light JEEP GRAND CHEROKEE 2023 Owners Manual

IN CASE OF EMERGENCY317
4. For a rear tire, place the jack in the slot on the rear tie-down bracket, just forward of the rear
tire (as indicated by the triangular lift point
symbol on the sill molding). Do not raise the
vehicle until you are sure the jack is fully
engaged.

Rear Lifting Point Rear Jacking Location

5. Raise the vehicle by turning the jack screw clockwise. Raise the vehicle only until the tire
just clears the surface and enough clearance
is obtained to install the spare tire. Minimum
tire lift provides maximum stability.
6. Remove the lug nuts and wheel.
7. Position the spare wheel/tire on the vehicle and install the lug nuts with the cone-shaped
end toward the wheel. Lightly tighten the nuts.
Mounting Spare Tire

8. Lower the vehicle by turning the jack screw counterclockwise, and remove the jack and
wheel blocks.
CAUTION!
Do NOT raise the vehicle by the body side sill
molding. Be sure the jack is placed in the proper
engagement location on the inside of the panel.
Damage of the vehicle may occur if the
procedure is not properly followed.
WARNING!
Raising the vehicle higher than necessary can
make the vehicle less stable. It could slip off the
jack and hurt someone near it. Raise the vehicle
only enough to remove the tire.
CAUTION!
Be sure to mount the spare tire with the valve
stem facing outward. The vehicle could be
damaged if the inflatable spare tire is mounted
incorrectly.
WARNING!
To avoid the risk of forcing the vehicle off the
jack, do not tighten the wheel nuts fully until the
vehicle has been lowered. Failure to follow this
warning may result in serious injury.
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322IN CASE OF EMERGENCY
NOTE:In certain cold conditions, ice may prevent the fuel
door from opening. If this occurs, lightly push
around the perimeter of the fuel door to break the
ice build up. Re-release the fuel door by pushing on
the rear outer edge near the center to unlatch. Do
not pry on the door.
Emergency Gas Can Refueling
Most gas cans will not open the flapper doors. A
funnel is provided to allow emergency refueling
with a gas can.
See the following steps for refueling:

1. Retrieve funnel from under the rear cargo
load floor.

2. Insert funnel into same filler pipe opening as the fuel nozzle.

Inserting Funnel
3. Ensure funnel is inserted fully to hold flapper
doors open.
4. Pour fuel into funnel opening.
5. Remove funnel from filler pipe, clean off prior to putting back in the spare tire storage area.
6. Close the fuel door making sure the latch is engaged by pushing on the rear outer edge
near the center.IF YOUR ENGINE OVERHEATS
If the vehicle is overheating, it will need to be
serviced by an authorized dealer.
Potential signs of vehicle overheating:
Temperature gauge is at HOT (H)
Strong smell of coolant
White smoke coming from engine or exhaust
Coolant bottle coolant has bubbles present
CAUTION!
To avoid fuel spillage and overfilling, do not “top
off” the fuel tank after filling.
WARNING!
Never have any smoking materials lit in or
near the vehicle when the fuel door is open or
the tank is being filled.
Never add fuel when the engine is running.
This is in violation of most state and federal
fire regulations and may cause the Malfunc -
tion Indicator Light to turn on.
A fire may result if fuel is pumped into a
portable container that is inside of a vehicle.
You could be burned. Always place fuel
containers on the ground while filling.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator.
If you see or hear steam coming from under the
hood, do not open the hood until the radiator
has had time to cool. Never try to open a cooling
system pressure cap when the radiator or
coolant bottle is hot.

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330
SERVICING AND MAINTENANCE
SCHEDULED SERVICING
Your vehicle is equipped with an automatic oil
change indicator system. The oil change indicator
system will remind you that it is time to take your
vehicle in for scheduled maintenance.
Based on engine operation conditions, the oil
change indicator message will illuminate. This
means that service is required for your vehicle.
Operating conditions such as frequent short-trips,
trailer tow, extremely hot or cold ambient
temperatures, and E85 fuel usage will influence
when the “Oil Change Required” message is
displayed. Have your vehicle serviced as soon as
possible, within the next 500 miles (805 km).An authorized dealer will reset the oil change
indicator message after completing the scheduled
oil change.
NOTE:Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km),
12 months or 350 hours of engine run time,
whichever comes first. The 350 hours of engine
run or idle time is generally only a concern for fleet
customers.
Once A Month Or Before A Long Trip:
Check engine oil level.
Check windshield washer fluid level.
Check the tire inflation pressures and look for
unusual wear or damage.
Check the fluid levels of the coolant reservoir,
brake master cylinder and fill as needed.
Check function of all interior and exterior lights.

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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.
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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.
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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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362SERVICING AND MAINTENANCE
F10 40 Amp Green –HVAC Blower Motor
F11 ––Spare
F12 –20 Amp YellowAssy Cigar Lighter
F13 –10 Amp RedAssy Mirror Inside Rearview / Digital
TV (DTV) */ Sunroof Single - Dual
Pane / Port UC1 Dual USB RR /
Interior Monitoring Camera
F14 ––Spare
F15A ––Spare
F15B ––Spare
F16 –10 Amp RedMOD ORC
F17 ––Spare
F18 ––Spare
F19 ––Spare
F20 –10 Amp RedOverhead Console Assy (OHC) W/
Sunshade / Intrusion Module /
Intrusion Sensor / Siren / Head Up
Display (HUD) / Digital TV (DTV) *
F21 30 Amp Pink –Trailer Tow Electric Brake -
Aftermarket
F22 ––Spare
F23 ––Spare
Cavity Cartridge Fuse Micro FuseDescription

* If Equipped

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SERVICING AND MAINTENANCE363
F24 ––Spare
F25 ––Spare
F26 ––Spare
F27 ––Spare
F28 ––Spare
F29 ––Spare
F30 ––Spare
F31 ––Spare
F32 –15 Amp BlueMOD ICS Switch Bank / SW Bank
Upper / SW EPB / Aux Switch Bank
Module (ASBM)
F33 –15 Amp BlueTransfer case SW / Humidity Rain
Light Sensor (HRLS) / Suspension
SW*
F34 ––Spare
F35 –10 Amp RedIRCAM Heater
F36 ––Spare
F37 ––Spare
F38 ––Spare
F39 ––Spare
F40 ––Spare
Cavity Cartridge Fuse Micro FuseDescription

* If Equipped
8

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368SERVICING AND MAINTENANCE
F15A –10 Amp RedSpare
F15B Hands-Free Liftgate / Rear Window
Switches / MOD HVAC Cntrl Frt
F16 ––Spare
F17 40 Amp Green –Mod BCM Feed #3
F18 30 Amp Pink –Power Liftgate Module
F19A –10 Amp RedL2+ Driver Alert Lighting Module
F19B ––Spare
F20A –15 Amp BlueCentral ADAS Decision Module
(CADM)
F20B Spare
F21A ––Spare
F21B
F22 ––Spare
F23 –10 Amp RedMedia Hub #2 (RR) / #3 (LR)
F24 ––Spare
F25 30 Amp Pink –Mod Door MUX Passenger
F26 20 Amp Blue –Headrest Dump 3rd Row (LT & RT)*
F27 ––Spare
F28 30 Amp Pink –MOD Memory / Power Seat
(Passenger Frt)
Cavity
Cartridge Fuse Micro FuseDescription
* If Equipped

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SERVICING AND MAINTENANCE369
F29A –10 Amp RedMOD ICS Switch Bank Rear (Frt
Console)
F29B Spare
F30 30 Amp Pink –MOD Memory / Power Seat (Driver
Frt)
F31 ––Spare
F32 ––Spare
F33 ––Spare
F34 30 Amp Pink –MOD Door MUX Driver
F35 25 Amp Clear –Trailer Tow Module #2
F36A –10 Amp RedIntelligent Event Base Lighting
Module
F36B Port Pwr USB Console (USB CH Only) /
Port UCI Dual USB Rear
F37 25 Amp Clear –Trailer Tow Module #1
F38 ––Spare
F39 ––Spare
F40 –30 Amp GreenMod Audio Amplifier #1A
F41 ––Spare
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped
8

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