2021 DODGE DURANGO tow

148STARTING AND OPERATING
Towing Requirements — Tires
Do not attempt to tow a trailer while using a
compact 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
pressures 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 Úpage 295.
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).
Safety chains must always be used between
your vehicle and trailer. Always connect the
chains to the hook retainers of the vehicle
hitch. Cross the chains under the trailer
tongue and allow enough slack for turning
corners.
Vehicles with trailers should not be parked on
a grade. When parking, apply the parking
brake on the tow vehicle. Put the tow vehicle
transmission in PARK (P). For four-wheel drive
vehicles, make sure the transfer case is not in
NEUTRAL (N). Always, block or "chock" the
trailer wheels.
GCWR must not be exceeded.
Total weight must be distributed between the
tow vehicle and the trailer such that the
following four ratings are not exceeded :
GVWR
GTW
GAWR
Tongue weight rating for the trailer hitch
utilized.
WARNING!
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
distance. When towing, you should allow for
additional 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.

21_WD_OM_EN_USC_t.book Page 148

STARTING AND OPERATING149
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
electric trailer brakes and EOH systems. Some
previous EOH systems may not be compatible
with ITBM.

Integrated Trailer Brake Module (ITBM)
The user interface consists of the following:
Manual Brake Control Lever
Slide the manual brake control lever to the left to
activate 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.
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 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
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 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
(30–40 km/h).

1. Make sure the trailer brakes are in good working condition, functioning normally and
properly adjusted. See a trailer dealer if
necessary.

2. Hook up the trailer and make the electrical connections according to the trailer
manufacturer's instructions.
1 — GAIN Adjustment Button
2 — GAIN Adjustment Button
3 — Manual Brake Control Lever
4

21_WD_OM_EN_USC_t.book Page 149

150STARTING AND OPERATING
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
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 maximum GAIN setting
of 10.
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 determined in the trailer
connection, trailer brake control, or on the trailer
Ú page 83.
NOTE:
An aftermarket controller may be available for
use with trailers with air or EOH trailer brake
systems. To determine the type of brakes on
your trailer and the availability of controllers,
check with your trailer manufacturer or dealer.
Removal of the ITBM will cause errors and it
may cause damage to the electrical system and
electronic modules of the vehicle. See an autho -
rized dealer if an aftermarket module is to be
installed.
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 stopping 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 stopping distance or trailer instability
which could result in damage to your vehicle,
trailer, or other property.

21_WD_OM_EN_USC_t.book Page 150

STARTING AND OPERATING151
Towing Requirements — Trailer Lights And
Wiring
Whenever pulling a trailer, regardless of the trailer
size, stop lights and turn signals on the trailer are
required for motoring safety.
The Trailer Tow Package may include a four- and
seven-pin wiring harness. Use a factory approved
trailer harness and connector.
NOTE:Do not cut or splice wiring into the vehicle’s wiring
harness.
The electrical connections are all complete to the
vehicle but you must mate the harness to a trailer
connector. Refer to the following illustrations.
NOTE:
Disconnect trailer wiring connector from the
vehicle before launching a boat (or any other
device plugged into vehicle’s electrical connect)
into water.
Be sure to reconnect once clear from water
area.
Four-Pin Connector
Seven-Pin Connector

1 — Ground
2 — Park
3 — Left Stop/Turn
4 — Right Stop/Turn
1 — Battery
2 — Backup Lamps
3 — Right Stop/Turn
4 — Electric Brakes
5 — Ground
6 — Left Stop/Turn
7 — Running Lamps
4

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152STARTING AND OPERATING
TOWING TIPS
Before towing, practice turning, stopping, and
backing up the trailer in an area located away from
heavy traffic.
Automatic Transmission
Select the DRIVE (D) range when towing. The
transmission controls include a drive strategy to
avoid frequent shifting when towing. However, if
frequent shifting does occur while in DRIVE, you
can use the AutoStick shift control to manually
select a lower gear.
If equipped with Tow N Go, it is recommended
to place the vehicle in tow mode by pushing the
TOW button.
NOTE:Using a lower gear while operating the vehicle
under heavy loading conditions, will improve
performance and extend transmission life by
reducing excessive shifting and heat buildup.
This action will also provide better engine braking.
AutoStick
When using the AutoStick shift control, select
the highest gear that allows for adequate perfor -
mance and avoids frequent downshifts. For
example, choose “5” if the desired speed can be
maintained. Choose “4” or “3” if needed to
maintain the desired speed.
To prevent excess heat generation, avoid
continuous driving at high RPM. Reduce vehicle
speed as necessary to avoid extended driving at
high RPM. Return to a higher gear or vehicle
speed when grade and road conditions allow.
Cruise Control — If Equipped
Do not use on hilly terrain or with heavy loads.
When using the Cruise Control, if you experience
speed drops greater than 10 mph (16 km/h),
disengage until you can get back to cruising
speed.
Use Cruise Control in flat terrain and with light
loads to maximize fuel efficiency.

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STARTING AND OPERATING153
RECREATIONAL TOWING (BEHIND MOTORHOME)
TOWING THIS VEHICLE BEHIND ANOTHER VEHICLE
NOTE:
When towing your vehicle, always follow appli -
cable state and provincial laws. Contact state
and provincial Highway Safety offices for addi -
tional details.
A flat tow electric power steering enable kit is
available for increased flat tow performance,
contact an authorized dealer for further details.
RECREATIONAL TOWING —
R
EAR-WHEEL DRIVE MODELS
DO NOT flat tow this vehicle. Damage to the
drivetrain will result.
Recreational towing (for two-wheel drive models) is
allowed ONLY if 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 vehicle,
following the dolly manufacturer's
instructions.

2. Drive the rear wheels onto the tow dolly.
3. Firmly apply the parking brake. Shift the transmission into PARK.
4. Turn the ignition OFF.
5. Properly secure the rear wheels to the dolly, following the dolly manufacturer’s
instructions.
Towing Condition Wheels OFF The
Ground Rear-Wheel
Drive Models All-Wheel Drive Models With Single-Speed
Transfer Case All-Wheel Drive Models With Two-Speed
Transfer Case
Flat Tow NONENOT ALLOWED NOT ALLOWED
See Instructions:
Transmission In PARK
Transfer Case In N (Neutral)
Tow In Forward Direction
Dolly Tow Front
NOT ALLOWED NOT ALLOWED NOT ALLOWED
Rear OK NOT ALLOWED NOT ALLOWED
On Trailer ALLOK OK OK4

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154STARTING AND OPERATING
(Continued)
6. Install a suitable clamping device, designed for
towing, to secure the front wheels in the
straight position.
RECREATIONAL TOWING —
A
LL-WHEEL DRIVE MODELS
(S
INGLE-SPEED TRANSFER CASE)
Recreational towing is not allowed. These models
do not have a N (Neutral) position in the transfer
case.
NOTE:This vehicle may be towed on a flatbed or vehicle
trailer provided all four wheels are OFF the ground.
RECREATIONAL TOWING —
A
LL-WHEEL DRIVE MODELS
(T
WO-SPEED TRANSFER CASE)
The transfer case must be shifted into N (Neutral)
and the transmission must be in PARK for
recreational towing. The N (Neutral) selection
button is adjacent to the transfer case selector
switch. Shifts into and out of transfer case N
(Neutral) can take place with the selector switch in
any mode position.
Shifting Into N (Neutral)
CAUTION!
Towing with the rear wheels on the ground will
cause severe transmission damage. Damage
from improper towing is not covered under the
New Vehicle Limited Warranty.
CAUTION!
Towing this vehicle in violation of the above
requirements can cause severe transmission
and/or transfer case damage. Damage from
improper towing is not covered under the New
Vehicle Limited Warranty.
CAUTION!
DO NOT dolly tow any AWD 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.
The transmission must be in PARK for recre -
ational towing.
Before recreational towing, be certain that the
transfer case is fully in N (Neutral)
Ú page 154. Otherwise, internal damage will
result.
Towing this vehicle in violation of the above
requirements can cause severe transmission
and/or transfer case damage. Damage from
improper towing is not covered under the New
Vehicle Limited Warranty.
Do not use a bumper-mounted clamp-on tow
bar on your vehicle. The bumper face bar will
be damaged.
WARNING!
You or others could be injured or killed if you
leave the vehicle unattended with the transfer
case in the N (Neutral) position without first fully
engaging the parking brake. The transfer case N
(Neutral) position disengages both the front and
rear driveshafts from the powertrain and will
allow the vehicle to roll, even if the transmission
is in PARK. The parking brake should always be
applied when the driver is not in the vehicle.
CAUTION!

21_WD_OM_EN_USC_t.book Page 154

STARTING AND OPERATING155
Use the following procedure to prepare your
vehicle for recreational towing.

1. Bring the vehicle to a complete stop on level ground, with the engine running.

2. Press and hold the brake pedal.
3. Shift the transmission into NEUTRAL.
NOTE:
Steps 1 through 3 are requirements that
must be met before pushing the N (Neutral)
button, and must continue to be met until
the shift has been completed. If any of
these requirements are not met before
pushing the N (Neutral) button or are no
longer met during the shift, the N (Neutral)
indicator light will flash continuously until all
requirements are met or until the N
(Neutral) button is released.
The ignition must be in the ON/RUN mode
for a shift to take place and for the position
indicator lights to be operable. If the ignition
is not in the ON/RUN mode, the shift will not
take place and no position indicator lights
will be on or flashing.
A flashing N (Neutral) position indicator light
indicates that shift requirements have not
been met.
4. Using a ballpoint pen or similar object, push and hold the recessed transfer case N
(Neutral) button (located by the selector
switch) for four seconds. The light behind the N
symbol will blink, indicating shift in progress.
The light will stop blinking (stay on solid) when
the shift to N (Neutral) is complete. A “FOUR
WHEEL DRIVE SYSTEM IN NEUTRAL” message
will appear in the instrument cluster.

N (Neutral) Button
5. After the shift is completed and the N (Neutral)
light stays on, release the N (Neutral) button.
6. Shift the transmission into REVERSE or DRIVE.
7. Release the brake pedal for five seconds and ensure that there is no vehicle movement.
8. Press and hold the brake pedal. Shift the transmission back into NEUTRAL.
9. Firmly apply the parking brake.
10. With the transmission and transfer case in NEUTRAL, push and hold the ENGINE START/
STOP button until the engine turns off.
11. Place the transmission gear selector in PARK. Release the brake pedal.
12. Push the ENGINE START/STOP button twice (without pressing the brake pedal) to turn the
ignition to the OFF mode.
13. Attach the vehicle to the tow vehicle using a suitable tow bar.
14. Release the parking brake.
CAUTION!
It is necessary to follow these steps to be certain
that the transfer case is fully in N (Neutral)
before recreational towing to prevent damage to
internal parts.
CAUTION!
Damage to the transmission may occur if the
transmission is shifted into PARK with the
transfer case in N (Neutral) and the engine
running. With the transfer case in N (Neutral)
ensure that the engine is OFF before shifting the
transmission into PARK.
4

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