition system uses commands to control the system and dial phone
numbers.
Noise: The system may not recognize voice commands if there is too much background
noise.
When to Speak: ...