2023 JEEP CHEROKEE Owners Manual

SERVICING AND MAINTENANCE223
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every
12 months (before the onset of freezing weather, where
applicable). If the engine coolant is dirty, the system
should be drained, flushed, and refilled with fresh Organic
Additive Technology (OAT) coolant (conforming to
MS.90032) by an authorized dealer. Check the front of the
A/C condenser for any accumulation of bugs, leaves, etc.
If dirty, clean by gently spraying water from a garden hose
vertically down the face of the condenser.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts, and tightness of the connection at
the coolant recovery bottle and radiator. Inspect the entire
system for leaks. DO NOT REMOVE THE COOLANT
PRESSURE CAP WHEN THE COOLING SYSTEM IS HOT.
Cooling System — Drain, Flush And Refill
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 an authorized
dealer. If the engine coolant (antifreeze) is dirty or contains visible
sediment, have an authorized dealer clean and flush with
Organic Additive Technology (OAT) coolant (conforming to
MS.90032).
Refer to the Maintenance Plan in this section for the
proper maintenance intervals
Úpage 209.
Selection Of Coolant
Refer to Engine Fluids And Lubricants for further
information Úpage 256.
NOTE:

Mixing of engine coolant (antifreeze) other than speci-
fied Organic Additive Technology (OAT) engine coolant,
may result in engine damage and may decrease corro -
sion protection. OAT engine coolant is different and
should not be mixed with Hybrid Organic Additive Tech -
nology (HOAT) engine coolant or any “globally compat -
ible” coolant. If a non-OAT engine coolant is introduced
into the cooling system in an emergency, the cooling
system will need to be drained, flushed, and refilled
with fresh OAT coolant (conforming to MS.90032), by
an authorized dealer as soon as possible.
 Do not use water alone or alcohol-based engine
coolant products. Do not use additional rust inhibitors
or anti-rust products, as they may not be compatible
with the radiator engine coolant and may plug the radi -
ator.
 This vehicle has not been designed for use with
propylene glycol-based engine coolant. Use of
propylene glycol-based engine coolant is not recom -
mended. 
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 an
authorized dealer.
Adding Coolant
Your vehicle is built with engine coolant (OAT coolant
conforming to MS.90032) that allows extended
maintenance intervals. This engine coolant (antifreeze)
can be used up to ten years or 150,000 miles
(240,000 km) before replacement. To prevent reducing
this extended maintenance period, it is important to use
the same engine coolant (OAT coolant conforming to
MS.90032) throughout the life of your vehicle.
Please review these recommendations for using 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 tempera -
tures 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.

Keep hands, tools, clothing, and jewelry away from
the radiator cooling fan when the hood is raised. The
fan starts automatically and may start at any time,
whether the engine is running or not.
 When working near the radiator cooling fan, discon -
nect the fan motor lead or turn the ignition to the OFF
position. The fan is temperature controlled and can
start at any time the ignition is in the ON position.
WARNING!
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224SERVICING AND MAINTENANCE
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, Windshield Washer Solvent, Antifreeze etc. to mini -
mize spillage onto top of engine. Any excess fluid that
is spilled onto the top of the engine should be removed
using compressed air or 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 recommended 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, 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 coolant
(antifreeze) in the bottle should be between the ranges
indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator/coolant pressure cap
unless checking for engine coolant freeze point or replacing coolant. Advise your service attendant of this. As
long as the engine operating temperature is satisfactory,
the coolant only needs to be checked once a month.
When additional engine coolant is needed to maintain the
proper level, only OAT coolant that meets the
requirements of the manufacturer Material Standard
MS.90032 should be added to the coolant bottle. Do not
overfill.
Cooling System Notes
NOTE:When the vehicle is stopped after a few miles/kilometers
of operation, you may observe vapor coming from the front
of the engine compartment. This is normally a result of
moisture from rain, snow, or high humidity accumulating
on the radiator and being vaporized when the thermostat
opens, allowing hot engine coolant (antifreeze) to enter
the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.

Do not overfill the coolant expansion bottle.
 Check the coolant freeze point in the radiator and in
the coolant expansion bottle. If engine coolant needs
to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
 If frequent engine coolant additions are required, the
cooling system should be pressure tested for leaks.
 Maintain engine coolant concentration at a minimum
of 50% OAT coolant (conforming to MS.90032) and
distilled water for proper corrosion protection of your
engine which contains aluminum components.
WARNING!
Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is over -
heated. 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 speci -
fied for your vehicle. Personal injury or engine
damage may result.

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SERVICING AND MAINTENANCE225
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 necessary, 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.
Refer to the Maintenance Plan for the proper
maintenance intervals
Úpage 209.
Fluid Level Check — Brake Master Cylinder
The fluid level of the brake 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. For further information
Úpage 256.
AUTOMATIC TRANSMISSION
Special Additives
It is strongly recommended against using any special
additives in the transmission. Automatic Transmission
Fluid (ATF) is an engineered product and its performance
may be impaired by supplemental additives. Therefore, do
not add any fluid additives to the transmission. Avoid
using transmission sealers as they may adversely affect
seals.
Fluid Level Check
The fluid level is preset at the factory and does not require
adjustment under normal operating conditions. Routine
fluid level checks are not required; therefore the
transmission has no dipstick. An authorized dealer can
check your transmission fluid level using special service
tools. If you notice fluid leakage or transmission
malfunction, visit an authorized dealer immediately to
have the transmission fluid level checked. Operating the
vehicle with an improper fluid level can cause severe
transmission damage.
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.
For further information Úpage 256. 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 mois -
ture, 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 a 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 contaminate
the brake fluid. Brake seal components could be
damaged, causing partial or complete brake failure.
This could result in a collision.
CAUTION!
Do not use chemical flushes in your transmission as the
chemicals can damage your transmission components.
Such damage is not covered by the New Vehicle Limited
Warranty.
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226SERVICING AND MAINTENANCE
Fluid And Filter Changes
Under normal operating conditions, the fluid installed at
the factory will provide satisfactory lubrication for the life
of the vehicle.
Routine fluid and filter changes are not required. However,
change the fluid and filter if the fluid becomes
contaminated (with water, etc.), or if the transmission is
disassembled for any reason.
Selection Of Lubricant
It is important to use the proper transmission fluid to
ensure optimum transmission performance and life. Use
only the manufacturer's specified transmission fluid
Úpage 256. It is important to maintain the transmission
fluid at the correct level using the recommended fluid.
NOTE:No chemical flushes should be used in any transmission;
only the approved lubricant should be used.
FUSES
General Information
The fuses protect electrical systems against excessive
current.
When a device does not work, you must check the fuse
element inside the blade fuse for a break/melt.
Also, please be aware that when using power outlets for
extended periods of time with the engine off may result in
vehicle battery discharge.

Blade Fuses

CAUTION!
If a transmission fluid leak occurs, visit an authorized
dealer immediately. Severe transmission damage may
occur. An authorized dealer has the proper tools to
adjust the fluid level accurately.
CAUTION!
Using a transmission fluid other than the
manufacturer’s recommended fluid may cause
deterioration in transmission shift quality and/or torque
converter shudder. For fluid specifications
Úpage 256.
WARNING!

When replacing a blown fuse, always use an appro -
priate replacement fuse with the same amp rating as
the original fuse. Never replace a fuse with another
fuse of higher amp rating. The use of a fuse with a
rating other than indicated may result in a dangerous
electrical system overload. If a properly rated fuse
continues to blow, it indicates a problem in the circuit
that must be corrected. Never replace a blown fuse
with metal wires or any other material. Do not place
a fuse inside a circuit breaker cavity or vice versa.
Failure to use proper fuses may result in serious
personal injury, fire and/or property damage.
 Before replacing a fuse, make sure that the ignition
is off and that all the other services are switched off
and/or disengaged.
 If the replaced fuse blows again, contact an autho -
rized dealer.
 If a general protection fuse for safety systems (air
bag system, braking system), power unit systems
(engine system, transmission system) or steering
system blows, contact an authorized dealer.
CAUTION!
If it is necessary to wash the engine compartment, take
care not to directly hit the fuse box, and the windshield
wiper motor with water.
1 — Fuse Element
2 — Blade Fuse With A Good/Functional Fuse Element
3 — Blade Fuse With A Bad / Not Functional Fuse
Element (Blown Fuse)

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SERVICING AND MAINTENANCE227
Underhood Fuses
The Power Distribution Center is located in the engine compartment near the battery. This center contains cartridge fuses, mini-fuses and relays. A label that identifies each component
is printed on the inside of the cover.
Power Distribution Location
CAUTION!
When installing the power distribution center cover, it is important to ensure the cover is properly positioned and fully latched. Failure to do so may allow water to get into the power
distribution center and possibly result in an electrical system failure.
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228SERVICING AND MAINTENANCE
CavityBlade Fuse Cartridge Fuse Description
* If Equipped
F01 –70 Amp Gray Electric Power Str
F02 –150 Amp Gray Aux PDC *
F03 –300 Amp Gray Alternator
F04 ––Battery
F05 –100 Amp Gray Rad Fan
F06 ––Not Used
F07 15 Amp Blue –Powertrain Control Mod (PCM) * / Surge Solenoid Purge Valve *
F08 25 Amp Clear –Fuel Injectors / ECM / PCM/
F09 10 Amp Red
–UREA Coolant Pump/PCM *
15 Amp Blue Coolant Pump *
F10 20 Amp Yellow –Power Transfer Unit (PTU) 4WD *
F11 ––Not Used
F12 10 Amp Red –Purging Pump *
F13 10 Amp Red –Voltage Stability Mod (VSM)/Powertrain Control Mod (PCM)/Engine Control Module (ECM)
F14 10 Amp Red –Drivetrain Control Module (DTCM)*/Power Take-Off Unit (PTU)*/Electric Park Brake (EPB) /
RDM*/ Brake System Module (BSM) / Brake Pedal Switch / Back Up Lamp Switch *
F15 ––Not Used
F16 20 Amp Yellow –Ign Coils / Additional Diesel Content
F17 30 Amp Pink –Brake Vacuum Pump *
F18 ––Not Used
F19 –40 Amp Green Starter
F20 10 Amp Red –A/C Clutch

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SERVICING AND MAINTENANCE229
F21––Not Used
F22 5 Amp Tan –Radiator Fan (PWM) Enable
F23 50 Amp Red –Voltage Stability Module (VSM) #2
F24 20 Amp Yellow –Rear Wiper
F25B 20 Amp Yellow –FT/RR Washer
F26 –30 Amp Pink Fuel Heater *
F27 ––Not Used
F28 15 Amp Blue –Transmission Control Module (TCM/Shifter)
F29 ––Not Used
F30 10 Amp Red –Engine Control Module (ECM) / EPS / PCM / Gas Particulate Filter (GPF)
F31 ––Not Used
F32 ––Not Used
F33 ––Not Used
F34 ––Not Used
F35 ––Not Used
F36 ––Not Used
F37 ––Not Used
F38 –60 Amp Yellow Glow Plug *
F39 –40 Amp Green HVAC Blower Motor
F40 –20 Amp Blue Trailer Tow Park Light *
F41 –50 Amp Red Voltage Stability Module (VSM) #1
F42 –30 Amp Pink Trailer Tow Module *
Cavity
Blade Fuse Cartridge Fuse Description
* If Equipped
8

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230SERVICING AND MAINTENANCE
F4320 Amp Yellow –Fuel Pump Motor
F44 –30 Amp Pink Trailer Tow Receptacle *
F45 –30 Amp Pink Passenger Door Module (PDM) *
F46 –25 Amp Clear Sunroof Control Module *
F47 ––Not Used
F48 –30 Amp Pink Driver Door Module *
F49 –30 Amp Pink Power Inverter (115 Volt/220 Volt A/C) *
F50 –30 Amp Pink Power Liftgate Module *
F51 ––Not Used
F52 –30 Amp Pink Front Wipers
F53 –30 Amp Pink Brake System Module (BSM) - ECU And Valves
F54 –30 Amp Pink Body Control Module (BCM) Feed 3
F55 10 Amp Red –Blind Spot Sensors*/Rearview Camera*/ Rear Heated Seat Switch *
F56 15 Amp Blue –Ignition Node Module (IGNM) / KIN / RF Hub / Electric Steering Column Lock (ESCL) /USB Port
F57 20 Amp Yellow –Trailer Tow Left Stop/Turn Lights *
F58 10 Amp Red –Occupant Classification Module/VSM/ESCL/TT Mod
F59 –30 Amp Pink Drivetrain Control Module (DTCM) *
F60 20 Amp Yellow –Power Outlet – Center Console
F61 20 Amp Yellow –Trailer Tow Right Stop/Turn Lights *
F62 20 Amp Yellow –Windshield De-Icer *
F63 20 Amp Yellow –Front Heated/Ventilated Seats *
F64 20 Amp Yellow –Rear Heated Seats *
Cavity
Blade Fuse Cartridge Fuse Description
* If Equipped

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