Jeep Grand Cherokee L (2023 year). Manual in english — page 8
124
STARTING AND OPERATING
(Continued)
NOTE:
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.
If exceptional circumstances should make it
necessary to engage the parking brake while the
vehicle is in motion, maintain upward pressure on
the EPB switch for as long as engagement is
desired. The BRAKE telltale light will illuminate,
and a continuous chime will sound. The rear stop
lamps will also be illuminated automatically while
the vehicle remains in motion.
To disengage the parking brake while the vehicle is
in motion, release the switch. If the vehicle is
brought to a complete stop using the parking
brake, when the vehicle reaches approximately
3 mph, (5 km/h) the parking brake will remain
engaged.
In the unlikely event of a malfunction of the EPB
system, a yellow EPB Warning Light will illuminate.
This may be accompanied by the BRAKE telltale
light flashing. In this event, urgent service of the
EPB system is required. Do not rely on the parking
brake to hold the vehicle stationary.
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 exiting the vehicle, always turn the igni
-
tion OFF, secure the key fob, 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.
Do not leave the key fob in or near the vehicle,
or in a location accessible to children, and do
not leave a vehicle equipped with Keyless
Enter ‘n Go™ in the ON/RUN position. 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 System 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!
Driving the vehicle with the parking brake
engaged, or repeated use of the parking brake
to slow the vehicle may cause serious damage to
the brake system. Be sure the parking brake is
fully disengaged before driving; failure to do so
can lead to brake failure and a collision.
STARTING AND OPERATING
125
A
UTO
P
ARK
B
RAKE
The EPB can be programmed to be applied
automatically whenever the vehicle is at a
standstill and the transmission is placed in PARK.
Auto Park Brake is enabled and disabled by
customer selection through the customer
programmable features section of the Uconnect
Any single Auto Park Brake application can be
bypassed by pushing the EPB switch to the release
position while the transmission is placed in PARK.
S
AFE
H
OLD
SafeHold is a safety feature of the EPB system that
will place the transmission in PARK, and engage
the parking brake automatically if the vehicle is left
unsecured while the ignition is in ON/RUN.
The parking brake will automatically engage if all of
the following conditions are met:
The vehicle is at a standstill.
There is no attempt to press the brake pedal or
accelerator pedal.
The seat belt is unbuckled.
The driver door is open.
SafeHold can be temporarily bypassed by pushing
the EPB switch while the driver door is open. Once
manually bypassed, SafeHold will be enabled
again once the vehicle reaches 12 mph (20 km/h)
or the ignition is turned to the OFF position and
back to ON again.
H
OLD
‘N G
O
— I
F
E
QUIPPED
Hold ‘N Go is a comfort feature that allows the
driver to remove their foot from the brake pedal
once the vehicle has come to a stop. The vehicle
must be held at a standstill for a predetermined
amount of time by hydraulic braking. The EPB will
then engage and continue to hold the vehicle at a
stop until the driver applies the accelerator pedal.
Hold ‘N Go can be activated or deactivated by
pushing the HOLD button located on the switch
bank.
HOLD Switch
The following conditions must be met for Hold ‘N
Go to activate:
Driver’s door is closed
Driver's seat belt is fastened
Vehicle is at a standstill
Forward gear is selected
ACC is not engaged
EPB is not applied
ParkSense Active Park Assist System auto
parking maneuver is not activated
B
RAKE
M
AINTENANCE
M
ODE
We recommend having your brakes serviced by an
authorized dealer. You should only make repairs
for which you have the knowledge and the right
equipment. You should only enter Brake
Maintenance Mode during brake service.
When servicing your rear brakes, it may be
necessary for you or your technician to push the
rear piston into the rear caliper bore. With the EPB
system, this can only be done after retracting the
EPB actuator. Fortunately, actuator retraction can
be done easily by entering the Brake Maintenance
Mode through the Uconnect Settings in your
vehicle. This menu-based system will guide you
through the steps necessary to retract the EPB
actuator in order to perform rear brake service.
4
126
STARTING AND OPERATING
(Continued)
(Continued)
Maintenance Mode has requirements that must be
met in order to be activated:
The vehicle must be at a standstill.
The parking brake must be unapplied.
The transmission must be in PARK or NEUTRAL.
While in Maintenance Mode, the EPB Warning
Light will flash continuously while the ignition is
ON.
When brake maintenance work is complete, the
following steps must be followed to reset the
parking brake system to normal operation:
Ensure the vehicle is at a standstill.
Press the brake pedal with moderate force.
Apply the EPB Switch.
AUTOMATIC TRANSMISSION
You must press and hold the brake pedal while
shifting out of PARK.
WARNING!
You can be badly injured working on or around a
motor vehicle. Do only that service work for
which you have the knowledge and the right
equipment. If you have any doubt about your
ability to perform a service job, take your vehicle
to a competent mechanic.
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 position, the transmis
-
sion is locked in PARK, securing the vehicle
against unwanted movement.
When exiting the vehicle, always make sure
the ignition is in the OFF position, remove the
key fob from the vehicle, and lock the vehicle.
WARNING!
STARTING AND OPERATING
127
I
GNITION
P
ARK
I
NTERLOCK
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 position. 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 position.
NOTE:
The transmission will NOT shift out of the PARK
position if the engine is not running even when the
brakes are applied. Ensure that the transmission is
in PARK, and the ignition is OFF (not in the ON/RUN
position) before exiting the vehicle.
B
RAKE
/T
RANSMISSION
S
HIFT
I
NTERLOCK
(BTSI) S
YSTEM
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.
8-S
PEED
A
UTOMATIC
T
RANSMISSION
The transmission is controlled using a rotary
electronic gear selector located on the center
console. The transmission gear range (PRND) is
displayed both above the gear selector and in the
instrument cluster. To select a gear range, simply
rotate the gear selector. You must press the brake
pedal to shift the transmission out of PARK (or
NEUTRAL, when the vehicle is stopped or moving at
low speeds). To shift past multiple gear ranges at
once (such as PARK to DRIVE), simply rotate the
gear selector to the appropriate detent. Select the
DRIVE range for normal driving.
NOTE:
In the event of a mismatch between the gear
selector position and the actual transmission gear
(for example, driver selects PARK while driving),
the position indicator will blink continuously until
the selector is returned to the proper position, or
the requested shift can be completed.
The electronically controlled transmission adapts
its shift schedule based on driver inputs, along
with environmental and road conditions. The
transmission electronics are self-calibrating;
therefore, the first few shifts on a new vehicle may
be somewhat abrupt. This is a normal condition,
and precision shifts will develop within a few
hundred miles (kilometers).
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 ON/RUN position.
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!
4
128
STARTING AND OPERATING
Only shift from DRIVE to PARK or REVERSE when
the accelerator pedal is released and the vehicle is
stopped. Be sure to keep your foot on the brake
pedal when shifting between these gears.
The transmission gear selector has only PARK,
REVERSE, NEUTRAL, and DRIVE positions. Manual
downshifts can be made using the steering wheel
mounted paddle shifters. Pulling the -/+ switches
(on the steering wheel) while in the DRIVE position
will select the highest available transmission gear,
and will display that gear limit in the instrument
cluster as 1, 2, 3, etc. Some models will display
both the selected gear limit, and the actual current
gear, while in AutoStick mode.
Transmission Gear Selector
Gear Ranges
Do not press the accelerator pedal when shifting
from PARK (P) or NEUTRAL (N) into another gear
range.
NOTE:
After selecting any gear range, wait a moment to
allow the selected gear to engage before acceler
-
ating. This is especially important when the engine
is cold.
PARK (P)
This range supplements the parking brake by
locking the transmission. The engine can be
started in this range. Never attempt to use PARK
while the vehicle is in motion. Apply the parking
brake when exiting the vehicle in this range.
When parking on a hill, apply the parking brake
before shifting the transmission to PARK. As an
added precaution, turn the front wheels toward the
curb on a downhill grade and away from the curb
on an uphill grade.
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.
NOTE:
On four-wheel drive vehicles be sure that the
transfer case is in a drive position.
The following indicators should be used to ensure
that you have properly engaged the transmission
into the PARK position:
When shifting into PARK, rotate the shifter all
the way counterclockwise until the indicator
displays PARK.
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.
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.
STARTING AND OPERATING
129
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
page 130. 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.
Transmission Limp Home Mode
Transmission function is monitored electronically
for abnormal conditions. If a condition is detected
that could result in transmission damage,
Transmission Limp Home Mode is activated. In this
mode, the transmission may operate only in
certain gears, or may not shift at all. Vehicle
performance may be severely degraded and the
engine may stall. In some situations, the
transmission may not re-engage if the engine is
turned off and restarted. The Malfunction Indicator
Light (MIL) may be illuminated. A message in the
instrument cluster will inform the driver of the
more serious conditions, and indicate what actions
may be necessary.
In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:
NOTE:
In cases where the instrument cluster message
indicates the transmission may not re-engage after
engine shutdown, perform this procedure only in a
desired location (preferably, at an authorized
dealer).
1. Stop the vehicle.
2. Shift the transmission into PARK (P), if
possible. If not, shift the transmission to
NEUTRAL (N).
3. Push and hold the ignition switch until the
engine turns off.
4. Wait approximately 30 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the
problem is no longer detected, the
transmission will return to normal operation.
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 see
For Towing A Disabled Vehicle see
4
130
STARTING AND OPERATING
NOTE:
Even if the transmission can be reset, we
recommend that you visit an authorized dealer at
your earliest possible convenience. An authorized
dealer has diagnostic equipment to assess the
condition of your transmission.
If the transmission cannot be reset, authorized
dealer service is required.
AutoStick — If Equipped
AutoStick is a driver-interactive transmission
feature providing manual shift control, giving you
more control of the vehicle. AutoStick allows you to
maximize engine braking, eliminate undesirable
upshifts and downshifts, and improve overall
vehicle performance. This feature can also provide
you with more control during passing, city driving,
cold slippery conditions, mountain driving, trailer
towing, and many other situations.
AutoStick Paddle Shifters
Operation
To activate AutoStick mode, tap one of the paddle
shifters on the steering wheel. Tapping the (-)
paddle shifters to enter AutoStick mode will
downshift the transmission to the next lower gear,
while tapping (+) to enter AutoStick mode will
retain the current gear. The current transmission
gear will be displayed in the instrument cluster. In
AutoStick mode, you can use the paddle shifters,
to manually shift the transmission. Tapping the (-)
paddle shifters, will downshift the transmission to
the next lower gear. Tapping the (+) paddle
shifters, will upshift the transmission to the next
highest gear.
In AutoStick mode, the transmission will shift up or
down when (+/-) is manually selected by the driver,
unless an engine lugging or overspeed condition
would result. It will remain in the selected gear
until another upshift or downshift is chosen, except
as follows.
The transmission will automatically downshift
as the vehicle slows (to prevent engine lugging)
and will display the current gear.
The transmission will automatically downshift to
FIRST gear when coming to a stop. After a stop,
the driver should manually upshift (+) the trans
-
mission as the vehicle is accelerated.
You can start out, from a stop, in FIRST or
SECOND gear. Tapping (+) at a stop will allow
starting in SECOND gear. Starting out in
SECOND gear can be helpful in snowy or icy
conditions.
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, 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. The
vehicle will force an upshift, but it will stay in
AutoStick mode.
To disengage AutoStick mode, push and hold the
(+) paddle shifters until "D" is once again 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.
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.
STARTING AND OPERATING
131
SPORT MODE — IF EQUIPPED
SPORT Mode
Your vehicle is equipped with a Sport Mode
feature. When activated, the engine and
transmission, steering and suspension (if
equipped with air suspension) are all set to their
SPORT settings. Sport Mode will provide improved
throttle response and modified transmission shift
points as well as firmer suspension and steering
for an enhanced driving experience. This mode
may be activated and deactivated by pushing the
SPORT ON button on the instrument panel switch
bank or by selecting SPORT mode using the
Selec-Terrain switch (if equipped). When Sport
Mode has been activated an indicator light will
illuminate in the instrument cluster.
FOUR-WHEEL DRIVE OPERATION
The driveline is equipped with a Front Axle
Disconnect (FAD) for the one-speed and two-speed
drivelines. The FAD operation is fully automated
and controlled by the Drivetrain Control Module
(DTCM). It does not require any customer input to
engage. The FAD is set to connect, disconnect and
provide 4WD function based on certain set
conditions detected by the DTCM, including but not
limited to the following:
Ambient temperature
Wipers
Selec-Terrain Mode selection
Wheel-slip detection
The FAD is actuated only in 4WD HI range and
stays connected for 4WD LOW.
Q
UADRA
-T
RAC
I O
PERATING
I
NSTRUCTIONS
/P
RECAUTIONS
—
I
F
E
QUIPPED
The Quadra-Trac I is a single-speed (HI range only)
transfer case, which enables on-demand
four-wheel drive with active torque management.
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:
The Quadra-Trac I system is not appropriate for
conditions where 4WD LOW range is recom
-
Q
UADRA
-T
RAC
II O
PERATING
I
NSTRUCTIONS
/P
RECAUTIONS
—
I
F
E
QUIPPED
The Quadra-Trac II system comes equipped with a
customer-selectable electronically operated
on-demand transfer case with active torque
management in all driveable ranges. This transfer
case provides the following operating range
positions:
4WD HI
N (NEUTRAL)
4WD LOW
When additional tractive effort and torque are
required, the 4WD LOW position can be used. The
4WD LOW position is intended for loose, slippery
road surfaces only. Driving in the 4WD LOW
position on dry, hard-surfaced roads may cause
increased tire wear and damage to driveline
components.
When operating your vehicle in 4WD LOW, the
engine speed is approximately three times that of
the normal 4WD HI position at a given road speed.
Take care not to overspeed the engine and do not
exceed 25 mph (40 km/h).
4
132
STARTING AND OPERATING
Proper operation of four-wheel drive vehicles
depends on tires of equal size, type, and
circumference on each wheel. Any difference will
adversely affect performance and function of the
transfer case.
Because four-wheel drive provides improved
traction, there is a tendency to exceed safe turning
and stopping speeds. Do not go faster than road
conditions permit.
S
HIFT
P
OSITIONS
For additional information on the appropriate use
of each four-wheel drive system mode position,
see the following:
4WD HI
This is the default operating range for daily use.
N (NEUTRAL)
This range disengages the driveline from the
powertrain. It is used for towing your vehicle
4WD LOW
This range is for low speed four-wheel drive. It
provides an additional gear reduction which allows
for increased torque to be delivered to both the
front and rear wheels while providing maximum
pulling power for loose, slippery road surfaces only.
Do not exceed 25 mph (40 km/h).
S
HIFTING
P
ROCEDURES
4WD HI To 4WD LOW
With the vehicle at speeds of 0 to 3 mph (0 to
5 km/h), the ignition switch in the ON/RUN
position and the engine running, shift the
transmission into NEUTRAL (N), push and hold the
4WD LOW button until the 4WD LOW Indicator
Light begins to flash in the instrument cluster.
When the shift is complete, the 4WD LOW Indicator
Light will remain on solid.
4WD LOW Button
NOTE:
If shift conditions/interlocks are not met, a “To
Complete 4WD Shift Put Transmission In Neutral”
or a “To Complete 4WD Shift Speed Must Be Below
3 MPH” or a “To Complete 4WD Shift Allow Engine
To Return To Idle” message will flash from the
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 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.
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 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.
STARTING AND OPERATING
133
4WD LOW To 4WD HI
With the vehicle at speeds of 0 to 3 mph (0 to
5 km/h), the ignition switch in the ON position or
the engine running, shift the transmission into
NEUTRAL (N), push and hold the 4WD LOW button
until the 4WD LOW Indicator Light begins to flash
in the instrument cluster. When the shift is
complete, the 4WD LOW Indicator Light will
remain off.
NOTE:
If shift conditions/interlocks are not met —
“4WD Shift Cancelled” or “4WD Shift Aborted/
Retry Shift” message will be displayed on the
instrument cluster. To reattempt shift, put the
transmission in NEUTRAL (N) and push and hold
the 4WD LOW button.
If shift conditions/interlocks are not met, a “To
Complete 4WD Shift Put Transmission In
Neutral” or a “To Complete 4WD Shift Speed
Must Be Below 3 MPH” or a “To Complete 4WD
Shift Allow Engine To Return To Idle” message
will flash from the instrument cluster display
Shifting into or out of 4WD LOW is possible with
the vehicle completely stopped; however, diffi
-
culty may occur due to the mating clutch teeth
not being properly aligned. Several attempts
may be required for clutch teeth alignment and
shift completion to occur. The preferred
method is with the vehicle rolling 0 to 3 mph
(0 to 5 km/h). If the vehicle is moving faster
than 3 mph (5 km/h), the transfer case will not
allow the shift.
Q
UADRA
-T
RAC
II S
YSTEM
—
I
F
E
QUIPPED
The Quadra-Trac II System features two torque
transfer couplings. The couplings include an
Electronic Limited-Slip Differential (ELSD) rear axle
and the Quadra-Trac II transfer case. The ELSD
axle is fully automatic and requires no driver input
to operate. Under normal driving conditions, the
unit functions as a standard axle, balancing torque
evenly between left and right wheels. With a
traction difference between left and right wheels,
the coupling will sense a speed difference. As one
wheel begins to spin faster than the other, torque
will automatically transfer from the wheel that has
less traction, to the wheel that has traction. While
the transfer case and axle coupling differ in design,
their operation is similar. Follow the Quadra-Trac II
transfer case shifting information, preceding this
section, for shifting this system.
E
LECTRONIC
S
WAY
B
AR
D
ISCONNECT
—
I
F
E
QUIPPED
Your vehicle may be equipped with an electronic
disconnecting stabilizer/sway bar. This system
allows greater front suspension travel in off-road
situations.
This system is controlled by the SWAY BAR switch
located on the instrument panel (to the right of the
gear selector).
SWAY BAR Switch
4
134
STARTING AND OPERATING
Push the SWAY BAR switch to activate the system.
Push the switch again to deactivate the system.
The Sway Bar Indicator Light (located in the
instrument cluster) will illuminate when the bar is
disconnected. The Sway Bar Indicator Light will
flash during activation transition, or when
activation conditions are not met. The stabilizer/
sway bar should remain in on-road mode during
normal driving conditions.
NOTE:
If the electronic disconnecting stabilizer/sway bar
is disconnected and then driven at speeds above
18 mph (29 km/h), the system will reconnect for
driver safety. The Sway Bar Indicator Light will
continue to flash as the system waits for the driver
to slow the vehicle and will automatically
disconnect again unless the driver cancels the
request with the SWAY BAR switch. The system can
cancel the pending disconnect request if drivetrain
changes are made (e.g. 4WD HI to 4WD LOW)
based on road conditions.
To disconnect the stabilizer/sway bar, shift to 4WD
LOW and push the SWAY BAR switch to obtain the
page 131. The Sway Bar
Indicator Light will flash until the stabilizer/sway
bar has been fully disconnected.
NOTE:
The stabilizer/sway bar may be torque locked due
to left and right suspension height differences.
This condition is due to driving surface differences
or vehicle loading. In order for the stabilizer/sway
bar to disconnect/reconnect, the right and left
halves of the bar must be aligned. This alignment
may require that the vehicle be driven onto level
ground or rocked from side to side.
To return to on-road mode, push the SWAY BAR
switch again.
SELEC-TERRAIN — IF EQUIPPED
S
ELEC
-T
ERRAIN
M
ODE
S
ELECTION
Selec-Terrain combines the capabilities of the
vehicle control systems, along with driver input, to
provide the best performance for all terrains. Tap
the toggle up or down to cycle through the
positions.
WARNING!
Ensure the stabilizer/sway bar is reconnected
before driving on hard surfaced roads or at
speeds above 18 mph (29 km/h); a
disconnected stabilizer/sway bar may contribute
to the loss of vehicle control, which could result
in serious injury. Under certain circumstances,
the front stabilizer/sway bar enhances vehicle
stability and assists with vehicle control. The
system monitors vehicle speed and will attempt
to reconnect the stabilizer/sway bar at speeds
over 18 mph (29 km/h). This is indicated by a
flashing or solid Sway Bar Indicator Light. Once
vehicle speed is reduced below 14 mph
(22 km/h), the system will once again attempt to
return to off-road mode.
WARNING!
If the stabilizer/sway bar will not return to
on-road mode, the Sway Bar Indicator Light will
flash in the instrument cluster and vehicle
stability may be reduced. Do not attempt to drive
the vehicle over 18 mph (29 km/h). Driving
faster than 18 mph (29 km/h) with a
disconnected stabilizer/sway bar may contribute
to the loss of vehicle control, which could result
in serious injury.
STARTING AND OPERATING
135
Selec-Terrain
Selec-Terrain consists of the following positions:
ROCK – Off-road calibration is only available in
4WD LOW. The vehicle is raised (if equipped
with air suspension) for improved ground clear
-
ance. Traction-based tuning with improved
steerability for use on high traction off-road
surfaces. Use for low speed obstacles such as
large rocks, deep ruts, etc. If equipped with air
suspension, the vehicle level will change to
Off-Road 2 (OR2). If the Selec-Terrain switch is
in ROCK mode, and the transfer case is
switched from 4WD LOW to 4WD HI, the
Selec-Terrain system will return to AUTO.
SAND/MUD – Off-road calibration for use on low
traction surfaces such as mud or sand. Driveline
is maximized for traction. Some binding may be
felt on less forgiving surfaces. The electronic
brake controls are set to limit traction control
management of throttle and wheel spin. If
equipped with air suspension, the level will
change to Off-Road 1 (OR1).
SNOW – Tuning set for additional stability in
inclement weather. Use on and off-road on
loose traction surfaces such as snow. When in
SNOW mode (depending on certain operating
conditions), the transmission may use SECOND
gear (rather than FIRST gear) during launches,
to minimize wheel slippage. If equipped with air
suspension, the default ride height for SNOW is
Normal Ride Height (NRH).
AUTO – Fully automatic full-time four-wheel
drive operation can be used on and off-road.
Balances traction with seamless steering feel to
provide improved handling and acceleration
over two-wheel drive vehicles. If the suspension
is already in OR1 or OR2, the vehicle will not
lower to NRH with Auto selection as to maintain
capability.
NOTE:
If equipped with air suspension, the level will only
raise to Normal Ride Height (NRH) in the AUTO
mode. If the vehicle is in OR1 or OR2 the height will
not lower automatically until defined speed
thresholds are exceeded.
SPORT – This mode is only available in 4WD HI.
When activated, the engine and transmission,
steering and suspension (if equipped with air
suspension) are all set to their SPORT settings.
SPORT mode will provide improved throttle
response and modified transmission shift
points as well as firmer suspension and
steering, the vehicle will also be dropped to Aero
Height for an enhanced driving experience.
When SPORT mode has been activated, an indi
-
cator light will illuminate in the instrument
cluster.
I
NSTRUMENT
C
LUSTER
D
ISPLAY
M
ESSAGES
When the appropriate conditions exist, a message
will appear in the instrument cluster
1 — Selec-Terrain Positions
2 — Selec-Terrain Toggle
4
136
STARTING AND OPERATING
QUADRA-LIFT — IF EQUIPPED
D
ESCRIPTION
The Quadra-Lift Air Suspension system provides
full time load leveling capability along with the
benefit of vehicle height adjustment by a toggle
switch. The vehicle will automatically raise and
lower the ride height to adapt to the appropriate
driving conditions. At higher speeds, the vehicle
will lower to an aerodynamic ride height and when
operating in off-road modes, the vehicle will raise
the ride height accordingly. The buttons near the
terrain switch in the center console area can be
used to set preferred ride height to match the
appropriate conditions.
Quadra-Lift Switch
Off-Road 2 (OR2) (Non-TrailHawk raises the
vehicle approximately 2.4 inches [60 mm])
(TrailHawk raises the vehicle approximately
3.0 inches [75 mm]) – This position is intended
for off-road use only where maximum ground
clearance is required. To enter OR2, push the
UP button twice from the NRH position or once
from the OR1 position while vehicle speed is
below 20 mph (32 km/h). While in OR2, if the
vehicle speed exceeds 25 mph (40 km/h) the
vehicle height will be automatically lowered to
Off-Road 1 (OR1) (Raises the vehicle approxi
-
mately 1.6 inches [40 mm]) – This is the
primary position for all off-road driving until OR2
is needed. Push the UP button once from the
NRH position while the vehicle speed is below
38 mph (61 km/h). When in the OR1 position, if
the vehicle speed remains between 40 mph
(64 km/h) and 50 mph (80 km/h) for greater
than 20 seconds or if the vehicle speed exceeds
50 mph (80 km/h), the vehicle will be automat
-
1 — Off-Road 2 Ride Height Indicator Lamp
(Customer Selectable)
2 — Off-Road 1 Ride Height Indicator Lamp
(Customer Selectable)
3 — Normal Ride Height Indicator Lamp
(Customer Selectable)
4 — Aero Ride Height Indicator Lamp
(Customer Selectable)
5 — Entry/Exit Ride Height Indicator Lamp
(Customer Selectable)
6 — Toggle Switch
STARTING AND OPERATING
137
Normal Ride Height (NRH) 0.0 inches (0 mm) –
This is the standard position of the suspension
and is meant for normal driving.
Aero Height (Lowers the vehicle approximately
-0.8 inches [-21 mm] Front and -1.0 inches
[-25 mm] Rear) – This position provides
improved aerodynamics by lowering the vehicle.
The vehicle will automatically enter Aero when
the vehicle speed remains between 62 mph
(100 km/h) and 66 mph (106 km/h) for greater
than 20 seconds or if the vehicle speed exceeds
66 mph (106 km/h). The vehicle will return to
NRH from Aero if the vehicle speed remains
between 30 mph (48 km/h) and 35 mph
(56 km/h) for greater than 20 seconds or if the
vehicle speed falls below 30 mph (48 km/h).
The vehicle will enter Aero, regardless of vehicle
speed if the vehicle is in SPORT mode.
Entry/Exit Height (Lowers the vehicle approxi
-
mately -1.8 inches [-46 mm] Front and
-2.0 inches [-50 mm] Rear) – This position
lowers the vehicle for easier passenger entry
and exit as well as lowering the rear of the
vehicle for easier loading and unloading of
cargo. To enter Entry/Exit, push the DOWN
button twice from NRH while the vehicle speed
is below 4 mph (6 km/h). To exit Entry/Exit,
push the UP button twice while in Entry/Exit or
drive the vehicle over 6 mph (10 km/h).
NOTE:
Automatic lowering of the vehicle into Entry/Exit
can be enabled through the Uconnect Touch
-
screen Radio by selecting the “Auto Entry/Exit”
setting. If this feature is enabled, the vehicle will
only lower if the gear selector is in PARK, the
terrain switch is in AUTO, the transfer case is in
AUTO and the vehicle level is either in Normal or
Aero Height. The vehicle will not automatically
lower to Entry/Exit height if the air suspension level
is in OR2 or OR1. If the vehicle is equipped with
Intrusion Theft Module (ITM), the lowering will be
suppressed when the ignition is switched OFF and
the door is open to prevent setting the alarm off.
The Selec-Terrain system will automatically change
the vehicle to the proper height based on the
position of the Selec-Terrain switch. The height can
be changed from the default Selec-Terrain setting
by normal use of the air suspension buttons
The system requires that the engine be running for
all changes. When lowering the vehicle all of the
doors must be closed. If a door is opened at any
time while the vehicle is lowering the change will
not be completed until the open door(s) is/are
closed.
The Quadra-Lift Air Suspension system uses a
lifting and lowering pattern which keeps the
headlights from incorrectly shining into oncoming
traffic. When raising the vehicle, the rear of the
vehicle will move up first and then the front. When
lowering the vehicle, the front will move down first
and then the rear.
After the engine is turned off, it may be noticed that
the air suspension system operates briefly; this is
normal. The system is correcting the position of the
vehicle to ensure a proper appearance.
To assist with changing a spare tire, the
Quadra-Lift Air Suspension system has a feature
which allows the automatic leveling to be disabled
Default Ride Height
Select Aero Height or Normal Ride Height as the
default for all vehicle speeds and operation.
This is the selected height that the suspension
will level for speed changes (e.g. raising from
Entry/Exit Height at speed, lowering from Off
Road Height at speed, etc.).
Default ride height can be changed by manually
adjusting the ride height switch to Normal Ride
Height or Aero Height and staying in the
selected height for 2.5 seconds. It will be stored
as the default ride height and the height will be
maintained until a new default ride height is
selected.
If equipped with a touchscreen radio, all enabling/
disabling of air suspension features must be done
4
138
STARTING AND OPERATING
A
IR
S
USPENSION
M
ODES
The Air Suspension system has multiple modes to
protect the system in unique situations:
Tire/Jack Mode
To assist with changing a spare tire, the air
suspension system has a feature which allows the
automatic leveling to be disabled
NOTE:
This mode is intended to be enabled with the
ignition on.
Auto Entry/Exit Mode
To assist in entering and exiting the vehicle, the air
suspension system has a feature which
automatically lowers the vehicle to Entry/Exit ride
NOTE:
This mode is intended to be enabled with the
ignition on.
Transport Mode
To assist with flat bed towing, the air suspension
system has a feature which will put the vehicle into
Entry/Exit height and disable the automatic load
NOTE:
This mode is intended to be enabled with the
ignition on.
Suspension Display Messages Mode
The “Suspension Display Messages” setting allows
you to only display suspension warnings
NOTE:
This mode is intended to be enabled with the
ignition on.
Wheel Alignment Mode
Before performing a wheel alignment this mode
NOTE:
This mode is intended to be enabled with the
ignition on.
If equipped with a touchscreen radio, all enabling/
disabling of air suspension features must be done
I
NSTRUMENT
C
LUSTER
D
ISPLAY
M
ESSAGES
When the appropriate conditions exist, a message
will appear in the instrument cluster
O
PERATION
The indicator lamps 1 through 5 will illuminate to
show the current position of the vehicle. Flashing
indicator lamps will show a position which the
system is working to achieve. When raising, if
multiple indicator lamps are flashing while raising,
the highest flashing indicator lamp is the position
the system is working to achieve. When lowering, if
multiple indicators are flashing while lowering, the
lowest solid indicator lamp is the position the
system is working to achieve.
Toggle up once will move the suspension one
position higher from the current position,
assuming all conditions are met (i.e. ignition on,
speed below threshold, etc). Toggle up can be
pushed multiple times. Each toggle up will raise
the requested level by one position up to a
maximum position of OR2 or the highest position
allowed based on current conditions (i.e. vehicle
speed, etc).
Toggle down once will move the suspension one
position lower from the current level, assuming all
conditions are met (i.e. ignition on, doors closed,
speed below threshold, etc). Toggle down can be
WARNING!
The air suspension system uses a high pressure
volume of air to operate the system. To avoid
personal injury or damage to the system, see an
authorized dealer for service.
STARTING AND OPERATING
139
pushed multiple times. Each toggle down will lower
the requested level by one position down to a
minimum of Entry/Exit Height or the lowest
position allowed based on current conditions (i.e.
vehicle speed, etc.)
Automatic height changes will occur based on
vehicle speed and the current vehicle height. The
indicator lamps and instrument cluster display
messages will operate the same for automatic
changes and user requested changes.
Off-Road 2 (OR2) Ride Height – Indicator lamps
1 through 5 will be illuminated.
Off-Road 1 (OR1) Ride Height – Indicator lamps
2 through 5 will be illuminated.
Normal Ride Height (NRH) – Indicator lamps 3
through 5 will be illuminated.
Aero Ride Height– Indicator lamps 4 and 5 will
be illuminated.
Entry/Exit Ride Height– Indicator lamp 5 will be
illuminated.
Transport Mode – Indicator lamp 5 will be illumi
-
nated. Driving above 3 mph (5 km/h) or dese
-
lecting setting in the radio will disable Transport
Mode.
Tire/Jack Mode – Indicator lamps 3 through
5 will be illuminated. Driving above 5 mph
(8 km/h) or deselecting setting in the radio will
disable Tire/Jack Mode.
Wheel Alignment Mode – Indicator lamps 3
through 5 will be illuminated. Driving above
5 mph (8 km/h) or deselecting setting in the
radio will disable Wheel Alignment Mode.
FUEL SAVER TECHNOLOGY 5.7L ONLY —
IF EQUIPPED
This feature offers improved fuel economy by
shutting off four of the engine's eight cylinders
during light load and cruise conditions. The system
is automatic with no driver inputs or additional
driving skills required.
NOTE:
This system may take some time to return to full
functionality after a battery disconnect.
POWER STEERING
The electric power steering system provides
enhanced vehicle response and increased ease of
maneuverability in tight spaces. The power
steering system adapts to different driving
conditions. If the electric power steering system
experiences a fault that prevents it from providing
assistance, you will still have the ability to steer the
vehicle manually.
NOTE:
Alternate electric power steering efforts (Normal,
Comfort and Sport) can be selected through the
page 204. If SPORT mode is
selected, steering efforts are optimized for sporty
driving.
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
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.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.
4
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