Towing Requirements — Tires
•
Do not attempt to tow a trailer while using a com-
pact spare tire.
•
Do not drive more than 50 mph (80 km/h) when
towing while using a full size spare tire.
•
Proper tire inflation pressures are essential to the
safe and satisfactory operation of your vehicle.
•
Check the trailer tires for proper tire inflation pres-
sures before trailer usage.
•
Check for signs of tire wear or visible tire damage
before towing a trailer.
•
Replacing tires with a higher load carrying capacity
will not increase the vehicle's GVWR and GAWR
limits.
•
For further information page 234.
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 EOH systems. Some previous
EOH systems may not be compatible 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 brake lamps will come on
when either vehicle braking or manual trailer brakes
are applied.
Integrated Trailer Brake Module (ITBM)
1 — GAIN Adjustment Button
2 — GAIN Adjustment Button
3 — Manual Brake Control Lever
120 STARTING AND OPERATING
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