ECU JEEP GRAND CHEROKEE 2023 User Guide

26GETTING TO KNOW YOUR VEHICLE
Automatic Temperature Control (ATC)
The climate controls will automatically adjust to
the optimal temperature and mode settings
depending on the outside ambient temperature.
This will occur until the ignition is placed in the ON/
RUN position where the climate controls will
resume their previous settings.
For more information on ATC and climate control
settings, see Ú page 66.
NOTE:These features will stay on through the duration of
Remote Start until the ignition is placed in the ON/
RUN position. The climate control setting will
change, and exit automatic operation, if manually
adjusted by the driver while the vehicle is in
Remote Start mode. This includes the OFF button
on the climate controls, which will turn the system
off.
REMOTE START WINDSHIELD WIPER
D
E-ICER ACTIVATION — IF EQUIPPED
When Remote Start is active and the outside
ambient temperature is less than 33°F (0.6°C),
the Windshield Wiper De-Icer will activate. Exiting
Remote Start will resume its previous operation. If
the Windshield Wiper De-Icer was active, the timer
and operation will continue Ú page 204.
REMOTE START ABORT MESSAGE
One of the following messages will display in the
instrument cluster display if the vehicle fails to
remote start or exits Remote Start prematurely:
Remote Start Canceled — Door Open
Remote Start Canceled — Hood Open
Remote Start Canceled — Liftgate Open
Remote Start Canceled — Fuel Low
Remote Start Canceled — Time Expired
Remote Start Canceled — System Fault
Remote Start Disabled — Start Vehicle to Reset
The instrument cluster display message stays
active until the ignition is placed in the ON/RUN
position.
VEHICLE SECURITY SYSTEM — IF EQUIPPED
The Vehicle Security system monitors the vehicle
doors, hood, liftgate, and the Keyless Enter ‘n Go™
Ignition for unauthorized operation. While the
Vehicle Security system is armed, interior switches
for door locks and liftgate release handle are
disabled. If something triggers the alarm, the Vehicle Security system will provide the following
audible and visible signals:
The horn will pulse
The turn signals will flash
The Vehicle Security Light in the instrument
cluster will flash
TO ARM THE SYSTEM
Follow these steps to arm the Vehicle Security
system:

1. Make sure the vehicle’s ignition is placed in
the OFF position.

Make sure the vehicle’s keyless ignition
system is OFF.
2. Perform one of the following methods to lock the vehicle:
Push lock on the interior power door lock
switch with the driver and/or passenger
door open.
Push the lock button on the exterior Passive
Entry door handle with a valid key fob avail -
able in the same exterior zone Ú page 29.
Push the lock button on the key fob.
3. If any doors are open, close them.

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GETTING TO KNOW YOUR VEHICLE27
When the Vehicle Security system is armed, the
Vehicle Security Light (located in the lower right
portion of the instrument cluster display) will begin
to flash every two seconds until it is disarmed.
NOTE:If the system is armed by pushing the lock button
on the interior door panel, the Vehicle Security
Light will flash rapidly for about 15 seconds once
the door is closed, then slow down to every two
seconds.
TO DISARM THE SYSTEM
The Vehicle Security system can be disarmed using
any of the following methods:
Push the unlock button on the key fob.
Grab the Passive Entry door handle to unlock
the door Ú page 29.
Cycle the ignition out of the OFF position to
disarm the system.
NOTE:
The driver's door key cylinder cannot arm or
disarm the Vehicle Security system. Use of the
door key cylinder when the alarm is armed will
sound the alarm when the door is opened.
The Vehicle Security system remains armed
when the power liftgate is opened using the lift -
gate button on the key fob. If someone enters the vehicle through the opened liftgate, then
opens any door from the inside, the alarm will
sound.
If Passive Entry (if equipped) is used to unlock
the liftgate, the Vehicle Security system is
disarmed and the rest of the vehicle doors will
remain locked unless all doors are set to unlock
on first press within Uconnect Settings.
When the Vehicle Security system is armed, the
interior power door lock switches will not unlock
the doors.
The Vehicle Security system is designed to protect
your vehicle. However, you can create conditions
where the system will give you a false alarm. If one
of the previously described arming sequences has
occurred, the Vehicle Security system will arm
regardless of whether you are in the vehicle or not.
If you remain in the vehicle and open a door, the
alarm will sound. If this occurs, disarm the Vehicle
Security system.
If the Vehicle Security system is armed and the
battery becomes disconnected, the Vehicle
Security system will remain armed when the
battery is reconnected; the exterior lights will flash,
and the horn will sound. If this occurs, disarm the
Vehicle Security system.
REARMING OF THE SYSTEM
If something triggers the alarm and no action is
taken to disarm it, the Vehicle Security system will
turn the horn off after a 29 second cycle (with five
seconds between cycles and up to eight cycles if
the trigger remains active) and then rearm itself.
SECURITY SYSTEM MANUAL OVERRIDE
The Vehicle Security system will not arm if you lock
the doors using the emergency lock lever
Ú page 27.
TAMPER ALERT
If something has triggered the Vehicle Security
system in your absence, the horn will sound three
times and the exterior lights will blink three times
when you disarm the Vehicle Security system.
DOORS
MANUAL DOOR LOCKS
The front doors can be manually unlocked with a
single pull of the inside door handle. The driver’s
door can also be manually unlocked by inserting
the emergency key into the lock cylinder on the
outside door handle.
2

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28GETTING TO KNOW YOUR VEHICLE
NOTE:When using the emergency key to unlock the
outside door handle, make sure the handle of the
emergency key is pointing toward the rear of the
vehicle. This will ensure the handle can be pulled
all the way out while the key is in the lock cylinder.
The rear doors can be manually unlocked with a
double pull of the inside door handle.
Each door can be manually locked by inserting the
emergency key into the emergency lock lever and
sliding the lever upward. The emergency lock lever
is located on the door latch face of each door.

Emergency Lock Lever (Driver’s Door Shown)

NOTE:
The emergency lock lever is only accessible
when the door is open.
Manually locking the vehicle will not arm the
Vehicle Security system.
POWER DOOR LOCKS
The power door lock buttons are located on each
front door panel. Push the lock button to lock all
doors and liftgate, or the unlock button to unlock
all doors and liftgate. When the doors are locked, an indicator light in the
lock button will illuminate.

Power Door Lock Switches

The driver’s door will unlock automatically if the
key fob is detected inside the vehicle when the
door lock button on the front door panel is used to
lock the door, then the door is closed. The horn will
also chirp to alert the driver. This will occur for two
attempts. On the third attempt, the doors will lock
even if the key fob is inside.
NOTE:If the key fob is located next to a mobile phone,
laptop, or other electronic device, the wireless
signal may get blocked, and the driver’s door may
not unlock automatically.
If the door lock button is pushed while the ignition
is in the ON/RUN position and the driver's door is
open, the doors will not lock.
WARNING!
For personal security and safety in the event
of a collision, lock the vehicle doors before you
drive as well as when you park and leave the
vehicle.
When exiting the vehicle, always make sure
the ignition is in the OFF position, remove the
key fob from the vehicle 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 the Keyless Enter ‘n Go™ Ignition in
the ON/RUN position. A child could operate
power windows, other controls, or move the
vehicle.

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GETTING TO KNOW YOUR VEHICLE29
Rear Passenger Power Door Locks
Power door lock buttons are located on each rear
door trim panel. Push the lock button to lock the
rear door or push the unlock button to unlock the
rear door.
KEYLESS ENTER ‘N GO™ — PASSIVE
E
NTRY
The Passive Entry system is an enhancement to
the vehicle’s Remote Keyless Entry (RKE) system
and a feature of Keyless Enter ‘n Go™. This feature
allows you to lock and unlock the vehicle’s door(s)
without having to push the key fob lock or unlock
buttons.
If equipped, the rear doors will also have Passive
Entry capabilities.
NOTE:
Passive Entry may be programmed on/off
through Uconnect Settings Ú page 204.
The key fob may not be detected by the vehicle
Passive Entry system if it is located next to a
mobile phone, laptop or other electronic device;
these devices may block the key fob's wireless
signal and prevent the Passive Entry handle
from locking/unlocking the vehicle.
Passive Entry unlock initiates illuminated
approach (low beams, license plate lamp,
parking lights, door handle pocket lights [if equipped]) for a preset duration of 0, 30, 60 or
90 seconds. Passive Entry unlock also initiates
two flashes of the turn signal lights.
If wearing gloves, if it has been raining/snowing,
or there is salt/dirt covering the Passive Entry
door handle, the unlock and lock sensitivity can
be affected, resulting in a slower response time.
The doors may lock and unlock when water is
sprayed on the Passive Entry door handles, if
the key fob is located outside of the vehicle
within 5 ft (1.5 m) of the handle.
Passive Entry lock initiates one horn chirp and
one flash of turn signal lights. These settings
can be programmed on/off within Uconnect
Settings Ú
page 204.
If the vehicle is unlocked by Passive Entry and
no door is opened within 60 seconds, the
vehicle will relock and will rearm the Vehicle
Security system (if equipped).
To Unlock From The Driver Or Passenger Side
With a valid Passive Entry key fob within 5 ft
(1.5 m) of the door handle, grab the handle to
unlock the vehicle. Grabbing the driver’s door
handle will unlock the driver door automatically.
Grabbing the front passenger door handle (or a
rear handle when equipped with four-door Passive
Entry) will unlock all doors and the liftgate
automatically.
Grab The Door Handle To Unlock

NOTE:
Either the driver door only or all doors will unlock
when you grab hold of the front driver’s door
handle, depending on the selected setting in the
Uconnect system Ú
page 204.
All doors will unlock when the front passenger
(or a rear door when equipped with four-door
Passive Entry) door handle is grabbed regard -
less of the driver’s door unlock preference
setting.
Frequency Operated Button Integrated Key
(FOBIK-Safe)
To minimize the possibility of unintentionally
locking a Passive Entry key fob inside your vehicle,
the Passive Entry system is equipped with an
automatic door unlock feature which will function if
the ignition switch is in the OFF position.
2

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30GETTING TO KNOW YOUR VEHICLE
There are five situations that trigger a FOBIK-Safe
search in any Passive Entry vehicle:
A lock request is made by a valid Passive Entry
key fob while a door is open.
A lock request is made by the Passive Entry door
handle while a door is open.
A lock request is made by the door panel switch
while the door is open.
When the Vehicle Security system is in pre-arm
or armed status and the liftgate transitions from
opened to closed.
When the liftgate transitions from open to
closed and Remote Start is active.
When any of these situations occur, after all open
doors are shut, the FOBIK-Safe search will be
executed. If it detects a Passive Entry key fob
inside the vehicle, the vehicle will unlock and alert
the customer.
NOTE:The vehicle will only unlock the doors when a valid
Passive Entry key fob is detected inside the
vehicle. The vehicle will not unlock the doors when
any of the following conditions are true:
The doors are manually locked using the emer -
gency lock lever.
Three attempts are made to lock the doors
using the door panel switch and then the doors
are closed.
There is a valid Passive Entry key fob outside the
vehicle within 5 ft (1.5 m) of a Passive Entry
door handle.
To Lock The Vehicle’s Doors And Liftgate
With one of the vehicle’s Passive Entry key fobs
within 5 ft (1.5 m) of a Passive Entry door handle,
touch the lock icon on the door handle to lock all
four doors and liftgate.

Touch The Door Handle Lock Icon To Lock

NOTE:Do NOT grab the door handle when touching the
lock icon. This could unlock the door(s).
Do NOT Grab The Door Handle When Locking

NOTE:
After touching the door handle lock icon, you
must wait two seconds before you can lock or
unlock the doors using any Passive Entry door
handle. This is done to allow you to check if the
vehicle is locked by pulling the door handle,
without the vehicle unlocking.
If Passive Entry is disabled using the Uconnect
Settings, the key fob protection described in
"Frequency Operated Button Integrated Key
(FOBIK-Safe)" remains active/functional.
The Passive Entry system will not operate if the
key fob battery is depleted.

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38GETTING TO KNOW YOUR VEHICLE
Second Row Bench Seat — If Equipped
SECOND ROW BENCH SEAT FORWARD/REAR -
WARD ADJUSTMENT
Lift up on the adjusting bar located at the front of
the seat near the floor and release it when the seat
is at the desired position. Then, using body
pressure, move forward and rearward on the seat
to be sure that the seat adjusters have latched.

Rear Seat Adjustment Bar

SECOND ROW BENCH SEAT RECLINE ADJUSTMENT

To recline, lean forward slightly and lift the lever
located on the outboard side of the seat. Then,
push the seat rearward to the desired position and
release the lever. To return the seatback to its
normal position, lean forward and lift the lever. To
ensure the seatback is latched, use body pressure
to lean forward and rearward.
Rear Seat Recline Lever

SECOND ROW BENCH FOLD FLAT SEAT
To provide additional storage area, each rear seat
can be folded flat. This allows for extended cargo
space and still maintains some rear seating room.
NOTE:Prior to folding the rear seat, it may be necessary
to position the front seat to its mid-track position.
Also, be sure that the front seats are fully upright
and positioned forward. This will allow the rear seat
to fold down easily.To lower the seatback, pull upward on the recline
lever located on the outboard side of the seat, and
let the seatback fold forward automatically.

Second Row Bench Seat Folded Flat

To raise the seatback, fold the seatback up into its
original position and lock it into place.
WARNING!
Do not ride with the seatback reclined so that
the shoulder belt is no longer resting against
your chest. In a collision you could slide under
the seat belt, which could result in serious injury
or death.
WARNING!
Be certain that the seatback is securely locked
into position. If the seatback is not securely
locked into position the seat will not provide the
proper stability for child seats and/or
passengers. An improperly latched seat could
cause serious injury.

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40GETTING TO KNOW YOUR VEHICLE
SECOND ROW CAPTAIN’S CHAIRS RECLINE
ADJUSTMENT
To recline, lean forward slightly and lift the lever
located on the outboard side of the seat. Then,
push the seat rearward to the desired position and
release the lever. To return the seatback to its
normal position, lean forward and lift the lever. To
ensure the seatback is latched, use body pressure
to lean forward and rearward.

Rear Seat Recline Lever

SECOND ROW CAPTAIN’S CHAIRS FOLD FLAT
SEATS
The second row seatbacks can be folded flat to
carry cargo.
Pull upward on the recline lever located on the
outboard side of each second row seat, and guide
the seatback down into the folded position.
Second Row Captain’s Chairs Folded Flat

To Raise The Rear Seats
Fold the seatbacks upward to their original
position, and lock them into place.
SECOND ROW CAPTAIN’S CHAIR EASY ACCESS
FOR THIRD ROW
The second row seats can tip forward to allow
passengers to easily access the third row seats.
Pull upward on the easy entry lever located on the
outboard side of the seatback, then tip and slide
the entire seat forward.

Easy Entry Lever Location

WARNING!
Do not ride with the seatback reclined so that
the shoulder belt is no longer resting against
your chest. In a collision you could slide under
the seat belt, which could result in serious injury
or death.
WARNING!
Be certain that the seatback is securely locked
into position. If the seatback is not securely
locked into position the seat will not provide the
proper stability for child seats and/or
passengers. An improperly latched seat could
cause serious injury.

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GETTING TO KNOW YOUR VEHICLE41

Access To Third Row Seats

To return the seat to a sitting position, unfold the
seatback upright until it locks and push the seat
rearward until the track locks.
Manual Folding Third Row — If Equipped
Both third row seats can be folded forward to
increase the cargo area. To lower either seat, pull
on the release handle located on the back of the
seat and lower the seat using the pull strap located
next to the release handle.
NOTE:The second row seats must be in their full upright
position or folded flat when folding the third row
seats.
Release Handles
Third Row Folded

To raise the seat, pull the seat toward you using
the strap located on the back of the seat.
POWER ADJUSTMENT (FRONT SEATS) —
I
F EQUIPPED
Some models may be equipped with 12-way power
driver and front passenger seats. The power seat
switches are located on the outboard side of the
seat. There are three switches that control the
movement of the seat cushion and the seatback.

Power Seat Switches

WARNING!

Be certain that the seatback is securely locked into
position. If the seatback is not securely locked into
position the seat will not provide the proper
stability for child seats and/or passengers. An
improperly latched seat could cause serious injury.

1 — Cushion Extender Switch
2 — Seat Switch
3 — Seatback And Bolster Adjustment Switch
2

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GETTING TO KNOW YOUR VEHICLE53

AUTOMATIC POWER FOLDING MIRRORS —
I
F EQUIPPED

When enabled within Uconnect Settings
Ú page 204, the exterior mirrors will automatically
fold when the vehicle’s ignition is placed in the OFF
position, and after the doors are locked and
closed.
The exterior mirrors will auto-fold in the following
situations after the ignition is placed in the OFF
position:
Pushing the lock button on the door panel
before the door is opened.
NOTE:If the doors are already locked, push the lock
button again.
Opening the door, then pushing the lock button
on the door panel, followed by closing the door.
After exiting the vehicle, close the doors then
push the lock button on the key fob.
After exiting the vehicle, close the doors then
touch the lock icon on the Passive Entry door
handle.
If the exterior mirrors were folded automatically,
they will unfold when the ignition is placed in the
ON/RUN position.
NOTE:If the mirrors were folded manually, by using the
power folding mirror switch on the driver’s door
panel, they will not automatically unfold.
HEATED MIRRORS — IF EQUIPPED
These mirrors are heated to melt frost or
ice. This feature will be activated
whenever you turn on the rear window
defroster (if equipped) Ú page 66.
TILT SIDE MIRRORS IN REVERSE —
I
F EQUIPPED
Tilt Side Mirrors In Reverse provides automatic
outside mirror positioning which will aid the
driver’s view of the ground rearward of the front
doors. Outside mirrors will move slightly downward
from the present position when the vehicle is
shifted into REVERSE. Outside mirrors will then
return to the original position when the vehicle is
shifted out of REVERSE position. Each stored
memory setting will have an associated Tilt Side
Mirrors In Reverse position.
NOTE:The Tilt Side Mirrors In Reverse feature can be
turned on and off using the Uconnect system
Ú page 204.
UNIVERSAL GARAGE DOOR OPENER
(HOMELINK®) — IF EQUIPPED

HomeLink® Buttons And Indicator Light

Use this QR code to access your
digital experience.
HomeLink® replaces up to
three hand-held transmitters
that operate devices such as
garage door openers, motor -
ized gates, lighting or home
security systems. The HomeLink® unit is
powered by your vehicle’s 12 Volt battery.
The HomeLink® buttons that are located in the
overhead console or sun visor designate the
three different HomeLink® channels.
2

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54GETTING TO KNOW YOUR VEHICLE
To operate HomeLink®, push and release any
of the programmed HomeLink® buttons. These
buttons will activate the devices they are
programmed to with each press of the corre -
sponding HomeLink® button.
The HomeLink® indicator light is located above
the center button.
NOTE:HomeLink® is disabled when the Vehicle Security
system is active Ú page 408.
BEFORE YOU BEGIN PROGRAMMING
H
OMELINK®
For efficient programming and accurate
transmission of the Radio Frequency (RF) signal, it
is recommended that a new battery be placed in
the hand-held transmitter of the device that is
being programmed to the HomeLink® system.
Make sure your hand-held transmitter is
programmed to activate the device you are trying
to program your HomeLink® button to.
Ensure that your vehicle is parked outside of the
garage before you begin programming.
It is recommended that you erase all the channels
of your HomeLink® before you use it for the first
time.
ERASING ALL THE HOMELINK®
C
HANNELS
To erase the channels, follow this procedure:

1. Place the ignition switch into the ON/RUN
position.

2. Push and hold the two outside HomeLink® buttons (I and III) for up to 20 seconds, or until
the HomeLink® indicator light flashes.
NOTE:Erasing all channels should only be performed
when programming HomeLink® for the first time.
Do not erase channels when programming addi -
tional buttons.
IDENTIFYING WHETHER YOU HAVE A
R
OLLING CODE OR NON-ROLLING CODE
D
EVICE
Before programming a device to one of your
HomeLink® buttons, you must determine whether
the device has a rolling code or non-rolling code.
Rolling Code Devices
To determine if your device has a rolling code, a
good indicator is its manufacturing date. Typically,
devices manufactured after 1995 have rolling
codes. A device with a rolling code will also have a
“LEARN” or “TRAIN” button located where the
antenna is attached to the device. The button may not be immediately visible when looking at the
device. The name and color of the button may vary
slightly by manufacturer.
NOTE:The “LEARN” or “TRAIN” button is not the button
you normally use to operate the device.
Non-rolling Code Devices
Most devices manufactured before 1995 will not
have a rolling code. These devices will also not
have a “LEARN” or “TRAIN” button.
PROGRAMMING HOMELINK® TO A
G
ARAGE DOOR OPENER
To program any of the HomeLink® buttons to
activate your garage door opener motor, proceed
as follows:
NOTE:All HomeLink® buttons are programmed using this
procedure. You do not need to erase all channels
when programming additional buttons.

1. Place the ignition switch into the ON/RUN
position.

2. Place the garage door opener transmitter 1 to 3 inches (3 to 8 cm) away from the
HomeLink® button you wish to program, while
keeping the HomeLink® indicator light in view.

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