service indicator JEEP GRAND CHEROKEE 2023 Owners Manual

14 Electronic Stability Control (ESC) OFF Warning Light Úpage 112
Engine Check/Malfunction Indicator Warning Light (MIL) Úpage 112
Fuel Level Sensor Failure Warning Light Úpage 112
Low Fuel Warning Light Úpage 112
Low Washer Fluid Warning Light Úpage 112
Night Vision Animal Warning Light Úpage 110
Night Vision Pedestrian Warning Light Úpage 110
Yellow Warning Lights
Service 4WD Warning Light
Úpage 113
Service Active Lane Management Warning Light Úpage 112
Service Adaptive Cruise Control (ACC) Warning Light Úpage 113
Service Forward Collision Warning (FCW) Or Pedestrian Emergency Braking (PEB) Warning Light
Úpage 113
Service Stop/Start System Warning Light Úpage 113
Sway Bar Fault Warning Light Úpage 113
Tire Pressure Monitoring System (TPMS) Warning Light Úpage 113
Yellow Warning Lights

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96GETTING TO KNOW YOUR INSTRUMENT PANEL
Use this QR code to access your
digital experience.
DIGITAL INSTRUMENT
C
LUSTER DESCRIPTIONS

1. Speedometer

Indicates vehicle speed.
2. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within the
normal range indicates that the engine
cooling system is operating satisfactorily.
The pointer will likely indicate a higher
temperature when driving in hot weather,
up mountain grades, or when towing a
trailer. It should not be allowed to exceed
the upper limits of the normal operating
range. 3. Tachometer
Indicates the engine speed in revolutions
per minute (RPM x 1000).
4. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the Keyless Push Button
Ignition is in the ON/RUN position.
 The fuel pump symbol points to
the side of the vehicle where the
fuel door is located.
NOTE:The Instrument Cluster Warning Indicators will illu -
minate briefly for a bulb check when the ignition is
first cycled.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. It is recommended to call an authorized
dealer for service if your vehicle overheats
Ú page 346.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge
reads “H” pull over and stop the vehicle. Idle the
vehicle with the air conditioner turned off until
the pointer drops back into the normal range. If
the pointer remains on the “H”, turn the engine
off immediately and call an authorized dealer for
service.

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98GETTING TO KNOW YOUR INSTRUMENT PANEL
ANALOG INSTRUMENT CLUSTER
D
ESCRIPTIONS

1. Tachometer

Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Speedometer
Indicates vehicle speed.
3. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within the
normal range indicates that the engine
cooling system is operating satisfactorily.
The pointer will likely indicate a higher
temperature when driving in hot weather,
up mountain grades, or when towing a
trailer. It should not be allowed to exceed
the upper limits of the normal operating
range. 4. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the Keyless Push Button
Ignition is in the ON/RUN position.
 The fuel pump symbol points to
the side of the vehicle where the
fuel door is located.
NOTE:The Instrument Cluster Warning Indicators will illu -
minate briefly for a bulb check when the ignition is
first cycled.
INSTRUMENT CLUSTER DISPLAY
Depending on your vehicles trim level, features
and options may vary.
Your vehicle will be equipped with an instrument
cluster display, which offers useful information to
the driver. With the ignition in the OFF mode, opening/closing of a door will activate the display
for viewing, and display the total miles, or
kilometers, in the odometer. Your instrument
cluster display is designed to display important
information about your vehicle’s systems and
features. Using a driver interactive display located
on the instrument panel, your instrument cluster
display can show you how systems are working and
give you warnings when they are not. The steering
wheel mounted controls allow you to scroll through
the main menus and submenus. You can access
the specific information you want and make
selections and adjustments.
LOCATION AND CONTROLS

Instrument Cluster Display/Controls Location

WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. It is recommended to call an authorized
dealer for service if your vehicle overheats
Ú
page 346.
CAUTION!

Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge reads
“H” pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on the “H”, turn the engine off immediately
and call an authorized dealer for service.

1 – Instrument Cluster Display Screen
2 – Instrument Cluster Display Controls

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108GETTING TO KNOW YOUR INSTRUMENT PANEL
WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in the
instrument panel together with a dedicated
message and/or acoustic signal when applicable.
These indications are indicative and precautionary
and as such must not be considered as exhaustive
and/or alternative to the information contained in
the Owner’s Manual, which you are advised to read
carefully in all cases. Always refer to the
information in this chapter in the event of a failure
indication. All active telltales will display first if
applicable. The system check menu may appear
different based upon equipment options and
current vehicle status. Some telltales are optional
and may not appear.
RED WARNING LIGHTS
Active Driving Assist - Driver
Inattentiveness Warning Light
This light illuminates when driver
inattentiveness has been continually
detected, warning the driver to place
their hands on the steering wheel.
Air Bag Warning Light
This warning light will illuminate to
indicate a fault with the air bag, and will
turn on for four to eight seconds as a bulb
check when the ignition is placed in the
ON/RUN position. This light will illuminate with a single chime when a fault with the air bag has been
detected, it will stay on until the fault is cleared. If
the light is either not on during startup, stays on, or
turns on while driving, have the system inspected
at an authorized dealer as soon as possible.
Brake Warning Light
This warning light monitors various brake
functions, including brake fluid level and
parking brake application. If the brake
light turns on it may indicate that the
parking brake is applied, that the brake fluid level
is low, or that there is a problem with the Anti-Lock
Brake System reservoir.
If the light remains on when the parking brake has
been disengaged, and the fluid level is at the full
mark on the master cylinder reservoir, it indicates
a possible brake hydraulic system malfunction or
that a problem with the Brake Booster has been
detected by the Anti-Lock Brake System (ABS) /
Electronic Stability Control (ESC) system. In this
case, the light will remain on until the condition has
been corrected. If the problem is related to the
brake booster, the ABS pump will run when
applying the brake, and a brake pedal pulsation
may be felt during each stop.
The dual brake system provides a reserve braking
capacity in the event of a failure to a portion of the
hydraulic system. A leak in either half of the dual
brake system is indicated by the Brake Warning
Light, which will turn on when the brake fluid level in the master cylinder has dropped below a
specified level.
The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level
conditions. The vehicle should have service
performed, and the brake fluid level checked.
If brake failure is indicated, immediate repair is
necessary.
Vehicles equipped with the Anti-Lock Brake System
(ABS) are also equipped with Electronic Brake
Force Distribution (EBD). In the event of an EBD
failure, the Brake Warning Light will turn on along
with the ABS Light. Immediate repair to the ABS
system is required.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from the OFF
position to the ON/RUN position. The light should
illuminate for approximately two seconds. The light
should then turn off unless the parking brake is
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have
failed. It will take longer to stop the vehicle. You
could have a collision. Have the vehicle checked
immediately.

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GETTING TO KNOW YOUR INSTRUMENT PANEL109
applied or a brake fault is detected. If the light does
not illuminate, have the light inspected by an
authorized dealer.
The light also will turn on when the parking brake
is applied with the ignition switch in the ON/RUN
position.
NOTE:This light shows only that the parking brake is
applied. It does not show the degree of brake appli -
cation.
Battery Charge Warning Light
This warning light will illuminate when the
battery is not charging properly. If it stays
on while the engine is running, there may
be a malfunction with the charging
system. Contact an authorized dealer as soon as
possible.
This indicates a possible problem with the
electrical system or a related component.
Door Open Warning Light
This indicator will illuminate when a door
is ajar/open and not fully closed.
NOTE:If the vehicle is moving, there will also be a single
chime.
Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when
there's a fault with the EPS system
Ú page 139.
Electronic Throttle Control (ETC) Warning
Light
This warning light will illuminate to
indicate a problem with the ETC system.
If a problem is detected while the vehicle
is running, the light will either stay on or
flash depending on the nature of the problem.
Cycle the ignition when the vehicle is safely and
completely stopped and the transmission is placed
in the PARK position. The light should turn off. If
the light remains on with the vehicle running, your
vehicle will usually be drivable; however, see an
authorized dealer for service as soon as possible.
NOTE:This light may turn on if the accelerator and brake
pedals are pressed at the same time.
If the light continues to flash when the vehicle is
running, immediate service is required and you
may experience reduced performance, an
elevated/rough idle, or engine stall and your
vehicle may require towing. The light will come on
when the ignition is placed in the ON/RUN position
and remain on briefly as a bulb check. If the light
does not come on during starting, have the system
checked by an authorized dealer.
Engine Coolant Temperature Warning
Light
This warning light warns of an
overheated engine condition. If the
engine coolant temperature is too high,
this indicator will illuminate and a single
chime will sound. If the temperature reaches the
upper limit, a continuous chime will sound for four
minutes or until the engine is able to cool;
whichever comes first.
If the light turns on while driving, safely pull over
and stop the vehicle. If the Air Conditioning (A/C)
system is on, turn it off. Also, shift the transmission
into NEUTRAL (N) and idle the vehicle. If the
temperature reading does not return to normal,
turn the engine off immediately and call for service
Ú page 322.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.
3

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GETTING TO KNOW YOUR INSTRUMENT PANEL111
Vehicle Security Warning Light —
If Equipped

This light will flash at a fast rate for
approximately 15 seconds when the vehicle
security system is arming, and then will flash
slowly until the vehicle is disarmed.

YELLOW WARNING LIGHTS
Active Driving Assist - Driver
Inattentiveness Warning Light
This light illuminates when driver
inattentiveness has been detected,
warning the driver to place their hands on
the steering wheel.
Active Driving Assist Fault Warning Light
This light will turn on when the Active
Driving Assist system has detected a
fault.
Air Suspension Fault Warning Light
This light will illuminate when there is a
fault detected in the air suspension
system.

Anti-Lock Brake System (ABS) Warning Light

This warning light monitors the ABS. The
light will turn on when the ignition is
placed in the ON/RUN or position and
may stay on for as long as four seconds.
If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the brake
system is not functioning and service is required as
soon as possible. However, the conventional brake
system will continue to operate normally,
assuming the Brake Warning Light is not also on.
If the ABS light does not turn on when the ignition
is placed in the ON/RUN position, have the brake
system inspected by an authorized dealer.
Electric Park Brake Fault Warning Light
This warning light will illuminate to
indicate the Electric Park Brake is not
functioning properly and service is
required. Contact an authorized dealer.
Electronic Stability Control (ESC) Active
Warning Light — If Equipped
This warning light will indicate when the
ESC system is Active. The ESC Indicator
Light in the instrument cluster will come
on when the ignition is placed in the ON/
RUN position, and when ESC is activated. It should
go out with the engine running. If the ESC Indicator
Light comes on continuously with the engine
running, a malfunction has been detected in the
ESC system. If this warning light remains on after
several ignition cycles, and the vehicle has been
driven several miles (kilometers) at speeds greater
than 30 mph (48 km/h), see an authorized dealer
as soon as possible to have the problem
diagnosed and corrected.
The ESC OFF Indicator Light and the ESC Indi -
cator Light come on momentarily each time the
ignition is placed in the ON/RUN position.
The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the
sounds will stop when ESC becomes inactive.
This light will come on when the vehicle is in an
ESC event.
WARNING!
If you continue operating the vehicle when the
Transmission Temperature Warning Light is
illuminated you could cause the fluid to boil over,
come in contact with hot engine or exhaust
components and cause a fire.
CAUTION!
Continuous driving with the Transmission
Temperature Warning Light illuminated will
eventually cause severe transmission damage
or transmission failure.
3

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112GETTING TO KNOW YOUR INSTRUMENT PANEL
Electronic Stability Control (ESC) OFF
Warning Light — If Equipped
This warning light indicates the ESC is off.
Each time the ignition is turned to ON/
RUN, the ESC system will be on, even if it
was turned off previously.
Service Active Lane Management Warning
Light — If Equipped
This warning light will illuminate when the
Active Lane Management system is not
operating and requires service. Please
see an authorized dealer.
Active Lane Management Warning Light —
If Equipped
The Active Lane Management Warning
Light will be solid yellow when the vehicle
is approaching a lane marker. The
warning light will flash when the vehicle is
crossing the lane marker Ú page 171.
Fuel Level Sensor Failure Warning Light
This warning light will illuminate along
with a dedicated message on the display
if a problem is detected with the Fuel
Level Sensor. If this light comes on see
an authorized dealer immediately.
Low Fuel Warning Light
When the fuel level reaches
approximately 2 gal (7.5 L), this light will
turn on and a chime will sound. The light
will remain on until fuel is added.
Low Washer Fluid Warning Light —
If Equipped
This warning light will illuminate when the
windshield washer fluid is low
Ú page 337.
Engine Check/Malfunction Indicator
Warning Light (MIL)
The Engine Check/Malfunction Indicator
Light (MIL) is a part of an Onboard
Diagnostic System called OBD II that
monitors engine and automatic
transmission control systems. This warning light
will illuminate when the ignition is in the ON/RUN
position before engine start. If the bulb does not
come on when turning the ignition switch from OFF
to ON/RUN, have the condition checked promptly.
Certain conditions, such as a loose or missing gas
cap, poor quality fuel, etc., may illuminate the light
after engine start. The vehicle should be serviced if
the light stays on through several typical driving
styles. In most situations, the vehicle will drive
normally and will not require towing. When the engine is running, the MIL may flash to
alert serious conditions that could lead to
immediate loss of power or severe catalytic
converter damage. The vehicle should be serviced
by an authorized dealer as soon as possible if this
occurs.
WARNING!
A malfunctioning catalytic converter, as
previously referenced, can reach higher
temperatures than in normal operating
conditions. This can cause a fire if you drive
slowly or park over flammable substances such
as dry plants, wood, cardboard, etc. This could
result in death or serious injury to the driver,
occupants or others.
CAUTION!
Prolonged driving with the Malfunction Indicator
Light (MIL) on could cause damage to the
vehicle control system. It also could affect fuel
economy and driveability. If the MIL is flashing,
severe catalytic converter damage and power
loss will soon occur. Immediate service is
required.

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GETTING TO KNOW YOUR INSTRUMENT PANEL117
Selec-Speed Control Indicator Light —
If Equipped
This light will turn on when Selec-Speed
Control is activated.
To activate Selec-Speed Control, assure
the vehicle is 4WD Low and push the button on the
Instrument Panel Ú page 134.
NOTE:If the vehicle is not in 4WD Low, “To Enter
Selec-Speed Shift to 4WD Low” will appear in the
instrument cluster display.
BLUE INDICATOR LIGHTS
High Beam Indicator Light
This indicator light will illuminate to
indicate that the high beam headlights
are on. With the low beams activated,
push the multifunction lever forward
(toward the front of the vehicle) to turn on the high
beams. Pull the multifunction lever rearward
(toward the rear of the vehicle) to turn off the high
beams. If the high beams are off, pull the lever
toward you for a temporary high beam on, “flash to
pass” scenario.
GRAY INDICATOR LIGHTS
Night Vision Suppressed Indicator Light —
If Equipped
This light alerts the driver that the Night
Vision Warning System status is
Suppressed Ú page 177.
ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated
Onboard Diagnostic system called OBD II. This
system monitors the performance of the
emissions, engine, and transmission control
systems. When these systems are operating
properly, your vehicle will provide excellent
performance and fuel economy, as well as engine
emissions well within current government
regulations.
If any of these systems require service, the OBD II
system will turn on the Malfunction Indicator Light
(MIL). It will also store diagnostic codes and other
information to assist your service technician in
making repairs. Although your vehicle will usually
be driveable and not need towing, see an
authorized dealer for service as soon as possible.
ONBOARD DIAGNOSTIC SYSTEM
(OBD II) C
YBERSECURITY
Your vehicle is required to have OBD II and a
connection port to allow access to information
related to the performance of your emissions
controls. Authorized service technicians may need
to access this information to assist with the
diagnosis and service of your vehicle and
emissions system Ú page 203.
CAUTION!
Prolonged driving with the MIL on could cause
further damage to the emission control
system. It could also affect fuel economy and
driveability. The vehicle must be serviced
before any emissions tests can be performed.
If the MIL is flashing while the vehicle is
running, severe catalytic converter damage
and power loss will soon occur. Immediate
service is required.3

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118GETTING TO KNOW YOUR INSTRUMENT PANEL
EMISSIONS INSPECTION AND
MAINTENANCE PROGRAMS
In some localities, it may be a legal requirement to
pass an inspection of your vehicle's emissions
control system. Failure to pass could prevent
vehicle registration. For states that require an Inspection and
Maintenance (I/M), this check verifies
the Malfunction Indicator Light (MIL) is
functioning and is not on when the
engine is running, and that the OBD II system is
ready for testing.
Normally, the OBD II system will be ready. The
OBD II system may not be ready if your vehicle was
recently serviced, recently had a depleted battery
or a battery replacement. If the OBD II system
should be determined not ready for the I/M test,
your vehicle may fail the test.
Your vehicle has a simple ignition actuated test,
which you can use prior to going to the test station.
To check if your vehicle's OBD II system is ready,
you must do the following:

1. Cycle the ignition switch to the ON position, but do not crank or start the engine.

NOTE:If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the Malfunction
Indicator Light (MIL) symbol come on as part of
a normal bulb check.
3. Approximately 15 seconds later, one of two things will happen:
The MIL will flash for about 10 seconds and
then return to being fully illuminated until
you turn OFF the ignition or start the engine.
This means that your vehicle's OBD II
system is not ready and you should not
proceed to the I/M station.
The MIL will not flash at all and will remain
fully illuminated until you place the ignition
in the off position or start the engine. This
means that your vehicle's OBD II system is
ready and you can proceed to the I/M
station.
If your OBD II system is not ready, you should see
an authorized dealer or repair facility. If your
vehicle was recently serviced or had a battery
failure or replacement, you may need to do nothing
more than drive your vehicle as you normally would
in order for your OBD II system to update. A
recheck with the previously mentioned test routine
may then indicate that the system is now ready.
Regardless of whether your vehicle's OBD II system
is ready or not, if the MIL is illuminated during
normal vehicle operation you should have your
vehicle serviced before going to the I/M station.
The I/M station can fail your vehicle because the
MIL is on with the engine running.
WARNING!
ONLY an authorized service technician should
connect equipment to the OBD II connection
port in order to read the VIN, diagnose, or
service your vehicle.
If unauthorized equipment is connected to the
OBD II connection port, such as a
driver-behavior tracking device, it may:
Be possible that vehicle systems,
including safety related systems, could be
impaired or a loss of vehicle control could
occur that may result in an accident
involving serious injury or death.
Access, or allow others to access, infor -
mation stored in your vehicle systems,
including personal information.

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138STARTING AND OPERATING
AIR SUSPENSION MODES
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 Ú page 204.
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
height Úpage 204.
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
leveling system Ú
page 204.
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
Úpage 204.
NOTE:This mode is intended to be enabled with the
ignition on.
Wheel Alignment Mode
Before performing a wheel alignment this mode
must be enabled Ú page 204.
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
through the radio Ú page 204.
INSTRUMENT CLUSTER DISPLAY
M
ESSAGES
When the appropriate conditions exist, a message
will appear in the instrument cluster Ú page 98.
OPERATION
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.

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