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.

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.

All DIC warning and service messages must first be acknowledged by the driver by pressing the odometer trip stem or the DIC Vehicle Information button (if equipped) before the Trailer Brake Display Page can be displayed and Trailer Gain can be adjusted.

TRAILER GAIN: This setting is displayed any time the Trailer Brake Display Page is active. This setting can be adjusted from 0.0 to 10.0 with either a trailer connected or disconnected. To adjust the Trailer Gain, press one of the Trailer Gain adjustment buttons located on the Trailer Brake Control Panel. Press and hold a gain button to cause the Trailer Gain to continuously adjust.

To turn the output to the trailer off, adjust the Trailer Gain setting to 0.0 (zero).

0.0 (zero) gain is the factory default setting. To properly adjust trailer gain, see “Trailer Gain Adjustment Procedure” later in this section.

TRAILER OUTPUT: This is displayed any time a trailer with electric brakes is connected. Output to the electric brakes is based on the amount of vehicle braking present and relative to the Trailer Gain setting. Output is displayed from 0 to 10 bars for each gain setting.

Non-hybrid vehicles with Trailer Sway Control (TSC) or Hill Start Assist (HSA), output to the electric trailer brakes may be displayed when the systems are active. See Trailer Sway Control (TSC) on page 9‑112 and Hill Start Assist (HSA) on page 9‑59.

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 is displayed)
• A trailer with electric brakes has become disconnected (a CHECK TRAILER WIRING message will also be displayed on the DIC)
• There is a fault present in the wiring to the electric trailer brakes (a CHECK TRAILER WIRING message will also be displayed on the DIC)
• There is a fault in the ITBC system (a SERVICE TRAILER BRAKE SYSTEM message will also be displayed in the DIC)

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