Towing Requirements — Trailer Brakes
•
Do not interconnect the hydraulic brake system or
vacuum system of your vehicle with that of the
trailer. This could cause inadequate braking and
possible personal injury.
•
An electronically actuated trailer brake controller is
required when towing a trailer with electronically
actuated brakes. When towing a trailer equipped
with a hydraulic surge actuated brake system, an
electronic brake controller is not required.
•
Trailer brakes are recommended for trailers over
1,000 lb (453 kg) and required for trailers in excess
of 2,000 lb (907 kg).
WARNING!
•
Do not connect trailer brakes to your vehicle's
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have an
accident.
•
Towing any trailer will increase your stopping dis-
tance. When towing, you should allow for addi-
tional space between your vehicle and the vehicle
in front of you. Failure to do so could result in an
accident.
CAUTION!
If the trailer weighs more than 1,000 lb (453 kg)
loaded, it should have its own brakes and they should
be of adequate capacity. Failure to do this could lead
to accelerated brake lining wear, higher brake pedal
effort, and longer stopping distances.
Integrated Trailer Brake Module (ITBM)
— If Equipped
Your vehicle may have an ITBM for Electric and Electric
Over Hydraulic (EOH) trailer brakes.
NOTE:
This module has been designed and verified with elec-
tric trailer brakes and new electric over hydraulic sys-
tems. Some previous EOH systems may not be compat-
ible with ITBM.
The user interface consists of the following:
Manual Brake Control Lever
Slide the manual brake control lever to the left to acti-
vate 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
status.
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 Dis-
connected Warning Light will not be displayed.
If a fault is detected in the trailer wiring or the ITBM, the
Trailer Brake Disconnected Warning Light will flash.
GAIN Adjustment Buttons (+/-)
Pushing these buttons will adjust the brake control
power 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 control
for the specific towing condition and should be changed
as towing conditions change. Changes to towing condi-
tions include trailer load, vehicle load, road conditions
and weather.
Integrated Trailer Brake Module (ITBM)
1 — GAIN Adjustment “–” Button
2 — GAIN Adjustment “+” Button
3 — Manual Brake Control Lever
164 STARTING AND OPERATING
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