2023 JEEP GRAND CHEROKEE automatic transmission

STARTING AND OPERATING133
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
Úpage 98.

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.

QUADRA-TRAC II SYSTEM —
I
F EQUIPPED
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.
ELECTRONIC SWAY BAR DISCONNECT —
I
F EQUIPPED
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

23_WL_OM_EN_USC_t.book Page 133

STARTING AND OPERATING135

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.
INSTRUMENT CLUSTER DISPLAY
M
ESSAGES
When the appropriate conditions exist, a message
will appear in the instrument cluster Ú page 98.
1 — Selec-Terrain Positions
2 — Selec-Terrain Toggle
4

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140STARTING AND OPERATING
If the Steering icon is displayed and the “Power
Steering System Over Temp” message is displayed
on the instrument cluster screen, they indicate
that extreme steering maneuvers may have
occurred which caused an over temperature
condition in the electric 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 designed 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 and if all
other conditions are met, can go into a STOP/
START AUTOSTOP ACTIVE Autostop mode. 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 98.
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.
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP
Prior to engine shut down, the system will check
many safety and comfort conditions to see if they
are fulfilled. Detailed information about the
operation of the Stop/Start system may be viewed
in the instrument cluster display Stop/Start
screen. In the following situations, the engine will
not stop:
Driver’s seat belt is not buckled.
Driver’s door is not closed.
Battery temperature is too warm or cold.
Battery charge is low.
The vehicle is on a steep grade.
Cabin heating or cooling is in process and an
acceptable cabin temperature has not been
achieved.
HVAC is set to full defrost mode at a high blower
speed.
HVAC is set to MAX A/C.
Engine has not reached normal operating
temperature.
The transmission is not in a forward gear.
Hood is open.
Brake pedal is not pressed with sufficient pres -
sure.
Accelerator pedal input.
Engine temperature is too high.
5 mph (8 km/h) threshold has not been
achieved from previous Autostop.
Steering angle is beyond threshold.
It may be possible for the vehicle to be driven
several times without the Stop/Start system going
into a STOP/START READY state under more
extreme conditions of the previously listed items.

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STARTING AND OPERATING141
TO START THE ENGINE WHILE IN
A
UTOSTOP MODE
While in a forward gear, the engine will start when
the brake pedal is released or the throttle pedal is
pressed. The transmission will automatically
re-engage upon engine restart.
Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:
The transmission selector is moved out of
DRIVE.
To maintain cabin temperature comfort.
HVAC is set to full defrost mode.
HVAC system temperature or fan speed is
manually adjusted.
Battery voltage drops too low.
Stop/Start OFF switch is pushed.
A Stop/Start system error occurs.
Steering angle is beyond threshold.
TO MANUALLY TURN OFF THE STOP/
S
TART SYSTEM

Stop/Start OFF Switch

Push the Stop/Start OFF switch (located on the
switch bank). The light on the switch will illuminate.
The “Stop/Start OFF” message will appear in the
instrument cluster display and the Autostop mode
will be disabled Ú page 98.
NOTE:The Stop/Start system will reset itself back to the
ON mode every time the ignition is turned OFF and
back ON.
TO MANUALLY TURN ON THE STOP/
S
TART SYSTEM
Push the Stop/Start OFF switch (located on the
switch bank). The light on the switch will turn off.
SYSTEM MALFUNCTION
If there is a malfunction in the Stop/Start system,
the system will not shut down the engine. A
“Service Stop/Start System” message and a yellow
Stop/Start telltale will appear in the instrument
cluster display Ú page 98.
If the “Service Stop/Start System” message
appears in the instrument cluster display, have the
system checked by an authorized dealer.
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194STARTING AND OPERATING

Seven-Pin Connector

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

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216MULTIMEDIA
Mirrors & Wipers
ParkView Backup Camera Delay This setting will add a timed delay to the ParkView Backup Camera when
shifting out of REVERSE.
ParkView Backup Camera Active Guidelines This setting will turn the ParkView Backup Camera Active Guidelines on or off.
Forward Facing Camera Guidelines This setting will turn the Forward Facing Camera Guidelines on or off.
Setting NameDescription
When the Mirrors & Wipers button is pressed on the touchscreen, the system displays the options related to the vehicle’s mirrors and wipers.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting NameDescription
Tilt Side Mirrors In Reverse This setting will tilt the outside side-view mirrors when the ignition is in the
ON/RUN position and the transmission gear selector is in the REVERSE
position. The mirrors will move back to their previous position when the
transmission is shifted out of REVERSE. The available settings are “On” and
“Off”.
Auto Folding Side Mirrors This setting will automatically fold and unfold the side-view mirrors when the
vehicle is turned off, the doors are locked, or the key fob button is pushed.
The available options are “On” and “Off”.
Rain Sensing Auto Wipers This setting will turn the Rain Sensing Auto Wipers on or off.
Headlights With Wipers This setting will turn the headlights on when the wipers are activated.

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SAFETY253
The ESC Activation/Malfunction Indicator Light
starts to flash as soon as the tires lose traction and
the ESC system becomes active. The ESC
Activation/Malfunction Indicator Light also flashes
when TCS is active. If the ESC Activation/
Malfunction Indicator Light begins to flash during
acceleration, ease up on the accelerator and apply
as little throttle as possible. Be sure to adapt your
speed and driving to the prevailing road conditions. The ESC OFF Indicator Light indicates the
customer has elected to have the
Electronic Stability Control (ESC) in a
reduced mode.
NOTE:
The ESC Activation/Malfunction Indicator Light
and the ESC OFF Indicator Light come on
momentarily each time the ignition is placed in
the ON/RUN mode.
Each time the ignition is placed in the ON/RUN
mode, the ESC system will be on even if it was
turned off previously.
The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the
sounds will stop when ESC becomes inactive
following the maneuver that caused the ESC
activation.
Hill Descent Control (HDC) — If Equipped
HDC is intended for low speed off-road
driving while in 4WD Low. HDC maintains
vehicle speed while descending hills
during various driving situations. HDC
controls vehicle speed by actively controlling the
brakes.
HDC Has Three States:

1. Off (feature is not enabled and will not activate).

2. Enabled (feature is enabled and ready but activation conditions are not met, or driver is
actively overriding with brake or throttle
application).
3. Active (feature is enabled and actively controlling vehicle speed).
Enabling HDC
HDC is enabled by pushing the HDC switch, but the
following conditions must also be met to enable
HDC:
The driveline is in 4WD Low.
The vehicle speed is below 5 mph (8 km/h).
The parking brake is released.
The driver door is closed. Activating HDC
Once HDC is enabled it will activate automatically
if driven down a grade of sufficient magnitude. The
set speed for HDC is selectable by the driver, and
can be adjusted by using the gear shift +/-. The
following summarizes the HDC set speeds:
HDC Target Set Speeds
P = No set speed. HDC may be enabled but will
not activate.
R = 0.6 mph (1 km/h)
N = 1.2 mph (2 km/h)
D = 0.6 mph (1 km/h)
1st = 0.6 mph (1 km/h)
2nd = 1.2 mph (2 km/h)
3rd = 1.8 mph (3 km/h)
4th = 2.5 mph (4 km/h)
5th = 3.1 mph (5 km/h)
6th = 3.7 mph (6 km/h)
7th = 4.3 mph (7 km/h)
8th = 5.0 mph (8 km/h)
NOTE:During HDC the +/- shifter input is used for HDC
target speed selection, but will not affect the gear
chosen by the transmission. When actively
controlling HDC the transmission will shift appro
-
priately for the driver-selected set speed and corre -
sponding driving conditions.
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256SAFETY
Enabling SSC
SSC is enabled by pushing the SSC switch, but the
following conditions must also be met to enable
SSC:
The driveline is in 4WD Low.
The vehicle speed is below 5 mph (8 km/h).
The parking brake is released.
The driver door is closed.
The driver is not applying throttle.
Activating SSC
Once SSC is enabled it will activate automatically
once the following conditions are met:
The driver releases the throttle.
The driver releases the brake.
The transmission is in any selection other than
PARK.
The vehicle speed is below 20 mph (32 km/h).
The set speed for SSC is selectable by the driver,
and can be adjusted by using the gear shift +/-.
Additionally, the SSC set speed may be reduced
when climbing a grade and the level of set speed
reduction depends on the magnitude of grade. The
following summarizes the SSC set speeds: SSC Target Set Speeds
1st = .6 mph (1 km/h)
2nd = 1.2 mph (2 km/h)
3rd = 1.8 mph (3 km/h)
4th = 2.5 mph (4 km/h)
5th = 3.1 mph (5 km/h)
6th = 3.7 mph (6 km/h)
7th = 4.3 mph (7 km/h)
8th = 5 mph (8 km/h)
9th = 5.6 mph (9 km/h) – if equipped
REVERSE = .6 mph (1 km/h)
NEUTRAL = 1.2 mph (2 km/h)
PARK = SSC remains enabled but not active
NOTE:
During SSC the +/- shifter input is used for SSC
target speed selection but will not affect the
gear chosen by the transmission. While actively
controlling SSC the transmission will shift appro
-
priately for the driver-selected set speed and
corresponding driving conditions.
SSC operation is influenced by Off Road+ drive
mode if active. The differences may be notable
to the driver as a varying level of aggressive -
ness. Driver Override:
The driver may override SSC activation with throttle
or brake application at any time.
Deactivating SSC
SSC will be deactivated but remain available if any
of the following conditions occur:
Driver overrides SSC set speed with throttle or
brake application
Vehicle speed exceeds 20 mph (32 km/h) but
remains below 40 mph (64 km/h)
Vehicle is shifted to PARK
Disabling SSC
SSC will deactivate and be disabled if any of the
following conditions occur:
The driver pushes the SSC switch.
The driveline is shifted out of 4WD Low.
The parking brake is applied.
The driver door opens.
The vehicle is driven greater than 20 mph
(32 km/h) for greater than 70 seconds.
The vehicle is driven greater than 40 mph
(64 km/h) (SSC exits immediately).

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