2023 JEEP GRAND CHEROKEE oil type

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 INSTRUMENT PANEL101
Vehicles Equipped With Keyless Enter ‘n Go™
Ignition
Use the steering wheel instrument cluster display
controls for the following procedure(s):

1. Without pressing the brake pedal, push the ENGINE START/STOP button and place the
ignition in the ON/RUN position (do not start
the engine).

2. Push and release the down arrow button to
scroll downward through the main menu to
“Vehicle Info”.
3. Push and release the right arrow button to access the “Oil Life” screen.
4. Push and hold the OK button to reset oil life. If
conditions are met, the gauge and numeric
display will update to show 100%. If conditions
are not met a pop-up message of “To reset oil
life engine must be off with ignition in run” will
be displayed (for five seconds), and the user
will remain at the Oil Life screen.
5. Push and release the up or down arrow
button to exit the submenu screen.
NOTE:If the indicator message illuminates when you start
the vehicle, the oil change indicator system did not
reset. If necessary, repeat this procedure. Secondary Method Of Resetting Engine Oil Life

1. Without pressing the brake pedal, push the
ENGINE START/STOP button and place the
ignition to the ON/RUN position (do not start
the engine).

2. Fully press the accelerator pedal, slowly, three times within 10 seconds.
3. Without pushing the brake pedal, push the ENGINE START/STOP button once to return the
ignition to the OFF position.
NOTE:If the indicator message illuminates when you start
the vehicle, the oil change indicator system did not
reset. If necessary, repeat this procedure.
DISPLAY AND MESSAGES
The instrument cluster display is located in the
center portion of the cluster and consist of multiple
sections:
Main Screen — The inner ring of the display will
illuminate in black under normal conditions,
yellow for non critical warnings and red for crit -
ical warnings
Submenu Dots — Whenever there are
submenus available, the position within the
submenus is shown here
Reconfigurable Telltales/Information
Gear Selector Status (PRND)
Driver Interactive Display (Compass, Temp,
Range to Empty, Trip A, Trip B, Average Fuel
Economy, Current Fuel Economy and Time)
Air Suspension Status — If Equipped
Four-Wheel Drive (4WD) Status — If Equipped
The instrument cluster display will normally display
the main menu or the screens of a selected feature
of the main menu. The main display area also
displays pop-up messages and warning or
information messages. These pop-up messages
fall into several categories:
Five Second Stored 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. Most of the messages of
this type are then stored (as long as the condi-
tion that activated it remains active) and can be
reviewed from the “Messages” main menu item.
Examples of this message type are “Right Front
Turn Signal Lamp Out” and “Low Tire Pressure”.
Unstored Messages
This message type is displayed indefinitely or
until the condition that activated the message is
cleared. Examples of this message type are
“Turn Signal On” (if a turn signal is left on) and
“Lights On” (if driver leaves the vehicle with the
lights on).
3

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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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122STARTING AND OPERATING
4. If the engine fails to start after eight attempts, allow the starter to cool for at least
10 minutes, then repeat the Extended Park
Starting procedure.
IF ENGINE FAILS TO START
If the engine fails to start after you have followed
the “Normal Starting” procedure and has not
experienced an Extended Park condition as
defined previously, it may be flooded. Push the
accelerator pedal all the way to the floor and hold
it there while the engine is cranking. This should
clear any excess fuel in case the engine is flooded.
The starter motor will engage automatically, run for
10 seconds, and then disengage. Once this occurs,
release the accelerator pedal and brake pedal,
wait 10 to 15 seconds, then repeat the “Normal
Starting” procedure.
COLD WEATHER OPERATION
(B
ELOW –22°F OR −30°C)
To ensure reliable starting at these temperatures,
use of an externally powered electric engine block
heater (available from an authorized dealer) is
recommended.
AFTER STARTING
The idle speed is controlled automatically, and it
will decrease as the engine warms up.
ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine
and drivetrain (transmission and axle) in your
vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km),
speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
Brief full-throttle acceleration within the limits of
local traffic laws contributes to a good break-in.
Wide-open throttle acceleration in low gear can be
detrimental and should be avoided.
The engine oil installed in the engine at the factory
is a high-quality energy conserving type lubricant.
Oil changes should be consistent with anticipated
climate conditions under which vehicle operations
will occur Ú page 338.
CAUTION!
To prevent damage to the starter, do not crank
continuously for more than 10 seconds at a
time. Wait 10 to 15 seconds before trying again.
WARNING!
Never pour fuel or other flammable liquid into
the throttle body air inlet opening in an
attempt to start the vehicle. This could result
in flash fire causing serious personal injury.
Do not attempt to push or tow your vehicle to
get it started. Vehicles equipped with an auto -
matic transmission cannot be started this
way. Unburned fuel could enter the catalytic
converter and once the engine has started,
ignite and damage the converter and vehicle.
If the vehicle has a discharged battery,
booster cables may be used to obtain a start
from a booster battery or the battery in
another vehicle. This type of start can be
dangerous if done improperly Ú page 320.
CAUTION!
To prevent damage to the starter, do not
continuously crank the engine for more than 10
seconds at a time. Wait 10 to 15 seconds before
trying again.

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SERVICING AND MAINTENANCE337
CHECKING OIL LEVEL
To ensure proper engine lubrication, the engine oil
must be maintained at the correct level. Check the
oil level at regular intervals, such as every fuel
stop. The best time to check the engine oil level is
about five minutes after a fully warmed up engine
is shut off.
Checking the oil while the vehicle is on level ground
will improve the accuracy of the oil level readings.
There are four possible dipstick types:
Crosshatched zone.
Crosshatched zone marked SAFE.
Crosshatched zone marked with MIN at the low
end of the range and MAX at the high end of the
range.
Crosshatched zone marked with dimples at the
MIN and the MAX ends of the range.
NOTE:Always maintain the oil level within the crosshatch
markings on the dipstick.
Adding 1 qt (1.0 L) of oil when the reading is at the
low end of the dipstick range will raise the oil level
to the high end of the range marking.
NOTE:Always maintain the oil level within the crosshatch
markings on the dipstick.
NOTE:Use care when filling under hood fluids such as
engine oil, washer fluid, antifreeze, etc., to
minimize spillage onto the top of the engine. Any
excess fluid that is spilled onto the top of the
engine should be removed using compressed air
or an absorbent cloth.
ADDING WASHER FLUID
The instrument cluster display will indicate when
the washer fluid level is low. When the sensor
detects a low fluid level, the Low Washer Fluid
Warning Light will illuminate and the “Washer Fluid
Low” message will display.
The fluid reservoir for the windshield washers and
the rear window washer is shared. The fluid
reservoir is located in the engine compartment, be
sure to check the fluid level at regular intervals. Fill
the reservoir with windshield washer solvent only
(not radiator antifreeze). When refilling the washer
fluid reservoir, take some washer fluid and apply it
to a cloth or towel and wipe clean the wiper blades,
this will help blade performance. To prevent
freeze-up of your windshield washer system in cold
weather, select a solution or mixture that meets or
exceeds the temperature range of your climate.
This rating information can be found on most
washer fluid containers.
NOTE:Use care when filling under hood fluids such as
engine oil, washer fluid, antifreeze, etc., to
minimize spillage onto the top of the engine. Any
excess fluid that is spilled onto the top of the
engine should be removed using compressed air
or an absorbent cloth.
WARNING!
Commercially available windshield washer
solvents are flammable. They could ignite and
burn you. Care must be exercised when filling or
working around the washer solution.
CAUTION!
Do not travel with the windshield washer fluid
reservoir empty: the windshield washers are
essential for improving visibility.
8

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SERVICING AND MAINTENANCE339
NOTE:Hemi engines at times can tick right after startup
and then quiet down after approximately 30
seconds. This is normal and will not harm the
engine. This characteristic can be caused by short
drive cycles. For example, if the vehicle is started
then shut off after driving a short distance. Upon
restarting, you may experience a ticking sound.
Other causes could be if the vehicle is unused for
an extended period of time, incorrect oil, extended
oil changes or extended idling. If the engine
continues to tick or if the Malfunction Indicator
Light (MIL) comes on, see the nearest authorized
dealer.
American Petroleum Institute (API)
Approved Engine Oil
These symbols mean that the oil has been certified
by the API. The manufacturer only recommends API
trademark oils.
The API Starburst trademark certifies
0W-20, 0W-30 and 5W-30 engine oils.
The API Donut trademark certifies 0W-40
and 5W-40 engine oil.
Synthetic Engine Oils
Your engine was designed for synthetic engine oils,
only use synthetic API approved engine oils.
Synthetic engine oils which do not have both the
correct API trademark and the correct SAE viscosity
grade numbers should not be used.
Materials Added To Engine Oil
The manufacturer strongly recommends against
the addition of any additives (other than leak
detection dyes) to the engine oil. Engine oil is an
engineered product and its performance may be
impaired by supplemental additives.
Disposing Of Used Engine Oil And Oil
Filters
Care should be taken in disposing of used engine
oil and oil filters from your vehicle. Used oil and oil
filters, indiscriminately discarded, can present a
problem to the environment. Contact an
authorized dealer, service station or governmental
agency for advice on how and where used oil and
oil filters can be safely discarded in your area.
ENGINE OIL FILTER
The engine oil filter should be replaced with a new
filter at every engine oil change.
Engine Oil Filter Selection
A full-flow type disposable oil filter should be used
for replacement. The quality of replacement filters
varies considerably. Only high quality Mopar®
filters should be used. If a Mopar® Engine Oil Filter
is unavailable only use filters that meet or exceed
SAE/USCAR-36 Filter Performance Requirements.
ENGINE AIR CLEANER FILTER
For the proper maintenance intervals Úpage 331.
CAUTION!
Do not use chemical flushes in your engine oil as
the chemicals can damage your engine. Such
damage is not covered by the New Vehicle
Limited Warranty.
WARNING!
The air induction system (air cleaner, hoses,
etc.) can provide a measure of protection in the
case of engine backfire. Do not remove the air
induction system (air cleaner, hoses, etc.) unless
such removal is necessary for repair or
maintenance. Make sure that no one is near the
engine compartment before starting the vehicle
with the air induction system (air cleaner, hoses,
etc.) removed. Failure to do so can result in
serious personal injury.
8

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348SERVICING AND MAINTENANCE
Please review these recommendations for using
Organic Additive Technology (OAT) engine coolant
that meets the requirements of the manufacturer
Material Standard MS.90032. When adding
engine coolant:
We recommend using Mopar® Antifreeze/
Coolant 10 Year/150,000 Mile (240,000 km)
Formula OAT that meets the requirements of the
manufacturer Material Standard MS.90032.
Mix a minimum solution of 50% OAT engine
coolant that meets the requirements of the
manufacturer Material Standard MS.90032
and distilled water. Use higher concentrations
(not to exceed 70%) if temperatures below
−34°F (−37°C) are anticipated. Please contact
an authorized dealer for assistance.
Use only high purity water such as distilled or
deionized water when mixing the water/engine
coolant solution. The use of lower quality water
will reduce the amount of corrosion protection
in the engine cooling system.
NOTE:
It is the owner's responsibility to maintain the
proper level of protection against freezing
according to the temperatures occurring in the
area where the vehicle is operated.
Use care when filling under hood fluids such as
engine oil, washer fluid, antifreeze, etc., to mini -
mize spillage onto the top of the engine. Any excess fluid that is spilled onto the top of the
engine should be removed using compressed
air or an absorbent cloth.
Some vehicles require special tools to add
coolant properly. Failure to fill these systems
properly could lead to severe internal engine
damage. If any coolant is needed to be added to
the system, please contact a local authorized
dealer.
Mixing engine coolant types is not recom
-
mended and can result in cooling system
damage. If HOAT and OAT coolant are mixed in
an emergency, have an authorized dealer drain,
flush, and refill with OAT coolant (conforming to
MS.90032) as soon as possible.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
engine coolant (antifreeze), and to ensure that
engine coolant will return to the radiator from the
coolant expansion bottle/recovery tank (if
equipped).
The cap should be inspected and cleaned if there
is any accumulation of foreign material on the
sealing surfaces.
Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze) is
a regulated substance requiring proper disposal.
Check with your local authorities to determine the
disposal rules for your community. To prevent
ingestion by animals or children, do not store
ethylene glycol-based coolant in open containers
or allow it to remain in puddles on the ground,
clean up any ground spills immediately. If ingested
by a child or pet, seek emergency assistance
immediately.
Coolant Level
The coolant bottle provides a quick visual method
for determining that the coolant level is adequate.
With the engine off and cold, the level of the engine
WARNING!
Do not open a hot engine cooling system.
Never add engine coolant (antifreeze) when
the engine is overheated. Do not loosen or
remove the cap to cool an overheated engine.
Heat causes pressure to build up in the
cooling system. To prevent scalding or injury,
do not remove the pressure cap while the
system is hot or under pressure.
Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or
engine damage may result.

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350SERVICING AND MAINTENANCE
(Continued)
Make sure that the coolant expansion bottle
overflow hoses are not kinked or obstructed.
Keep the front of the radiator clean. If your
vehicle is equipped with air conditioning, keep
the front of the condenser clean.
Do not change the thermostat for Summer or
Winter operation. If replacement is ever neces-
sary, install ONLY the correct type thermostat.
Other designs may result in unsatisfactory
engine cooling performance, poor gas mileage,
and increased emissions.
BRAKE SYSTEM
In order to ensure brake system performance, all
brake system components should be inspected
periodically. For the proper maintenance intervals
Ú page 331.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be
checked whenever the vehicle is serviced, or
immediately if the Brake System Warning Light is
on. If necessary, add fluid to bring level within the
designated marks on the side of the reservoir of
the brake master cylinder. Be sure to clean the top
of the master cylinder area before removing cap.
With disc brakes, fluid level can be expected to fall
as the brake pads wear. Brake fluid level should be
checked when pads are replaced. If the brake fluid
is abnormally low, check the system for leaks.
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in
abnormally high brake temperatures, excessive
lining wear, and possible brake damage. You
would not have your full braking capacity in an
emergency.
WARNING!
Use only manufacturer's recommended brake
fluid Ú page 402. Using the wrong type of
brake fluid can severely damage your brake
system and/or impair its performance. The
proper type of brake fluid for your vehicle is
also identified on the original factory installed
hydraulic master cylinder reservoir.
To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that
has been in a tightly closed container. Keep
the master cylinder reservoir cap secured at
all times. Brake fluid in an open container
absorbs moisture from the air resulting in a
lower boiling point. This may cause it to boil
unexpectedly during hard or prolonged
braking, resulting in sudden brake failure. This
could result in a collision.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine parts,
causing the brake fluid to catch fire. Brake
fluid can also damage painted and vinyl
surfaces, care should be taken to avoid its
contact with these surfaces.
Do not allow petroleum-based fluid to contam -
inate the brake fluid. Brake seal components
could be damaged, causing partial or
complete brake failure. This could result in a
collision.
WARNING!

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