Chevrolet Silverado 4500HD 2022 Owner's Manual page 246

244 Driving and Operating
Trailer Brake Control Panel
1. Manual Trailer Brake Apply Lever
2. Trailer Gain Adjustment Buttons
The ITBC control panel is on the instrument
panel to the left of the steering column. See
Instrument Panel Overview 0 4. The control
panel allows adjustment to the amount of
output, referred to as Trailer Gain, available
to the trailer brakes and allows manual
application of the trailer brakes. Use the
ITBC control panel and the DIC trailer brake
display page to adjust and display power
output to the trailer brakes.
Trailer Brake DIC Display Page
The ITBC display page indicates
Trailer Gain setting
Output to the trailer brakes
Trailer connection
System operational status
To display
Scroll through the DIC menu pages
Press a Trailer Gain (+) or (-) button
Activate the Manual Trailer Brake Apply
Lever
TRAILER GAIN:
Press a Trailer Gain button to recall the
current Trailer Gain setting. Each press and
release of the gain buttons will then change
the Trailer Gain setting. Press the Trailer
Gain (+) or (-) to adjust. Press and hold to
continuously adjust the Trailer Gain. To turn
the output to the trailer off, adjust the
Trailer Gain setting to 0.0. This setting can
be adjusted from 0.0 to 10.0 with a trailer
connected or disconnected.
TRAILER OUTPUT: This displays anytime a
trailer with electric brakes is connected.
Output to the trailer brakes is based on the
amount of vehicle braking present and
relative to the Trailer Gain setting. Output is
displayed from 0 to 100% for each gain
setting.
The Trailer Output will indicate - - - - - - on
the Trailer Brake Display Page whenever the
following occur:
No trailer is connected
A trailer without electric brakes is
connected (no DIC message will display)
A trailer with electric brakes has become
disconnected, a CHECK TRAILER WIRING
message displays on the DIC
There is a fault present in the wiring to
the trailer brakes, a CHECK TRAILER
WIRING message displays on the DIC
The ITBC system is not working due to a
fault, a SERVICE TRAILER BRAKE SYSTEM
message displays in the DIC
Manual Trailer Brake Apply Lever
Slide this lever left to apply the trailer s
electric brakes independent of the vehicle s
brakes. Use this lever to adjust Trailer Gain
to achieve the proper power output to the
trailer brakes. The trailer's and the vehicle's
brake lamps will come on when either
vehicle brakes or manual trailer brakes are
applied and properly connected.