2023 JEEP GRAND CHEROKEE transmission fluid

8
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS ......................... 307
ASSIST AND SOS SYSTEM — IF EQUIPPED ...... 307
JACKING AND TIRE CHANGING ........................ 310 Preparations For Jacking .............................. 311Jack Location ................................................. 311
Spare Tire Stowage ...................................... 313Spare Tire Removal ....................................... 313
Jacking Instructions ...................................... 315
JUMP STARTING................................................... 319
Preparations For Jump Start......................... 320Jump Starting Procedure .............................. 320
REFUELING IN EMERGENCY .............................. 321
IF YOUR ENGINE OVERHEATS ............................ 322
MANUAL PARK RELEASE .................................. 323
FREEING A STUCK VEHICLE .............................. 325
TOWING A DISABLED VEHICLE .......................... 326
Rear-Wheel Drive Models ............................. 327
Four-Wheel Drive Models.............................. 328Emergency Tow Hooks — If Equipped .......... 328 ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .................................................................. 329
EVENT DATA RECORDER (EDR) ........................ 329
SERVICING AND MAINTENANCE
SCHEDULED SERVICING ................................... 330
Maintenance Plan ......................................... 331
ENGINE COMPARTMENT .................................... 334
2.0L Engine .................................................. 334
3.6L Engine ................................................... 335
5.7L Engine ................................................... 336
Checking Oil Level ........................................ 337Adding Washer Fluid ..................................... 337
Maintenance-Free Battery ........................... 338Pressure Washing ......................................... 338
VEHICLE MAINTENANCE..................................... 338
Engine Oil ....................................................... 338
Engine Oil Filter ............................................. 339Engine Air Cleaner Filter ............................... 339
Air Conditioner Maintenance ....................... 340
Accessory Drive Belt Inspection ................... 342Body Lubrication ........................................... 343 Windshield Wiper Blades.............................. 343
Exhaust System ............................................ 345
Cooling System.............................................. 346
Brake System ............................................... 350
Automatic Transmission ............................... 351
Front/Rear Axle Fluid ................................... 351
Transfer Case ............................................... 352Fuses.............................................................. 352
Bulb Replacement ........................................ 374
TIRES ..................................................................... 374
Tire Safety Information ................................ 374Tires — General Information ......................... 382
Tire Types....................................................... 385Spare Tires — If Equipped ............................ 386
Wheel And Wheel Trim Care ........................ 388Snow Traction Devices ................................. 389
Tire Rotation Recommendations ................ 391
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES ...................................... 391
Treadwear...................................................... 391
Traction Grades ............................................. 392Temperature Grades..................................... 392

23_WL_OM_EN_USC_t.book Page 8

GETTING TO KNOW YOUR VEHICLE65
Mist
Use the Mist feature when weather conditions
make occasional usage of the wipers necessary.
Push the lever upward to the MIST position and
release for a single wiping cycle.
NOTE:The Mist feature does not activate the washer
pump; therefore, no washer fluid will be sprayed on
the windshield. The washer function must be used
in order to spray the windshield with washer fluid.
For information on wiper care and replacement,
see Úpage 343.
RAIN SENSING WIPERS — IF EQUIPPED
This feature senses rain or snowfall on the
windshield and automatically activates the wipers.
Rotate the end of the windshield wiper lever to one
of the four detent positions to activate this feature.
The sensitivity of the system is adjustable from the
windshield wiper lever. Wiper sensitivity position 1
is the least sensitive, and wiper sensitivity position
4 is the most sensitive.
NOTE:
The Rain Sensing feature will not operate when
the wiper switch is in the low, high, or OFF posi -
tion. Only in one of the intermittent positions.
The Rain Sensing feature may not function prop -
erly when ice or dried saltwater is present on the
windshield.
Use of products containing wax or silicone may
reduce rain sensor performance.
The Rain Sensing feature can be turned on and
off through the Uconnect system Ú page 204.The Rain Sensing system has protective features
for the wiper blades and arms. It will not operate
under the following conditions:
Low Temperature Wipe Inhibit
— The Rain
Sensing feature will not operate when the igni -
tion is first placed in the ON/RUN position, when
the vehicle is stationary and the outside
temperature is below 32°F (0°C), unless the
wiper control on the windshield wiper lever is
moved, the vehicle speed becomes greater than
3 mph (5 km/h) or the outside temperature
rises above freezing.
Neutral Wipe Inhibit — The Rain Sensing feature
will not operate when the ignition is placed in
the ON/RUN position, when the transmission
gear selector is in the NEUTRAL position and the
vehicle speed is less than 3 mph (5 km/h),
unless the wiper control on the windshield wiper
lever is moved, the vehicle speed is greater than
3 mph (5 km/h) or the gear selector is moved
out of the NEUTRAL position.
Remote Start Mode Inhibit — On vehicles
equipped with the Remote Start system, Rain
Sensing wipers are not operational when the
vehicle is in the Remote Start mode. Once the
operator is in the vehicle and has placed the
ignition switch in the ON/RUN position, rain
sensing wiper operation can resume, if it has
been selected, and no other inhibit conditions
(mentioned previously) exist.
WARNING!
Sudden loss of visibility through the windshield
could lead to a collision. You might not see other
vehicles or other obstacles. To avoid sudden
icing of the windshield during freezing weather,
warm the windshield with the defroster before
and during windshield washer use.
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102GETTING TO KNOW YOUR INSTRUMENT PANEL
Unstored Messages Until RUN
These messages deal primarily with the Remote
Start feature. This message type is displayed
until the ignition is in the RUN state. Examples of
this message type are “Remote Start Canceled - Door Ajar” and “Press Brake Pedal and Push
Button to Start”.
Five Second Unstored Messages

When the appropriate conditions occur, this
type of message takes control of the main display area for five seconds and then returns to
the previous screen. An example of this
message type is “Automatic High Beams On”.
Includes the following, but not limited to:
The Reconfigurable Telltales section is divided into the white or yellow telltales area on the left, and the green or red telltales area on the right. Vehicle Speed is Too High to Shift to R
Front Seat Belts UnbuckledDriver Seat Belt Unbuckled
Doors Open Passenger Seat Belt UnbuckledTraction Control Off
Vehicle Speed Too High To Shift to D Washer Fluid LowOil Pressure Low
Hood Open Oil Change DueFuel Low
Shift Not Allowed Service Anti-lock Brake SystemService Electronic Throttle Control
Service Shifter Service Power SteeringCruise Off
Vehicle Speed is Too High to Shift to P Cruise ReadyACC Override
Service Transmission Cruise Set To XXX mph or km/hClose Fuel Door
Liftgate Open Vehicle Not In ParkService Tire Pressure System
Door Open Park Brake EngagedBrake Fluid Low
Service Air Bag Warning Light Lights OnEngine Temperature Hot
Remote Start Disabled Start To Reset Right Front Turn Signal Light OutRight Rear Turn Signal Light Out
Service Air Bag System Left Front Turn Signal Light OutLeft Rear Turn Signal Light Out
Remote Start Canceled Liftgate Open Ignition OnCheck The Rear Seat
Remote Start Canceled Time Expired Remote Start Active Push Start ButtonRemote Start Canceled Fuel Low
Remote Start Canceled Hood Open Remote Start Canceled Door Open

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110GETTING TO KNOW YOUR INSTRUMENT PANEL
Hood Open Warning Light
This warning light will illuminate when the
hood is left open and not fully closed.
NOTE:If the vehicle is moving, there will also be a single
chime.
Liftgate Open Warning Light
This warning light will illuminate when the
liftgate is open.
NOTE:If the vehicle is moving, there will also be a single
chime.
Night Vision Animal Warning Light
The Night Vision Animal Warning Light
will illuminate in red when an animal is
detected directly in the vehicle’s path,
near the headlights, and a collision is
possible Ú page 177.
If enabled, a chime will sound and a video pop-up
may display when a detection occurs.
Night Vision Pedestrian Warning Light
The Night Vision Pedestrian Warning
Light will illuminate in red when a
pedestrian is detected directly in the
vehicle’s path, near the headlights, and a
collision is possible Ú page 177. If enabled, a chime will sound and a video pop-up
may display when a detection occurs.
Oil Pressure Warning Light
This warning light will illuminate to
indicate low engine oil pressure. If the
light turns on while driving, stop the
vehicle, shut off the engine as soon as
possible, and contact an authorized dealer. A
chime will sound when this light turns on.
Do not operate the vehicle until the cause is
corrected. This light does not indicate how much oil
is in the engine. The engine oil level must be
checked under the hood.
Oil Temperature Warning Light
This warning light will illuminate to
indicate the engine oil temperature is
high. If the light turns on while driving,
stop the vehicle and shut off the engine
as soon as possible. Wait for oil temperature to
return to normal levels.
Rear Seat Belt Reminder Warning Light —
If Equipped
This light indicates when a rear seat belt
is unbuckled in the second row. When
the ignition is first placed in the ON/RUN
position, and if a seat belt in the second
row is unbuckled, a light corresponding to the
specific seat will turn on in the upper right portion of the instrument cluster display, momentarily
replacing the configurable corner information. If a
second row seat belt that was buckled at the start
of the trip is unbuckled, the Rear Seat Belt
Reminder Light will change from the buckled to the
unbuckled symbol, and a chime will sound
Ú
page 269.
Seat Belt Reminder Warning Light
This warning light indicates when the
driver or passenger seat belt is
unbuckled. When the ignition is first
placed in the ON/RUN position and if the
driver’s seat belt is unbuckled, a chime will sound
and the light will turn on. When driving, if the driver
or front passenger seat belt remains unbuckled,
the Seat Belt Reminder Light will flash or remain on
continuously and a chime will sound Ú page 269.

Transmission Temperature Warning Light —
If Equipped

This warning light will illuminate to warn
of a high transmission fluid temperature.
This may occur with strenuous usage
such as trailer towing. If this light turns
on, stop the vehicle and run the engine at idle or
slightly faster, with the transmission in PARK (P) or
NEUTRAL (N), until the light turns off. Once the light
turns off, you may continue to drive normally.

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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.

23_WL_OM_EN_USC_t.book Page 112

STARTING AND OPERATING129
NEUTRAL (N)
Use this range when the vehicle is standing for
prolonged periods with the engine running. Apply
the parking brake and shift the transmission into
PARK (P) if you must exit the vehicle.
DRIVE (D)
This range should be used for most city and
highway driving. It provides the smoothest upshifts
and downshifts, and the best fuel economy. The
transmission automatically upshifts through all
forward gears. When frequent transmission shifting occurs (such
as when operating the vehicle under heavy loading
conditions, in hilly terrain, traveling into strong
head winds, or while towing a heavy trailer), use
the AutoStick shift control to select a lower gear
Ú
page 130. Under these conditions, using a lower
gear will improve performance and extend
transmission life by reducing excessive shifting
and heat buildup.
During cold temperatures, transmission operation
may be modified depending on engine and
transmission temperature as well as vehicle
speed. This feature improves warm-up time of the
engine and transmission to achieve maximum
efficiency. Engagement of the torque converter
clutch is inhibited until the transmission fluid is
warm. Normal operation will resume once the
transmission temperature has risen to a suitable
level.
Transmission Limp Home Mode
Transmission function is monitored electronically
for abnormal conditions. If a condition is detected
that could result in transmission damage,
Transmission Limp Home Mode is activated. In this
mode, the transmission may operate only in
certain gears, or may not shift at all. Vehicle
performance may be severely degraded and the
engine may stall. In some situations, the
transmission may not re-engage if the engine is
turned off and restarted. The Malfunction Indicator Light (MIL) may be illuminated. A message in the
instrument cluster will inform the driver of the
more serious conditions, and indicate what actions
may be necessary.
In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:
NOTE:In cases where the instrument cluster message
indicates the transmission may not re-engage after
engine shutdown, perform this procedure only in a
desired location (preferably, at an authorized
dealer).

1. Stop the vehicle.

2. Shift the transmission into PARK (P), if
possible. If not, shift the transmission to
NEUTRAL (N).
3. Push and hold the ignition switch until the engine turns off.
4. Wait approximately 30 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the problem is no longer detected, the
transmission will return to normal operation.
WARNING!
Do not coast in NEUTRAL and never turn off the
ignition to coast down a hill. These are unsafe
practices that limit your response to changing
traffic or road conditions. You might lose control
of the vehicle and have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for any
other reason with the transmission in NEUTRAL
can cause severe transmission damage.
For Recreational Towing see Ú page 195.
For Towing A Disabled Vehicle see Ú page 326.
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STARTING AND OPERATING201
Standing Water
Avoid driving in standing water deeper than
24 inches (61 cm) with air suspension or
21 inches (53 cm) without air suspension, and
reduce speed appropriately to minimize wave
effects. Maximum speed is 5 mph (8 km/h).
Maintenance
After driving through deep water, inspect your
vehicle fluids and lubricants (engine oil,
transmission oil, axle, transfer case) to ensure the
fluids have not been contaminated. Contaminated
fluid (milky, foamy in appearance) should be
flushed/changed as soon as possible to prevent
component damage.
Driving In Snow, Mud And Sand
In heavy snow, when pulling a load, or for
additional control at slower speeds, shift the
transmission to a low gear and shift the transfer
case to 4WD LOW if necessary Ú page 131. Only
shift into a lower gear to maintain forward motion.
Over-revving the engine can spin the wheels and
traction will be lost.
Avoid abrupt downshifts on icy or slippery roads,
because engine braking may cause skidding and
loss of control.
Hill Climbing
NOTE:Before attempting to climb a hill, determine the
conditions at the crest and/or on the other side.
Before climbing a steep hill, shift the transmission
to a lower gear and shift the transfer case to 4WD
LOW. Use FIRST gear and 4WD LOW for very steep
hills.
If you stall or begin to lose forward motion while
climbing a steep hill, allow your vehicle to come to
a stop and immediately apply the brakes. Restart
the engine, and shift into REVERSE (R). Back slowly
down the hill, allowing the compression braking of
the engine to help regulate your speed. If the
brakes are required to control vehicle speed, apply
them lightly and avoid locking or skidding the tires. Remember, never drive diagonally across a hill.
Always drive straight up or down.
If the wheels start to slip as you approach the crest
of a hill, ease off the accelerator and maintain
forward motion by turning the front wheels slowly.
This may provide a fresh “bite” into the surface and
will usually provide traction to complete the climb.
Traction Downhill
When descending mountains or hills, use Hill
Descent Control or Selec-Speed Control to avoid
repeated heavy braking.
If not equipped with Hill Descent Control or
Selec-Speed Control use the following procedure:
Shift the transmission into a low gear, and the
transfer case into 4WD LOW range. Let the vehicle
go slowly down the hill with all four wheels turning
against engine compression drag. This will permit
you to control the vehicle speed and direction.
When descending mountains or hills, repeated
braking can cause brake fade with loss of braking
control. Avoid repeated heavy braking by
downshifting the transmission whenever possible.
WARNING!
If the engine stalls, you lose forward motion, or
cannot make it to the top of a steep hill or grade,
never attempt to turn around. To do so may
result in tipping and rolling the vehicle. Always
back carefully straight down a hill in REVERSE
gear. Never back down a hill in NEUTRAL using
only the brake.
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