Adjusting GAIN
NOTE:
This should only be performed in a traffic free environ-
ment at speeds of approximately 20–25 mph
(30–40 km/h).
1. Make sure the trailer brakes are in good working
condition, functioning normally and properly
adjusted. See your trailer dealer if necessary.
2. Hook up the trailer and make the electrical connec-
tions according to the trailer manufacturer's
instructions.
3. When a trailer with electric/EOH brakes is plugged
in, the trailer connected message should appear in
the instrument cluster display (if the connection is
not recognized by the ITBM, braking functions will
not be available), the GAIN setting will illuminate
and the correct type of trailer must be selected from
the instrument cluster display options.
4. Push the UP or DOWN button on the steering wheel
until “TRAILER TOW” appears on the screen.
5. Push the RIGHT arrow on the steering wheel to enter
“TRAILER TOW”.
6. Push the UP or DOWN buttons until the Trailer Brake
Type appears on the screen.
7. Push the RIGHT arrow and then push the UP or
DOWN buttons until the proper Trailer Brake Type
appears on the screen.
8. In a traffic-free environment, tow the trailer on a dry,
level surface at a speed of 20–25 mph
(30–40 km/h) and squeeze the manual brake con-
trol lever completely.
9. If the trailer wheels lockup (indicated by squealing
tires), reduce the GAIN setting; if the trailer wheels
turn freely, increase the GAIN setting.
Repeat steps 8 and 9 until the GAIN setting is at a point
just below trailer wheel lockup. If towing a heavier
trailer, trailer wheel lockup may not be attainable even
with the maximum GAIN setting of 10.
Light Electric Heavy Electric Light EOH Heavy EOH
Type of Trailer Brakes Electric Trailer Brakes Electric Trailer Brakes
Electric Over Hydraulic Trailer
Brakes
Electric Over Hydraulic Trailer
Brakes
Load *Under 10,000 lb (4,536 kg) *Above 10,000 lb (4,536 kg) *Under 10,000 lb (4,536 kg) *Above 10,000 lb (4,536 kg)
* The suggested selection depends and may change depending on the customer preferences for braking performance. Condition of the trailer brakes, driving and road state may
also affect the selection.
Display Messages
The trailer brake control interacts with the instrument
cluster display. Display messages, along with a single
chime, will be displayed when a malfunction is deter-
mined in the trailer connection, trailer brake control, or
on the trailer
page 85.
WARNING!
Connecting a trailer that is not compatible with the
ITBM system may result in reduced or complete loss
of trailer braking. There may be an increase in stop-
ping distance or trailer instability which could result in
personal injury.
CAUTION!
Connecting a trailer that is not compatible with the
ITBM system may result in reduced or complete loss
of trailer braking. There may be an increase in stop-
ping distance or trailer instability which could result in
damage to your vehicle, trailer, or other property.
STARTING AND OPERATING 165
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