OBD port JEEP GRAND CHEROKEE 2023 Owners Manual

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POWER SUNROOF — IF EQUIPPED .................... 83 Single Pane Power Sunroof — If Equipped ....83
Dual Pane Power Sunroof —If Equipped ........85
HOOD ...................................................................... 87
Opening The Hood............................................87
Closing The Hood .............................................87
LIFTGATE ................................................................. 88
To Unlock/Open The Liftgate...........................88
To Lock/Close The Liftgate ..............................88
Adjustable Power Liftgate Height ....................89
Hands-Free Liftgate — If Equipped .................89
Cargo Area Features ........................................90
ROOF LUGGAGE RACK — IF EQUIPPED ............. 93
GETTING TO KNOW YOUR
INSTRUMENT PANEL
DIGITAL INSTRUMENT CLUSTER ......................... 95
Digital Instrument Cluster Descriptions ..........96
ANALOG INSTRUMENT CLUSTER ........................ 97
Analog Instrument Cluster Descriptions .........98 INSTRUMENT CLUSTER DISPLAY.........................98
Location And Controls ......................................98
Engine Oil Life Reset .................................... 100
Display And Messages .................................. 101
Instrument Cluster Display Menu Items ..... 103
Head Up Display (HUD) — If Equipped ......... 105Battery Saver On/Battery Saver Mode
Message — Electrical Load Reduction
Actions — If Equipped ................................... 106
WARNING LIGHTS AND MESSAGES ................ 108
Red Warning Lights ....................................... 108
Yellow Warning Lights ................................... 111Yellow Indicator Lights .................................. 114
Green Indicator Lights .................................. 115
White Indicator Lights ................................... 116Blue Indicator Lights ..................................... 117
Gray Indicator Lights ..................................... 117
ONBOARD DIAGNOSTIC SYSTEM — OBD II ..... 117
Onboard Diagnostic System
(OBD II) Cybersecurity ................................... 117
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ......................................................... 118
STARTING AND OPERATING
STARTING THE ENGINE ...................................... 119
Automatic Transmission ............................... 119
Keyless Enter ‘n Go™ — Ignition .................. 119
Normal Starting ............................................ 119
AutoPark ........................................................ 120
Extended Park Starting ................................. 121
If Engine Fails To Start .................................. 122Cold Weather Operation
(Below –22°F Or −30°C) ............................ 122
After Starting ................................................. 122
ENGINE BREAK-IN RECOMMENDATIONS ......... 122
PARKING BRAKE ................................................. 123
Electric Park Brake (EPB) ............................. 123Auto Park Brake ............................................ 125
SafeHold ........................................................ 125
Hold ‘N Go — If Equipped ............................. 125Brake Maintenance Mode ............................ 125
AUTOMATIC TRANSMISSION ............................. 126
Ignition Park Interlock................................... 127
Brake/Transmission Shift Interlock (BTSI)
System .......................................................... 1278-Speed Automatic Transmission ............... 127
SPORT MODE — IF EQUIPPED............................ 131

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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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SAFETY303
SAFETY TIPS
TRANSPORTING PASSENGERS
NEVER TRANSPORT PASSENGERS IN THE CARGO
AREA.
TRANSPORTING PETS
Air Bags deploying in the front seat could harm
your pet. An unrestrained pet will be thrown about
and possibly injured, or injure a passenger during
panic braking or in a collision.
Pets should be restrained in the rear seat (if
equipped) in pet harnesses or pet carriers that are
secured by seat belts.
CONNECTED VEHICLES
Privacy of any wireless and wired communications
cannot be assured. Third parties may unlawfully
intercept information and private communications
without your consent. For further information, refer
to “Data Collection & Privacy” in your Uconnect
Owner’s Manual Supplement or “Onboard
Diagnostic System (OBD II) Cybersecurity”
Úpage 117.
SAFETY CHECKS YOU SHOULD MAKE
I
NSIDE THE VEHICLE
Seat Belts
Inspect the seat belt system periodically, checking
for cuts, frays, and loose parts. Damaged parts
must be replaced immediately. Do not
disassemble or modify the system.
If your vehicle is involved in a collision, or if you
have questions regarding the seat belt or retractor
conditions, take your vehicle to an authorized FCA
dealer or authorized FCA Certified Collision Care
Program facility for inspection.
Air Bag Warning Light
The Air Bag Warning Light will turn on for
four to eight seconds as a bulb check
when the ignition switch is first placed in
the ON/RUN position. If the light is either
not on during starting, stays on, or turns on while
driving, have the system inspected at an
authorized dealer as soon as possible. After the
bulb check, this light will illuminate with a single
chime when a fault with the Air Bag System has
been detected. It will stay on until the fault is
removed. If the light comes on intermittently or
remains on while driving, have an authorized
dealer service the vehicle immediately
Ú page 269.
If your vehicle is equipped with a split rear
seat, make sure the tether strap does not slip
into the opening between the seatbacks as
you remove slack in the strap.
WARNING!
Do not leave children or animals inside parked
vehicles in hot weather. Interior heat buildup
may cause serious injury or death.
It is extremely dangerous to ride in a cargo
area, inside or outside of a vehicle. In a colli -
sion, people riding in these areas are more
likely to be seriously injured or killed.
Do not allow people to ride in any area of your
vehicle that is not equipped with seats and
seat belts.
Be sure everyone in your vehicle is in a seat
and using a seat belt properly.
WARNING!
WARNING!
It is not possible to know or to predict all of the
possible outcomes if your vehicle’s systems are
breached. 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.
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