key JEEP GRAND CHEROKEE 2023 Service Manual

STARTING AND OPERATING127
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 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.
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.
8-SPEED AUTOMATIC TRANSMISSION
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

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128STARTING 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.

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166STARTING AND OPERATING
ParkSense Usage Precautions
Some conditions may influence the performance
of the Side Distance Warning system:
NOTE:
Ensure that the front and rear fascia/bumper
are free of snow, ice, mud, dirt and debris to
keep the ParkSense system operating properly.
Construction equipment, large trucks, and other
vibrations could affect the performance of
ParkSense.
When you turn ParkSense off, the message to
appear in the instrument cluster display will
read “PARKSENSE OFF.” Furthermore, once you
turn ParkSense off, it remains off until you turn
it on again, even if you cycle the ignition key.
ParkSense, when on, will reduce the volume of
the radio when it is sounding a tone.
Clean the ParkSense sensors regularly, taking
care not to scratch or damage them. The
sensors must not be covered with ice, snow,
slush, mud, dirt or debris. Failure to do so can
result in the system not working properly. The
ParkSense system might not detect an obstacle
behind or in front of the fascia/bumper, or it
could provide a false indication that an obstacle
is behind or in front of the fascia/bumper.
The presence of a tow hook without a trailer may
interfere with the correct operation of the
parking sensors. Before using the ParkSense system, it is recommended to remove the
removable tow hook ball assembly and any
attachments from the vehicle when it is not
used for towing operations.

PARKSENSE ACTIVE PARK ASSIST SYSTEM —
IF EQUIPPED

The ParkSense Active Park Assist system is
intended to assist the driver during parallel and
perpendicular parking maneuvers by identifying a
proper parking space, providing audible/visual
instructions, and controlling the steering wheel.
The ParkSense Active Park Assist system is
defined as “semi-automatic” since the driver
maintains control of the accelerator, gear selector
and brakes. Depending on the driver's parking
maneuver selection, the ParkSense Active Park
Assist system is capable of maneuvering a vehicle
into a parallel or a perpendicular parking space on
either side (i.e., driver side or passenger side).
WARNING!
Drivers must be careful when backing up even
when using ParkSense. Always check carefully
behind your vehicle, look behind you, and be
sure to check for pedestrians, animals, other
vehicles, obstructions, and blind spots before
backing up. You are responsible for safety and
must continue to pay attention to your
surroundings. Failure to do so can result in
serious injury or death.
Before using ParkSense, it is strongly recom
-
mended that the ball mount and hitch ball
assembly be disconnected from the vehicle
when the vehicle is not used for towing.
Failure to do so can result in injury or damage
to vehicles or obstacles because the hitch ball
will be much closer to the obstacle than the
rear fascia when the vehicle sounds the
continuous tone. Also, the sensors could
detect the ball mount and hitch ball assembly,
depending on its size and shape, giving a false
indication that an obstacle is behind the
vehicle.
CAUTION!

ParkSense is only a parking aid and it is unable
to recognize every obstacle, including small
obstacles. Parking curbs might be temporarily
detected or not detected at all. Obstacles
located above or below the sensors will not be
detected when they are in close proximity.

The vehicle must be driven slowly when using
ParkSense in order to be able to stop in time
when an obstacle is detected. It is recom -
mended that the driver looks over his/her
shoulder when using ParkSense.

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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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218MULTIMEDIA
Brakes
Greeting Lights When the “Greeting Lights” feature is selected, it enables “Headlight
Illumination On Approach”. When “Headlight Illumination On Approach” is
selected, it allows the adjustment of the amount of time the headlights
remain on after the doors are unlocked with the key fob. “Greeting Lights”
must be selected and “Headlight Illumination On Approach” must be selected
above zero seconds for the feature to be enabled. The available settings are
“On” and “Off”.
Auto Dim High Beams This setting will allow you to turn the Auto Dim High Beams on or off.
Daytime Running Lights This setting will allow you to turn the Daytime Running Lights on or off.
Cornering Lights When this setting is selected, if the steering wheel rotation angle is large or
the turn signal indicators are on, a light (incorporated in the fog light) will turn
on, on the relevant side to improve visibility at night.
Flash Lights With Lock This setting will allow you to turn the flashing of the lights when the Lock
button is pushed on the key fob on or off.
Setting Name
Description
When the Brakes button is pressed on the touchscreen, the system will display settings related to the vehicle’s brake system.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting NameDescription
Auto Park Brake This setting will turn the Auto Park Brake on or off.
Brake Service This setting will allow you to set the brakes for service. When the setting is
selected, a pop-up will display with “Yes” and “No” options.

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MULTIMEDIA219
Doors & Locks
When the Doors & Locks button is pressed on the touchscreen, the system displays the options related to locking and unlocking the vehicle’s doors.
NOTE:
The Auto Door Locks feature default condition is enabled. When enabled, the door locks will lock automatically when the vehicle’s speed exceeds 15 mph
(24 km/h). The Auto Door Locks feature can be enabled or disabled by an authorized dealer per written request of the customer. Please see an authorized
dealer for service.
Depending on the vehicle’s options, feature settings may vary.
Setting Name Description
Auto Door Locks This setting will allow you to change if the doors lock automatically when the
vehicle reaches 15 mph (24 km/h).
Auto Unlock On Exit This setting will unlock the doors when any of the doors are opened from the
inside.
Flash Lights With Lock This setting will allow you to turn the flashing of the lights when the Lock
button is pushed on the key fob on or off.
Sound Horn With Lock This setting will sound the horn when the Lock button is pushed on the key
fob. The “Off” setting will not sound the horn when the Lock button is pushed.
The “1st Press” setting will sound the horn when the Lock button is pushed
once. The “2nd Press” setting will sound the horn when the Lock button is
pushed twice.
Sound Horn With Remote Start This setting will sound the horn when the remote start is activated from the
key fob.
Remote Door Unlock, Door Lock/1st Press Of Key Fob Unlocks This setting will change how many pushes of the Unlock button on the key fob
are needed to unlock all the doors. The “Driver Door” setting will only unlock
the driver door on the first push on the Unlock button. The “All Doors” setting
will unlock all doors with only one push of the Unlock button.5

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220MULTIMEDIA
Seats & Comfort
Passive Entry This setting will allow you to turn the Passive Entry feature
(Keyless Enter ‘n Go™) on or off.
Personal Settings Linked To Key Fob This setting will recall preset radio stations and driver seat position that have
been linked to the key fob.
Power Liftgate Alert This setting will chime an audible alert when the power liftgate is raising or
lowering. Selectable options are “On” and “Off”.
Hands-Free Power Liftgate This setting will use hands-free technology to automatically open or close the
power liftgate. Selectable options are “On” and “Off”.
Auto Relock This setting will lock the doors after 30 seconds of the doors remaining
unlocked. The available options are “On” and “Off”.
Setting Name
Description
When Seats & Comfort button is pressed on the touchscreen, the system displays the options related to the vehicle’s comfort systems when remote start has
been activated or the vehicle has been started.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting NameDescription
Easy Exit Seats This setting will automatically move the driver seat rearward when the engine
is shut off. The available settings are “On” and “Off”.

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MULTIMEDIA221
Key Off Options
Auto-On Driver Heated/Ventilated Seat & Heated Steering Wheel With Vehicle
Start This setting will activate the vehicle’s comfort systems and heated seats or
heated steering wheel when the vehicle is remote started or ignition is
started. The “Off” setting will not activate the comfort systems. The “Remote
Start” setting (if equipped) will only activate the comfort systems when using
Remote Start. The “All Start” setting will activate the comfort systems
whenever the vehicle is started.
3rd Row Seat Recline Lockout This setting will activate the 3rd Row Seat Recline Lockout. Selectable options
are “Off”, “Lock On Ignition”, and “Always Locked”.
Setting Name
Description
When the Key Off Options button is pressed on the touchscreen, the system displays the options related to vehicle shutoff. These settings will only activate
when the ignition is set to OFF.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting NameDescription
Sound Horn With Lower
This setting will sound the horn when the Lower button is pressed on the key fob.

Flash Lights With Lower
This setting will flash the lights when the Lower button is pressed on the key fob.

Easy Exit Seat This setting adjusts the seats to make exiting the vehicle easier.
Headlight Off Delay This setting will allow you to set the amount of time the headlights remain on
after the vehicle has been turned off. The available settings are “0 sec”, “30
sec”, “60 sec”, and “90 sec”.
Auto Entry/Exit Suspension This setting will turn the Auto Entry/Exit Suspension system on or off.
5

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222MULTIMEDIA
Suspension
Radio Off Delay
This setting will keep the radio on for the selected amount of time after vehicle
shut off. The available options are “0 sec”, “45 sec”, “5 min”, and “10 min”.

Radio Off With Door This setting will keep the radio on when a door is opened or until the Radio Off
Delay time is reached. The available settings are “On” and “Off”.
Windows With Key Fob This setting will allow you to control window function while the vehicle is off.
The available options are “On” and “Off”.
Setting Name
Description
When the Suspension button is pressed on the touchscreen, the system will display settings related to the vehicle’s air suspension.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting NameDescription
Auto Entry/Exit Suspension This setting will turn the Auto Entry/Exit Suspension system on or off.
Display Suspension Messages This setting will display suspension messages in the Instrument Cluster
Display. The “All” setting will display all available messages. The “Warnings
Only” setting will only display warning messages.
Tire Jack Mode This setting will disable the Air Suspension system to assist in changing a
spare tire.
Auxiliary Mode This setting will allow you to set the Auxiliary Suspension Mode. The available
options are “Off”, “Transport Mode”, and “Wheel Alignment Mode”. In
Transport Mode, the vehicle will not auto level when being transported by
another vehicle. In Wheel Alignment Mode, the vehicle will not auto level when
a wheel alignment is being performed.

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250SAFETY
ELECTRONIC BRAKE CONTROL (EBC)
S
YSTEM
If applicable, refer to the “Hybrid Supplement” for
additional information.
Your vehicle is equipped with an advanced EBC
system. This system includes the Anti-Lock Brake
System (ABS), Brake Assist System (BAS),
Electronic Brake Force Distribution (EBD), Electronic Roll Mitigation (ERM), Electronic
Stability Control (ESC), Hill Start Assist (HSA), and
Traction Control System (TCS). These systems work
together to enhance both vehicle stability and
control in various driving conditions.
Your vehicle may also be equipped with Dynamic
Steering Torque (DST), Rain Brake Support (RBS),
Ready Alert Braking (RAB), and Trailer Sway
Control (TSC).
Brake Assist System (BAS)
The BAS is designed to optimize the vehicle’s
braking capability during emergency braking
maneuvers. The system detects an emergency
braking situation by sensing the rate and amount
of brake application and then applies optimum
pressure to the brakes. This can help reduce
braking distances. The BAS complements the
Anti-Lock Brake System (ABS). Applying the brakes
very quickly results in the best BAS assistance. To
receive the benefit of the system, you must apply
continuous braking pressure during the stopping
sequence (do not “pump” the brakes). Do not
reduce brake pedal pressure unless braking is no
longer desired. Once the brake pedal is released,
the BAS is deactivated.
Brake System Warning Light
The red Brake System Warning Light will turn on
when the ignition is placed in the ON/RUN mode
and may stay on for as long as four seconds.
If the Brake System Warning Light remains on or
comes on while driving, it indicates that the brake
system is not functioning properly and that
immediate service is required. If the Brake System
Warning Light does not come on when the ignition
is placed in the ON/RUN mode, have the light
repaired as soon as possible.
WARNING!
Before exiting a vehicle, always come to a
complete stop, then shift the automatic trans
-
mission into PARK and apply the parking
brake.
Always make sure the keyless ignition node is
in the OFF position, key fob is removed from
the vehicle and vehicle is locked.
Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Leaving chil -
dren 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 children or animals inside parked
vehicles in hot weather. Interior heat buildup
may cause serious injury or death.
WARNING!
The Brake Assist System (BAS) cannot prevent
the natural laws of physics from acting on the
vehicle, nor can it increase the traction afforded
by prevailing road conditions. BAS cannot
prevent collisions, including those resulting from
excessive speed in turns, driving on very slippery
surfaces, or hydroplaning. The capabilities of a
BAS-equipped vehicle must never be exploited in
a reckless or dangerous manner, which could
jeopardize the user's safety or the safety of
others.

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