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 condi-
tion and should be changed as towing condi-
tions change. Changes to towing conditions
include trailer load, vehicle load, road condi-
tions and weather.
Adjusting GAIN
NOTE:
This should only be performed in a traffic free
environment at speeds of approximately 20–
25 mph (30–40 km/h).
1. Make sure the trailer brakes are in goodworking condition, functioning normally
and properly adjusted. See your trailer
dealer if necessary. 2. Hook up the trailer and make the electri-
cal connections 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 recog-
nized 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” ap-
pears 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 control 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 maxi-
mum GAIN setting of 10.
145
RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
Towing ConditionWheels OFF The
Ground Two-Wheel Drive
Models Four-Wheel Drive Models
Flat Tow NONENOT ALLOWED See Instructions
• Automatic transmission in PARK
• Manual transmission in gear (NOT in NEUTRAL)
• Transfer case in NEUTRAL (N)
• Tow in forward direction
Dolly Tow Front
NOT ALLOWED
NOT ALLOWED
Rear OK NOT ALLOWED
On Trailer ALLOK OK
NOTE:
• When towing your vehicle, always follow
applicable state and provincial laws. Con-
tact state and provincial Highway Safety
offices for additional details.
Recreational Towing —
Two-Wheel Drive Models
DO NOT flat tow this vehicle. Damage to the
drivetrain will result. Recreational towing (for two-wheel drive
models) is allowed
ONLYif the rear wheels are
OFF the ground. This may be accomplished
using a tow dolly or vehicle trailer. If using a
tow dolly, follow this procedure:
1. Properly secure the dolly to the tow ve- hicle, following the dolly manufacturer's
instructions.
2. Drive the rear wheels onto the tow dolly. 3. Firmly apply the parking brake. Place au-
tomatic transmission in PARK, manual
transmission in gear (not in NEUTRAL).
4. Properly secure the rear wheels to the dolly, following the dolly manufacturer's
instructions.
5. Turn the ignition OFF and remove the key fob.
6. Install a suitable clamping device, de- signed for towing, to secure the front
wheels in the straight position.
147
CAUTION!
• Towing with the rear wheels on theground will cause severe transmission
damage. Damage from improper towing
is not covered under the New Vehicle
Limited Warranty.
• Do not disconnect the driveshaft be-
cause fluid may leak from the transmis-
sion, causing damage to internal parts.
Recreational Towing —
Four-Wheel Drive Models
NOTE:
Both the manual shift and electronic shift
transfer cases must be shifted into NEUTRAL
(N) for recreational towing. Automatic trans-
missions must be shifted into PARK for rec-
reational towing. Manual transmissions must
be placed in gear (NOT in NEUTRAL) for
recreational towing. Refer to the following for
the proper transfer case NEUTRAL (N) shift-
ing procedure for your vehicle.
CAUTION!
• DO NOT dolly tow any 4WD vehicle.Towing with only one set of wheels on
the ground (front or rear) will cause
severe transmission and/or transfer case
damage. Tow with all four wheels either
ON the ground, or OFF the ground (using
a vehicle trailer).
• Tow only in the forward direction. Towing
this vehicle backwards can cause severe
damage to the transfer case.
• Before recreational towing, the transfer
case must be in NEUTRAL. To be certain
the transfer case is fully in NEUTRAL,
perform the procedure outlined under
“Shifting Into NEUTRAL”. Internal
transmission damage will result, if the
transfer case is not in NEUTRAL during
towing.
• Automatic transmissions must be
placed in PARK, and manual transmis-
sions must be placed in gear (not in
Neutral) for recreational towing.
• Towing this vehicle in violation of the
above requirements can cause severe
CAUTION!
transmission and/or transfer case dam-
age. Damage from improper towing is
not covered under the New Vehicle Lim-
ited Warranty.
• Do not disconnect the rear driveshaft
because fluid will leak from the transfer
case, causing damage to internal parts.
• Do not use a bumper-mounted clamp-on
tow bar on your vehicle. The bumper
face bar will be damaged.
Shifting Into NEUTRAL (N)
Use the following procedure to prepare your
vehicle for recreational towing.
WARNING!
You or others could be injured or killed if
you leave the vehicle unattended with the
transfer case in the NEUTRAL (N) position
without first fully engaging the parking
brake. The transfer case NEUTRAL (N)
position disengages both the front and rear
driveshafts from the powertrain, and will
allow the vehicle to roll, even if the auto-
STARTING AND OPERATING
148
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS.....154
BULB REPLACEMENT ...........154
Replacement Bulbs.............154
FUSES.................... .155
Power Distribution Center.........155
JACKING AND TIRE CHANGING .....160
4500/5500 Models.............160
Preparations For Jacking ..........160
Jacking Instructions 4500 And
5500 Series .................161 To Stow The Flat Or Spare —
If Equipped
.................163
Hub Caps/Wheel Covers —
If Equipped .................163
JUMP STARTING ..............164
Preparations For Jump Start ........164
Jump Starting Procedure ..........165
IF YOUR ENGINE OVERHEATS ......166
GEAR SELECTOR OVERRIDE .......167FREEING A STUCK VEHICLE
.......168
TOWING A DISABLED VEHICLE .....169
Two-Wheel Drive Models..........170
Four-Wheel Drive Models ..........170
Emergency Tow Hooks — If Equipped . .171
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) ................... .171
EVENT DATA RECORDER (EDR) ......171
IN CASE OF EMERGENCY
153
CavityCartridge Fuse Micro Fuse Description
F78 –10 Amp Red Engine Control Module / Electric Power Steering
F79 –15 Amp Blue Clearance Lights
F80 –10 Amp Red Universal Garage Door Opener / Compass
F81 –20 Amp Yellow Trailer Tow Right Turn / Stop Lights
F82 –10 Amp Red Steering Column Control Module / Cruise Control
F84 –15 Amp Blue Switch Bank / Instrument Cluster
F85 –10 Amp Red Airbag Module
F86 –10 Amp Red Airbag Module
F87 –10 Amp Red Air Suspension – If Equipped / Trailer Tow / Steering Col-
umn Control Module
F88 –15 Amp Blue Instrument Panel Cluster
F90/F91 –20 Amp Yellow Power Outlet (Rear Seats) Customer Selectable
F93 –20 Amp Yellow Cigar Lighter
F94 –10 Amp Red Shifter / Transfer Case Module
F95 –10 Amp Red Rear Camera / Park Assist
F96 –10 Amp Red Rear Seat Heater Switch
F97 –25 Amp Clear Rear Heated Seats & Heated Steering Wheel – If
Equipped
F98 –25 Amp Clear Front Heated Seats – If Equipped
F99 –10 Amp Red Climate Control
F100 –10 Amp Red Upfitters – If Equipped
F101 –15 Amp Blue Electrochromatic Mirror / Smart High Beams – If
Equipped
F104 –20 Amp Yellow Power Outlets (Instrument Panel / Center Console)
159
CAUTION!
• When installing the power distributioncenter cover, it is important to ensure
the cover is properly positioned and fully
latched. Failure to do so may allow water
to get into the power distribution center
and possibly result in an electrical sys-
tem failure.
• When replacing a blown fuse, it is impor-
tant to use only a fuse having the correct
amperage rating. The use of a fuse with
a rating other than indicated may result
in a dangerous electrical system over-
load. If a properly rated fuse continues
to blow, it indicates a problem in the
circuit that must be corrected.
JACKING AND TIRE CHANGING
WARNING!
• Do not attempt to change a tire on theside of the vehicle close to moving traf-
fic. Pull far enough off the road to avoid
the danger of being hit when operating
the jack or changing the wheel.
• Being under a jacked-up vehicle is dan-
gerous. The vehicle could slip off the
jack and fall on you. You could be
crushed. Never put any part of your body
under a vehicle that is on a jack. If you
need to get under a raised vehicle, take
it to a service center where it can be
raised on a lift.
• Never start or run the engine while the
vehicle is on a jack.
• The jack is designed to be used as a tool
for changing tires only. The jack should
not be used to lift the vehicle for service
purposes. The vehicle should be jacked
on a firm level surface only. Avoid ice or
slippery areas.
4500/5500 Models
These vehicles do not come equipped with a
jack.
NOTE:
Jacking and tire changing on 4500/
5500 models should be performed by an
authorized dealer, or knowledgeable service
personnel with the appropriate heavy duty
equipment, like a tire service company.
Preparations For Jacking
1. Park the vehicle on a firm, level surface.
Avoid ice or slippery areas.
WARNING!
Do not attempt to change a tire on the side
of the vehicle close to moving traffic, pull
far enough off the road to avoid being hit
when operating the jack or changing the
wheel.
2. Place the gear selector into PARK. On four-wheel drive vehicles, shift the trans-
fer case to the 4L position.
3. Turn on the Hazard Warning flasher.
IN CASE OF EMERGENCY
160
4. Apply the parking brake.
5. Turn the ignition OFF.
6. Block both the front and rear of the wheeldiagonally opposite the jacking position.
For example, if the right front wheel is
being changed, block the left rear wheel.
NOTE:
Passengers should not remain in the vehicle
when the vehicle is being jacked.Jacking Instructions 4500 And
5500 Series
WARNING!
Carefully follow these tire changing warn-
ings to help prevent personal injury or
damage to your vehicle:
• Always park on a firm, level surface as far from the edge of the roadway as
possible before raising the vehicle.
• Turn on the Hazard Warning flasher.
• Block the wheel diagonally opposite the
wheel to be raised.
• Set the parking brake firmly and set the
transmission in PARK.
• Never start or run the engine with the
vehicle on a jack.
• Do not let anyone sit in the vehicle when
it is on a jack.
• Do not get under the vehicle when it is
on a jack. If you need to get under a
raised vehicle, take it to a service center
where it can be raised on a lift.
• Only use the jack in the positions indi-
cated and for lifting this vehicle during a
tire change.
WARNING!
• If working on or near a roadway, beextremely careful of motor traffic.
• To assure that spare tires, flat or in-
flated, are securely stowed, spares must
be stowed with the valve stem facing the
ground.
Wheel Blocked
Warning Label
161
CAUTION!
Do not attempt to raise the vehicle by
jacking on locations other than those indi-
cated in the Jacking Instructions for this
vehicle.
1. If equipped, remove the spare wheel, jack, and tools from storage.
2. Using the lug wrench, loosen, but do not remove, the lug nuts by turning them
counterclockwise one turn while the
wheel is still on the ground.
3. When changing the front wheel, assemble the jack driver to the jack and connect the
jack driver to the extension tube. Place
the jack under the axle as close to the tire
as possible with the jack driver extending
to the front. Connect the extension tubes
and lug wrench. When changing a rear wheel, assemble
the jack driver to the jack and connect
the jack driver to the extension tubes.
Securely place the jack under the sway
bar bracket (unless both tires are flat on
one side, then place jack under shock
bracket) facing forward in vehicle. Con-
nect the extension tubes and lug wrench.Before raising the wheel off the ground,
make sure that the jack will not damage
surrounding truck parts and adjust the jack
position as required.
NOTE:
If the jack will not lower by turning the
dial (thumbwheel) by hand, it may be
necessary to use the jack driver in order to
lower the jack.
Front Jacking LocationsRear Jacking Locations
IN CASE OF EMERGENCY
162