warning DODGE DURANGO 2021 Repair Manual

104STARTING AND OPERATING
COLD WEATHER OPERATION
(B
ELOW –22°F OR −30°C)
To ensure reliable starting at these temperatures,
use of an externally powered electric engine block
heater (available from an authorized dealer) is
recommended.
AFTER STARTING
The idle speed is controlled automatically, and it
will decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and
permits quicker starts in cold weather. Connect the
cord to a standard 110-115 Volt AC electrical
outlet with a grounded, three-wire extension cord.
The engine block heater must be plugged in at
least one hour to have an adequate warming effect
on the engine. The engine block heater cord is located:
3.6L Engine — Bundled and strapped behind the
engine air cleaner assembly.
5.7L Engine — Bundled and strapped in front of
the power distribution center.
ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine
and drivetrain (transmission and axle) in your
vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km),
speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
Brief full-throttle acceleration within the limits of
local traffic laws contributes to a good break-in.
Wide-open throttle acceleration in low gear can be
detrimental and should be avoided.
WARNING!
Never pour fuel or other flammable liquid into
the throttle body air inlet opening in an
attempt to start the vehicle. This could result
in flash fire causing serious personal injury.
Do not attempt to push or tow your vehicle to
get it started. Vehicles equipped with an auto -
matic transmission cannot be started this
way. Unburned fuel could enter the catalytic
converter and once the engine has started,
ignite and damage the converter and vehicle.
If the vehicle has a discharged battery,
booster cables may be used to obtain a start
from a booster battery or the battery in
another vehicle. This type of start can be
dangerous if done improperly Ú page 255.
CAUTION!
To prevent damage to the starter, do not
continuously crank the engine for more than 25
seconds at a time. Wait 60 seconds before
trying again.
WARNING!
Remember to disconnect the engine block
heater cord before driving. Damage to the
110-115 Volt electrical cord could cause
electrocution.

21_WD_OM_EN_USC_t.book Page 104

STARTING AND OPERATING105
(Continued)
The engine oil installed in the engine at the factory
is a high-quality energy conserving type lubricant.
Oil changes should be consistent with anticipated
climate conditions under which vehicle operations
will occur. For the recommended viscosity and
quality grades see Ú
page 322.
NOTE:A new engine may consume some oil during its first
few thousand miles (kilometers) of operation. This
should be considered a normal part of the break-in
and not interpreted as a problem. Please check
your oil level with the engine oil indicator often
during the break-in period. Add oil as required.
PARKING BRAKE
Before leaving the vehicle, make sure that the
parking brake is fully applied and place the gear
selector in the PARK (P) position.
The foot operated parking brake is located below
the lower left corner of the instrument panel. To
apply the parking brake, firmly push the parking
brake pedal fully. To release the parking brake,
press the parking brake pedal a second time and
let your foot up as you feel the brake disengage.
Parking Brake

When the parking brake is applied with the ignition
switch in the ON/RUN mode, the Brake Warning
Light in the instrument cluster will illuminate.
NOTE:
When the parking brake is applied and the
transmission is placed in gear, the Brake
Warning Light will flash. If vehicle speed is
detected, a chime will sound to alert the driver.
Fully release the parking brake before
attempting to move the vehicle.
This light only shows that the parking brake is
applied. It does not show the degree of brake
application. When parking on a hill, it is important to turn the
front wheels toward the curb on a downhill grade
and away from the curb on an uphill grade. Apply
the parking brake before placing the gear selector
in PARK, otherwise the load on the transmission
locking mechanism may make it difficult to move
the gear selector out of PARK.
CAUTION!
Never use Non-Detergent Oil or Straight Mineral
Oil in the engine or damage may result.WARNING!
Never use the PARK position as a substitute
for the parking brake. Always apply the
parking brake fully when parked to guard
against vehicle movement and possible injury
or damage.
When leaving the vehicle, always remove the
key fob from the ignition and lock your vehicle.
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing chil
-
dren to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured.
Children should be warned not to touch the
parking brake, brake pedal or the gear
selector.
When leaving the vehicle, always make sure
the keyless ignition node is in the OFF mode,
remove the key fob from the vehicle and lock
the vehicle.
4

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106STARTING AND OPERATING
(Continued)
(Continued)
AUTOMATIC TRANSMISSION
You must press and hold the brake pedal while
shifting out of PARK.Do not leave the key fob in or near the vehicle
or in a location accessible to children, and do
not leave the ignition of a vehicle equipped
with Keyless Enter ‘n Go™ in the ACC or
ON/RUN mode. A child could operate power
windows, other controls, or move the vehicle.
Be sure the parking brake is fully disengaged
before driving; failure to do so can lead to
brake failure and a collision.
Always fully apply the parking brake when
leaving your vehicle, or it may roll and cause
damage or injury. Also be certain to leave the
transmission in PARK. Failure to do so may
allow the vehicle to roll and cause damage or
injury.
CAUTION!
If the Brake Warning Light remains on with the
parking brake released, a brake system
malfunction is indicated. Have the brake system
serviced by an authorized dealer immediately.
WARNING!
WARNING!
Never use the PARK (P) position as a substi -
tute for the parking brake. Always apply the
parking brake fully when exiting the vehicle to
guard against vehicle movement and possible
injury or damage.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the transmission gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
exiting the vehicle.
The transmission may not engage PARK if the
vehicle is moving. Always bring the vehicle to a
complete stop before shifting to PARK, and
verify that the transmission gear position indi -
cator solidly indicates PARK without blinking.
Ensure that the vehicle is completely stopped,
and the PARK position is properly indicated,
before exiting the vehicle.
It is dangerous to shift out of PARK or
NEUTRAL (N) if the engine speed is higher
than idle speed. If your foot is not firmly
pressing the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with all
vehicles, you should never exit a vehicle while
the engine is running. Before exiting a vehicle,
always come to a complete stop, then apply
the parking brake, shift the transmission into
PARK, and turn the ignition OFF. When the
ignition is in the OFF mode, the transmission
is locked in PARK, securing the vehicle against
unwanted movement.
When exiting the vehicle, always make sure
the ignition is in the OFF mode, remove the
key fob from the vehicle, and lock the vehicle.
WARNING!

21_WD_OM_EN_USC_t.book Page 106

STARTING AND OPERATING107
IGNITION PARK INTERLOCK
This vehicle is equipped with an Ignition Park
Interlock which requires the transmission to be in
PARK (P) before the ignition can be turned to the
OFF mode. This helps the driver avoid inadvertently
leaving the vehicle without placing the
transmission in PARK. This system also locks the
transmission in PARK whenever the ignition is in
the OFF mode.
NOTE:The transmission is NOT locked in PARK when the
ignition is in the ACC mode (even though the
engine will be off). Ensure that the transmission is
in PARK, and the ignition is OFF (not in ACC mode)
before exiting the vehicle.
BRAKE TRANSMISSION SHIFT
I
NTERLOCK (BTSI) SYSTEM
This vehicle is equipped with a BTSI system that
holds the transmission gear selector in PARK
unless the brakes are applied. To shift the
transmission out of PARK, the engine must be
running and the brake pedal must be pressed. The
brake pedal must also be pressed to shift from
NEUTRAL into DRIVE or REVERSE when the vehicle
is stopped or moving at low speeds.
FUEL ECONOMY (ECO) MODE
The Fuel Economy (ECO) mode can improve the
vehicle's overall fuel economy during normal
driving conditions. Push the ECO button in the
center stack of the instrument panel to activate or
disable ECO mode. A light on the button indicates
when ECO mode is disabled.

ECO OFF Button

When the Fuel Economy (ECO) Mode is enabled,
the vehicle control systems will change the
following:
The transmission will upshift sooner and
downshift later.
The overall driving performance will be more
conservative.
Some ECO mode functions may be temporarily
inhibited based on temperature and other
factors.
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing chil -
dren to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured.
Children should be warned not to touch the
parking brake, brake pedal or the transmis -
sion gear selector.
Do not leave the key fob in or near the vehicle
(or in a location accessible to children), and do
not leave the ignition in the ACC or ON/RUN
mode. A child could operate power windows,
other controls, or move the vehicle.
CAUTION!
Damage to the transmission may occur if the
following precautions are not observed:
Shift into or out of PARK or REVERSE (R) only
after the vehicle has come to a complete stop.
Do not shift between PARK, REVERSE,
NEUTRAL, or DRIVE (D) when the engine is
above idle speed.
Before shifting into any gear, make sure your
foot is firmly pressing the brake pedal.
WARNING!
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STARTING AND OPERATING109
(Continued)
(Continued)
NOTE:On vehicles equipped with the electronically
shifted transfer case, ensure that the transfer case
is in AWD AUTO or LOW RANGE position on the
AWD Control Switch. Ensure that the NEUTRAL
position light is NOT illuminated.
When exiting the vehicle, always:
Apply the parking brake.
Shift the transmission into PARK.
Turn the ignition OFF.
Remove the key fob from the vehicle.
WARNING!
Never use the PARK (P) position as a substi
-
tute for the parking brake. Always apply the
parking brake fully when exiting the vehicle to
guard against vehicle movement and possible
injury or damage.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the transmission gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
exiting the vehicle.
The transmission may not engage PARK if the
vehicle is moving. Always bring the vehicle to a
complete stop before shifting to PARK, and
verify that the transmission gear position indi -
cator solidly indicates PARK without blinking.
Ensure that the vehicle is completely stopped,
and the PARK position is properly indicated,
before exiting the vehicle.
It is dangerous to shift out of PARK or
NEUTRAL (N) if the engine speed is higher
than idle speed. If your foot is not firmly
pressing the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with all
vehicles, you should never exit a vehicle while
the engine is running. Before exiting a vehicle,
always come to a complete stop, then apply
the parking brake, shift the transmission into
PARK, and turn the ignition OFF. When the
ignition is in the OFF mode, the transmission
is locked in PARK, securing the vehicle against
unwanted movement.
WARNING!
When exiting the vehicle, always make sure
the ignition is in the OFF mode, remove the
key fob from the vehicle, and lock the vehicle.
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing chil -
dren to be in a vehicle unattended is
dangerous for a number of reasons. A child or
others could be seriously or fatally injured.
Children should be warned not to touch the
parking brake, brake pedal or the transmis -
sion gear selector.
Do not leave the key fob in or near the vehicle
(or in a location accessible to children), and do
not leave the ignition in the ACC or ON/RUN
mode. A child could operate power windows,
other controls, or move the vehicle.
CAUTION!
Before moving the transmission gear selector
out of PARK, you must start the engine, and
also press the brake pedal. Otherwise,
damage to the gear selector could result.
DO NOT race the engine when shifting from
PARK or NEUTRAL into another gear range, as
this can damage the drivetrain.
WARNING!
4

21_WD_OM_EN_USC_t.book Page 109

110STARTING AND OPERATING
The following indicators should be used to ensure
that you have properly engaged the transmission
into the PARK position:
When shifting into PARK, push the lock button
on the gear selector and firmly move the
selector all the way forward until it stops and is
fully seated.
Look at the transmission gear position display
and verify that it indicates the PARK position (P),
and is not blinking.
With the brake pedal released, verify that the
gear selector will not move out of PARK.
REVERSE (R)
This range is for moving the vehicle backward.
Shift into REVERSE only after the vehicle has come
to a complete stop.
NEUTRAL (N)
Use this range when the vehicle is standing for
prolonged periods with the engine running. Apply
the parking brake and shift the transmission into
PARK (P) if you must exit the vehicle.
DRIVE (D)
This range should be used for most city and
highway driving. It provides the smoothest upshifts
and downshifts, and the best fuel economy. The
transmission automatically upshifts through all
forward gears. When frequent transmission shifting occurs (such
as when operating the vehicle under heavy loading
conditions, in hilly terrain, traveling into strong
head winds, or while towing a heavy trailer), use
the AutoStick shift control to select a lower gear
Ú
page 111. Under these conditions, using a lower
gear will improve performance and extend
transmission life by reducing excessive shifting
and heat buildup.
During cold temperatures, transmission operation
may be modified depending on engine and
transmission temperature as well as vehicle
speed. This feature improves warm up time of the
engine and transmission to achieve maximum
efficiency. Engagement of the torque converter
clutch is inhibited until the transmission fluid is
warm. Normal operation will resume once the
transmission temperature has risen to a suitable
level.
Manual (M)
The MANUAL (M, +/-) position (beside the DRIVE
position) enables full manual control of
transmission shifting (also known as AutoStick
mode Ú page 111). Toggling the gear selector
forward (-) or rearward (+) while in the MANUAL
(AutoStick) position will manually select the
transmission gear, and will display the current gear
in the instrument cluster as 1, 2, 3, etc.
WARNING!
Do not coast in NEUTRAL and never turn off the
ignition to coast down a hill. These are unsafe
practices that limit your response to changing
traffic or road conditions. You might lose control
of the vehicle and have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for any
other reason with the transmission in NEUTRAL
can cause severe transmission damage.
For Recreational Towing Ú page 153.
For Towing A Disabled Vehicle Ú page 261.

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112STARTING AND OPERATING
If a requested downshift would cause the
engine to over-speed, that shift will not occur.
The system will ignore attempts to upshift at too
low of a vehicle speed.
Holding the (-) paddle pressed, or holding the
gear selector in the (-) position, will downshift
the transmission to the lowest gear possible at
the current speed.
Transmission shifting will be more noticeable
when AutoStick is enabled.
The system may revert to automatic shift mode
if a fault or overheat condition is detected.
To disengage AutoStick mode, return the gear
selector to the DRIVE (D) position, or press and
hold the (+) shift paddle until "D" is indicated in the
instrument cluster. You can shift in or out of
AutoStick mode at any time without taking your
foot off the accelerator pedal.
SPORT MODE — IF EQUIPPED
Your vehicle is equipped with a SPORT Mode
feature. The engine, transmission, and steering
systems are all set to their SPORT settings. SPORT
Mode will provide improved throttle response and
modified transmission shift points for an enhanced
driving experience, as well as greater amount of
steering feel. This mode may be activated and
deactivated by pushing the SPORT button on the
instrument panel switch bank.
ALL-WHEEL DRIVE OPERATION
SINGLE-SPEED OPERATING
I
NSTRUCTIONS/PRECAUTIONS —
I
F EQUIPPED
This system contains a single-speed (HI range only)
transfer case, which provides convenient full-time
All-Wheel Drive (AWD). No driver interaction is
required. The Brake Traction Control (BTC) System,
which combines standard ABS and Traction
Control, provides resistance to any wheel that is
slipping to allow additional torque transfer to
wheels with traction.
NOTE:This system is not appropriate for conditions where
AWD Low is recommended Ú page 157.
ELECTRONICALLY SHIFTED TRANSFER
C
ASE — IF EQUIPPED
This is an electronically shifted transfer case and it
is operated by the AWD control switch, which is
located on the center console.

AWD Control Switch (Two-Position)

This electronically shifted transfer case provides
three positions:
All-Wheel Drive Auto Range (AWD AUTO)
All-Wheel Drive Low Range (AWD LOW)
N (NEUTRAL)
WARNING!
Do not downshift for additional engine braking
on a slippery surface. The drive wheels could
lose their grip and the vehicle could skid,
causing a collision or personal injury.

21_WD_OM_EN_USC_t.book Page 112

STARTING AND OPERATING113
When additional traction is required, the transfer
case AWD LOW position can be used to lock the
front and rear driveshafts together forcing the front
and rear wheels to rotate at the same speed. This
is accomplished by pushing the AWD LOW switch
Ú page 114. The AWD LOW position is designed for
loose, slippery road surfaces only. Driving in the
AWD LOW position on dry, hard surfaced roads
may cause increased tire wear and damage to the
driveline components.
Transfer Case Position Indicator Messages
The Transfer Case Position Indicator message
(AWD LOW) is located in the instrument cluster and
indicate the current and desired transfer case
selection Ú page 83. When you select a different
transfer case position, the position indicator lights
will do the following:
If All Shift Conditions Are Met:

1. The current position indicator light will turn off.

2. The selected position indicator light will flash until the transfer case completes the shift.
3. When the shift is complete, the indicator light for the selected position will stop flashing and
remain on. If shift conditions are not met, one or more of the
following events may occur:

1. The indicator light for the current position will
remain on.

2. The newly selected position indicator light will continue to flash.
3. The transfer case will not shift.
NOTE:Before retrying a selection, make certain that all
the necessary requirements for selecting a new
transfer case position have been met Úpage 114.
The “SERV AWD” Warning Light monitors the
electronic shift all-wheel drive system. If this light
remains on after engine start up or illuminates
during driving, it means that the all-wheel drive
system is not functioning properly and that service
is required.
NOTE:Do not attempt to make a shift while only the front
or rear wheels are spinning. This could cause
damage to driveline components.
When operating your vehicle in AWD LOW, the
engine speed is approximately three times that of
the AWD AUTO position at a given road speed. Take
care not to overspeed the engine and do not
exceed 25 mph (40 km/h).
Proper operation of all-wheel drive vehicles
depends on tires of equal size, type and
circumference on each wheel. Any difference in
tire size can cause damage to the transfer case.
Because all-wheel drive provides improved
traction, there is a tendency to exceed safe turning
and stopping speeds. Do not go faster than road
conditions permit.
For additional information on the appropriate use
of each transfer case mode position, see the
information below:
AWD LOW
All-Wheel Drive Low Range – This range provides
low speed all-wheel drive. Locks the front and rear
driveshafts together forcing the front and rear
wheels to rotate at the same speed. Additional
traction and maximum pulling power for loose,
slippery road surfaces only. Do not exceed 25 mph
(40 km/h).
WARNING!
Always engage the parking brake when powering
down the vehicle if the “SERV AWD Warning
Light” is illuminated. Not engaging the parking
brake may allow the vehicle to roll which may
cause personal injury.
4

21_WD_OM_EN_USC_t.book Page 113

114STARTING AND OPERATING
NEUTRAL (N)
This range disengages both the front and rear
driveshafts from the powertrain. To be used for flat
towing behind another vehicle Ú page 153.
SHIFTING PROCEDURE
NOTE:
If any of the requirements to select a new
transfer case position have not been met, the
transfer case will not shift. The position indi -
cator light for the previous position will remain
on and the newly selected position indicator
light will continue to flash until all the require -
ments for the selected position have been met.
To retry a shift: return the control switch back to
the original position, make certain all shift
requirements have been met, wait five seconds
and try the shift again.
If all the requirements to select a new transfer
case position have been met, the current posi -
tion indicator light will turn off, the selected posi -
tion indicator light will flash until the transfer
case completes the shift. When the shift is
complete, the position indicator light for the
selected position will stop flashing and remain
on.
AWD AUTO To AWD LOW
NOTE:When shifting into or out of AWD LOW some gear
noise may be heard. This noise is normal and is not
detrimental to the vehicle or occupants.
Shifting can be performed with the vehicle rolling
2 to 3 mph (3 to 5 km/h) or completely stopped.
Use either of the following procedures:
Preferred Procedure

1. With the engine running, slow the vehicle to 2 to 3 mph (3 to 5 km/h).

2. Shift the transmission into NEUTRAL.
3. While still rolling, push the AWD LOW control switch.
4. After the AWD LOW position indicator light is on (not flashing), shift the transmission back into
gear. Alternate Procedure

1. Bring the vehicle to complete stop.

2. With the ignition in ON/RUN position and
engine running, shift the transmission to
NEUTRAL.
3. Push the AWD LOW control switch.
4. After the AWD LOW position indicator light is on (not flashing), shift the transmission back into
gear.NOTE:
If steps 1 or 2 of either the “Preferred” or “Alter -
nate Procedure” are not satisfied prior to
attempting the shift or if they no longer are
being met while the shift attempt is in process,
the desired position indicator light will flash
continuously while the original position indicator
light is on, until all requirements have been met.
The ignition switch must be in the ON/RUN posi -
tion for a shift to take place and for the position
indicator lights to be operable. If the ignition
switch is not in the ON/RUN position, then the
shift will not take place and no position indicator
lights will be on or flashing.
N (Neutral) Shift Procedure
For information regarding the transfer case N
(Neutral) shift procedure, see Ú page 154.
WARNING!
You or others could be injured or killed if you
leave the vehicle unattended with the transfer
case in the NEUTRAL position without first fully
engaging the parking brake. The transfer case
NEUTRAL position disengages both the front and
rear drive shafts 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.

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STARTING AND OPERATING117
POWER STEERING
The electric power steering system will provide
increased vehicle response and ease of
maneuverability. The power steering system
adapts to different driving conditions and adjusts
accordingly.
Alternate electric power steering efforts can be
selected through the Uconnect System
Úpage 159.
If the Electric Power Steering warning icon is
displayed and the “SERVICE POWER STEERING” or
the “POWER STEERING ASSIST OFF – SERVICE
SYSTEM” message is displayed within the
instrument cluster display, this indicates the
vehicle needs to be taken to the dealer for service
Ú page 91.
NOTE:
Even if the power steering assistance is no
longer operational, it is still possible to steer the
vehicle. Under these conditions there will be a
substantial increase in steering effort, espe -
cially at low speeds and during parking maneu -
vers.
If the condition persists, see an authorized
dealer for service.
If the Steering icon is displayed and the “POWER
STEERING SYSTEM OVER TEMP” message is
displayed on the instrument cluster screen, this
indicates an over temperature condition in the
power steering system. Once driving conditions are
safe, pull over and let the vehicle idle for a few
moments until the icon and message turn off.
STOP/START SYSTEM — IF EQUIPPED
The Stop/Start function is developed to reduce
fuel consumption. The system will stop the engine
automatically during a vehicle stop if the required
conditions are met. Releasing the brake pedal or
pressing the accelerator pedal will automatically
re-start the engine. This vehicle has been upgraded with a heavy duty
starter, enhanced battery, and other upgraded
engine parts, to handle the additional engine
starts.
AUTOSTOP MODE
The Stop/Start feature is enabled after every
normal customer engine start. At that time, the
system will go into STOP/START READY.
To Activate The Autostop Mode, The Following
Must Occur:
The system must be in STOP/START READY
state. A STOP/START READY message will be
displayed in the instrument cluster display
within the Stop/Start section Ú
page 83.
The vehicle must be completely stopped.
The gear selector must be in a forward gear and
the brake pedal pressed.
The engine will shut down, the tachometer will
move to the zero position and the Stop/Start
telltale will illuminate indicating you are in
Autostop. Customer settings will be maintained
upon return to an engine running condition.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.
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