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STARTING AND OPERATING 217
The user interface consists of the following:
Manual Brake Control Lever
Slide the manual brake control lever to the left to
a
ctivate power to the trailer's electric brakes
independent of the tow vehicle's brakes. If the
manual brake control lever is activated while the
brake is also applied, the greater of the two inputs
determines the power sent to the trailer brakes.
The trailer and the vehicle’s stop lamps will come
on when braking normally with the vehicle brake
pedal. Only the trailer stop lamps will come on
when the manual brake control lever is applied.
Trailer Brake Status Indicator Light
This light indicates the trailer electrical connection
st
atus.
If no electrical connection is detected after the
ignition is turned on, pushing the GAIN adjustment
button or sliding the manual brake control lever
will display the GAIN setting for 10 seconds and the
“Trailer Brake Status Indicator Light” will not be
displayed.
If a fault is detected in the trailer wiring or the
Integrated Trailer Brake Module (ITBM), the
“Trailer Brake Status Indicator Light” will flash.
GAIN Adjustment Buttons (+/-)
Pushing these buttons will adjust the brake control
pow
er output to the trailer brakes in
0.5
increments. The GAIN setting can be increased
to a maximum of 10 or decreased to a minimum of
0 (no trailer braking).
GAIN
The GAIN setting is used to set the trailer brake
c
ontrol for the specific towing condition and should
be changed as towing conditions change. Changes
to towing conditions include trailer load, vehicle
load, road conditions and weather.
Adjusting GAIN
NOTE:
This should only be performed in a traffic free envi-
ronment at speeds of approximately 20–25 mph
(
3
0–40 km/h).
1. Ma
ke 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
connections according to the trailer
manufacturer's instructions.
3. When a trailer with electric/EOH brakes is
p
lugged 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
w
heel until “TRAILER TOW” appears on the
screen.
5. Push the RIGHT arrow on the steering wheel to
e
nter “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
(
3
0–40 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.
4
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