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Jeep Wrangler (2023 year). Manual in english - page 21

SERVICING AND MAINTENANCE

329

Coolant Checks

Check the engine, battery (if equipped), intercooler (if

equipped), and Motor Generator Unit (MGU) (if equipped)

coolant (antifreeze) protection every 12 months (before

the onset of freezing weather, where applicable). If the

engine, battery (if equipped), intercooler (if equipped), and

MGU (if equipped) coolant is dirty or rusty in appearance,

the system should be drained, flushed and refilled with

fresh OAT coolant (conforming to MS.90032) by an

authorized dealer. Check the front of the A/C condenser (if

equipped) or radiator for any accumulation of bugs,

leaves, etc. If dirty, clean by gently spraying water from a

garden hose vertically down the face of the A/C condenser

(if equipped) or the back of the radiator core.
Check the engine, battery (if equipped), intercooler (if

equipped), and MGU (if equipped) 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

NOTE:

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

OAT coolant (conforming to MS.90032).
For the proper maintenance intervals, see

page 307 for

gasoline engines or

page 311 for diesel engines.

Selection Of Coolant

For further information

page 374.

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 (antifreeze) 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 radiator.



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 has been built with an improved engine coolant

(OAT coolant conforming to MS.90032) that allows

extended maintenance intervals. This engine coolant

(antifreeze) can be used up to 10 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 Organic

Additive Technology (OAT) engine coolant that meets the

requirements of the manufacturer Material Standard

MS.90032. When adding engine coolant (antifreeze):



We recommend using Mopar® Antifreeze/Coolant

10 Year/150,000 Mile (240,000 km) Formula OAT

(Organic Additive Technology) that meets the require

ments 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.



When working near the radiator cooling fan, discon

nect the fan motor lead or turn the ignition to the OFF

mode. The fan is temperature controlled and can

start at any time the ignition is in the ON mode.

WARNING!

330

SERVICING 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, 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.



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.



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 so 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) OAT or

HOAT, 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 bottle need only 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.

Engine Coolant Level — 2.0L

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.

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.

SERVICING AND MAINTENANCE

331

(Continued)

With the engine OFF and cold, the level of the engine

coolant should be within the OK range between the ADD

and FULL range on the dipstick.
1. Remove the cap with level dipstick from the engine

coolant bottle.

2. Clean off the coolant from the dipstick.
3. Rest the cap on the opening of the coolant bottle

without tightening the cap.

4. Remove the cap with dipstick and check the coolant

level on the dipstick.

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 bottle need only 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.



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.

RAKE

YSTEM

In order to ensure brake system performance, all brake

system components should be inspected periodically. For

the proper maintenance intervals

page 307.

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

page 376.

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 the manufacturer recommended brake fluid

page 376. 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.

332

SERVICING AND MAINTENANCE

RONT

EAR

XLE

LUID

For normal service, periodic fluid level checks are not

required. When the vehicle is serviced for other reasons

the exterior surfaces of the axle assembly should be

inspected. If gear oil leakage is suspected inspect the fluid

level.

Fluid Level Check

Lubricant should be approximately 1/8 inch (3 mm) below

the bottom edge of the oil fill hole.

NOTE:

Make sure that the vehicle is level and supported by the

axles.

Adding Fluid

Add lubricant only at the fill hole and only to the level

specified above.

Selection Of Lubricant

Use only manufacturer recommended fluid

page 376.

RANSFER

ASE

Fluid Level Check

The fluid level should be to the bottom edge of the fill hole

when the vehicle is in a level position.

Transfer Case

Drain And Refill

For the proper maintenance intervals

page 307.

Selection Of Lubricant

Use only the manufacturer recommended fluid

page 376.

ANUAL

RANSMISSION

— I

QUIPPED

Fluid Level Check

Check the fluid level by removing the fill plug. The fluid

level should be between the bottom of the fill hole and a

point not more than 3/16 of an inch (4.76 mm) below the

bottom of the hole.
Add fluid, if necessary, to maintain the proper level.

Frequency Of Fluid Change

Under normal operating conditions, the fluid installed at

the factory will give satisfactory lubrication for the life of

the vehicle. If the fluid becomes contaminated with water,

it should be changed immediately. Otherwise, change the

fluid as recommended in the Maintenance Plan. Refer to

the Maintenance Plan for the proper maintenance

intervals

page 307.

Selection Of Lubricant

Use only the manufacturer recommended manual

transmission fluid

page 376.



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 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 contaminate

the brake fluid. Brake seal components could be

damaged, causing partial or complete brake failure.

This could result in a collision.

WARNING!

1 — Fill hole
2 — Drain hole

SERVICING AND MAINTENANCE

333

(Continued)

UTOMATIC

RANSMISSION

—

QUIPPED

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.

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 specified transmission fluid

page 376. 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.

USES

General Information

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.

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

recommended fluid may cause deterioration in

transmission shift quality and/or torque converter

shudder

page 376.

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. 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.

334

SERVICING AND MAINTENANCE

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 using power outlets for

extended periods of time with the engine off may result in

vehicle battery discharge.

Blade Fuses

Power Distribution Center (PDC)

The Power Distribution Center is located in the engine

compartment near the battery. This center contains

cartridge fuses, mini fuses, and relays. The PDC top cover

is labeled with each serviceable fuse/relay location,

function, and size.



If a general protection fuse for safety systems (air

bag system, braking system), power unit systems

(engine system, gearbox system) or steering system

blows, contact an authorized dealer.

WARNING!

1 — Fuse Element
2 — Blade Fuse with a good/functional fuse element
3 — Blade fuse with a bad/not functional fuse element

(blown fuse)

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.

SERVICING AND MAINTENANCE

335

Power Distribution Center Location – Gasoline Engine

336

SERVICING AND MAINTENANCE

Power Distribution Center Location – Diesel Engine

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

F01

–

Spare *

F02

40 Amp Green

–

Starter

SERVICING AND MAINTENANCE

337

F03

–

5 Amp Tan

Intelligent Battery Sensor (IBS)

F04

–

20 Amp Yellow

Fuel Pump MTR/FPCM

25 Amp Clear

Fuel Pmp (6.4) *

F05

–

5 Amp Tan

Security Gateway

F06

–

Spare *

F07

–

15 Amp Blue

LTR Coolant Pump *

F08

–

15 Amp Blue

TCM-8HP CYGNUS

F09

–

Spare *

F10

–

15 Amp Blue

KIN / RF HUB / ESCL

F11

–

10 Amp Red

UCI Port (USB & AUX)

F12

–

25 Amp Clear

HIFI Amplifier

F13

–

Spare *

F14

–

Spare *

F15

–

15 Amp Blue

IPC / Switch Bank-HD Elec

F16

–

Spare *

F17

–

Spare *

F18

–

10 Amp Red

Air Conditioning Clutch (AC CLUTCH)

F19

–

Spare *

F20

30 Amp Pink

–

Central Body Controller (CBC) 1-INTERIOR LIGHTS

F21

–

20 Amp Yellow

REAR WIPER

F22

–

10 Amp Red

Engine Control Module (ECM)/Powertrain Control Module (PCM)/Motor

Generator Unit (MGU) WAKE UP/Power Pack Unit (PPU) WAKE UP

F23

–

10 Amp Red

ECM / PCM

F24

–

Spare *

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

338

SERVICING AND MAINTENANCE

F25

–

10 Amp Red

Module Shift By Wire (MOD_SBW)

F26

40 Amp Green

–

Central Body Controller (CBC) 2-EXTERIOR LIGHTS #1

F27

30 Amp Pink

–

Front Wipers

F28

40 Amp Green

–

Central Body Controller (CBC) 3-POWER LOCKS

F29

40 Amp Green

–

Central Body Controller (CBC) 4-EXTERIOR LIGHTS #2

F30

–

Spare *

F31

–

10 Amp Red

DIAGNOSTIC PORT

F32

–

10 Amp Red

Heating Ventilation Air Conditioning Mod (HVAC CTRL MOD)/Steering

Column Lock (SCL)/Occupant Classification Module (OCM)/Driver

Presence Detection Module (DPDM)

F33

–

10 Amp Red

ParkTronics System (PTS)/Infrared Camera Module (IRCM)/Airbag

Disable Lamps (AIRBAG DISABLE LMPS)

F34

–

10 Amp Red

Electronic Stability Control (ESC)/Electric Hydraulic Power Steering

(EHPS)/Smart Bar Control Module (SBCM) WAKE UP

F35

30 Amp Pink

–

BRAKE VAC PMP*

F36

30 Amp Pink

–

TRAILER TOW ELEC BRK MOD*

F37

30 Amp Pink

–

TRAILER TOW CONN 7W*

F38

20 Amp Blue

–

Engine Control Module (ECM)

F39

–

15 Amp Blue

MGU Coolant Pump (3.6)*

F40

–

15 Amp Blue

DriveTrain Control Module (DTCM)/Axle Lock (AXLE LOC) FT_RR

F41

–

15 Amp Blue

Instrument Cluster (IC)/Security GateWay (SGW) WAKE UP

F42

–

10 Amp Red

PCR Ctrl Feed (ESS) *

F43

–

20 Amp Yellow

PWR OUTLET (CARGO) BATT

F44

–

10 Amp Red

InfraRed Camera (IRCAM) HEATERS

F45

–

20 Amp Yellow

PWR OUTLET (CARGO) IGN

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

SERVICING AND MAINTENANCE

339

F46

–

10 Amp Red

AUTO HDLP LVL MOD/LVL MTR/HDLP SW

F47

–

Spare *

F48

–

Spare *

F49

–

10 Amp Red

Occupant Restraint Controller (ORC)

F50

–

10 Amp Red

HD ACC*

F51

–

10 Amp Red

Digital TV Inline / USB / ISRVM / Compass Mod

F52

–

20 Amp Yellow

CIGAR LTR

F53

–

Spare *

F54

–

Spare *

F55

–

10 Amp Red

Central Vision Processing Module (CVPM)

F56

–

10 Amp Red

IN-CAR TEMP SENSOR/PTC HTR COIL FEED

F57

–

20 Amp Yellow

Driver Heated Seat

F58

–

20 Amp Yellow

Pass Heated Seat

F59

–

Spare *

F60

–

15 Amp Blue

Comfort Steering Wheel Module (CSWM) (HTD STR WHEEL)

F61

–

10 Amp Red

Left Blind Spot Sensor (LBSS)/Right Blind Spot Sensor (RBSS)

F62

–

Spare *

10 Amp Red

Exhaust Sol *

F63

–

10 Amp Red

Occupant Restraint Controller (ORC)

F64

–

Spare *

F65

–

Spare *

F66

40 Amp Green

–

HVAC BLOWER MTR Front

F67

–

Spare *

F68

–

Spare *

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

340

SERVICING AND MAINTENANCE

F69

–

5 Amp Tan

Motor Generator Unit MGU Belt Starter Generator (BSG)*

F70

–

25 Amp Clear

INJ/IGN COIL (GAS)/GLO PLUG MOD (DSL)

F71

–

Spare *

F72

–

10 Amp Red

HD ELEC ACC PKG*

F73

20 Amp Blue

–

PWR TOP LT

F74

20 Amp Blue

–

PWR TOP RT

F75

–

10 Amp Red

Power Pack Unit - Battery Pack Control Module & Auxiliary Power

Module (PPU-BPCM & APM) Belt Starter Generator (BSG)*

F76

–

20 Amp Yellow

ECM (GAS)/PCM (DSL)

F77

–

10 Amp Red

HEATED MIRRORS

F78

–

10 Amp Red

INTRUSION MOD/SIREN/INTRUSION SENSORS

F79

–

20 Amp Yellow

SMART BAR CTRL MOD

F80

–

15 Amp Blue

Powertrain Control Module (PCM) / SOL 1,2 BLOCK SHIFT *

10 Amp Red

Vapor Blocking Valve (BSG) *

F81

30 Amp Pink

–

Rear Defrost (EBL)

F82

30 Amp Pink

–

FUEL HTR*

F83

60 Amp Yellow

–

GLOW PLUG*

F84

30 Amp Pink

–

UREA HTR CTRL UNIT*

F85

–

10 Amp Red

PM SENSOR*

F86

30 Amp Pink

–

BRAKE VAC PMP 2*

F87

–

10 Amp Red

SUPPLY/PURGING PMP*

F88

20 Amp Blue

–

NOx SENSOR #1/ #2*

F89

–

10 Amp Red

Steering Column Control Module (SCCM)/ Cruise Control (CRUISE

CTL)/Digital TV (DTV) / EVIC / Airbag Disable Lamp

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

SERVICING AND MAINTENANCE

341

Customer can select to switch the Cargo Power Outlet from F43 battery fed power to this position F45 which is fed when the ignition in ON.

F90

20 Amp Blue

–

TRAILER TOW PARK LMP*

F91

–

20 Amp Yellow

HORN

F92

40 Amp Green

–

HD ACCY #2*

F93

40 Amp Green

–

HD ACCY #1*

F94

–

Spare *

F95

–

Spare *

F96

–

10 Amp Red

PWR MIRROR SW

F97

–

20 Amp Yellow

RADIO/TBM

F98

–

10 Amp Red

SW BANK-HD ELEC/OFF ROAD

F99

–

Spare *

F100

30 Amp Pink

–

ESC-ECU & VALVES

F101

30 Amp Pink

–

DriveTrain Control Module (DTCM)

F102

–

15 Amp Blue

DUAL USB PORT

F103

–

15 Amp Blue

HD ACCY #3*

F104

–

15 Amp Blue

PPU COOL PUMP*

F105

–

10 Amp Red

Integrated Center Stack (ICS)/Heat Ventilation Air Conditioning (HVAC)

F106

50 Amp Red

–

ESC -PUMP MTR

F107

–

20 Amp Yellow

TRAILER TOW STOP/TURN LT*

F108

–

15 Amp Blue

HD ACCY #4*

F109

–

20 Amp Yellow

TRAILER TOW STOP/TURN RT*

F110

30 Amp Pink

–

POWER INVERTER

F111

20 Amp Blue

–

TRAILER TOW BACKUP*

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

342

SERVICING AND MAINTENANCE

ULB

EPLACEMENT

Replacement Bulbs, Names, And Part Numbers

In the instance a bulb needs to be replaced, this section includes bulb description and replacement part numbers.

NOTE:

See an authorized dealer for LED bulb replacement.

Interior Bulbs

Bulb Name

Bulb Number

Automatic Transmission Indicator Lamp

658

Heater Control Lamps (2)

194

Rocker Switch Indicator Lamp (Rear Window Defogger, and Rear Wash/Wipe)

Soundbar Dome Lamp

912

** Bulbs only available from an authorized dealer.

Exterior Bulbs

Bulb Name

Bulb Number

Headlamps (2)

H13

Premium Head Lamps

LED

Sport Front Park/Turn Signal Lamps (2)

7444NALL

Premium Front Park/Turn Signal Lamps (2)

LED

Base (Sahara/Rubicon) Turn Lamp

7440NALL/WY21WLL

Base (Sahara/Rubicon) Park DRL Lamp

7443LL

Front Side Marker Lamps (2)

LED

Base Fog Lamps

PSX24W

SERVICING AND MAINTENANCE

343

Bulb Replacement

NOTE:

Lens fogging can occur under certain atmospheric condi

tions. This will usually clear as atmospheric conditions

change to allow the condensation to change back into a

vapor. Turning the lamps on will usually accelerate the

clearing process.

HALOGEN HEADLAMPS

See the following steps to replace:
1. Open hood and support using prop rod.
2. Remove the front grille. Turn the retainers along the

top a quarter turn counterclockwise and remove.

3. Pull the bottom of the grille away starting at one side

and working toward the other.

4. Remove the three screws holding the headlamp to

the vehicle.

5. Remove lamp from the vehicle.
6. Remove the lamp from the collar.
7. Grab the bulb and rotate a quarter turn counter

clockwise.

8. Pull the bulb from the housing.
9. Push connector locking tab to the unlock position.
10. Remove connector from bulb.
11. Push connector onto new bulb base, and push the

connector locking tab to the lock position.

12. Reinstall bulb housing. Rotate the bulb a quarter turn

clockwise.

Premium Fog Lamps

LED

Rear Premium LED Tail Lamps

LED

Rear Base Tail Lamp Stop/Tail/Turn Bulb

3157

Rear Base Tail Lamp Backup Bulb

7440

Rear Base Tail Lamp Side Marker

LED

Center High Mounted Stop Lamp (CHMSL)

LED

License Lamp

LED

NOTE:

Numbers refer to commercial bulb types that can be purchased from an authorized dealer. If a bulb needs to be replaced, visit an authorized dealer or refer to the applicable Service

Manual.

Exterior Bulbs

Bulb Name

Bulb Number

CAUTION!

Do not touch the new bulb with your fingers. Oil

contamination will severely shorten bulb life. If the bulb

comes in contact with any oily surface, clean the bulb

with rubbing alcohol.

344

SERVICING AND MAINTENANCE

FRONT PARK/TURN SIGNAL

See the following steps to replace:
1. Remove the front wheel liner fasteners to access

bulb sockets.

Wheel Liner

2. Turn the socket assembly a quarter turn counter

clockwise and remove from housing. Pull the bulb

straight from the socket to replace.

LED FRONT SIDE MARKER

See the following steps to replace:
1. Remove the front wheel liner fasteners to access

side maker screw and electrical connector.

2. Remove fastening screw in the back of the front side

maker assembly and disconnect electrical connector.

3. Remove and replace LED front side marker light

assembly.

HALOGEN FRONT FOG LAMP

See the following steps to replace:
1. Reach under the vehicle to access the back of the

front fog lamp.

2. Disconnect the wire harness connector from the front

fog lamp connector receptacle.

3. Firmly grab the bulb by the two latch features and

squeeze them together to unlock the bulb from the

back of the front fog lamp housing.

4. Pull the bulb straight out from the keyed opening in

the housing and then connect the replacement bulb.

LED Front Fog Lamp
If your vehicle is equipped with LED fog lamps they are

replaced as an assembly.

REAR TAIL, STOP, TURN SIGNAL, AND BACKUP

LAMP

See the following steps to replace:
1. Remove interior trim panel cap to access single

retaining screw for tail lamp assembly.

Trim Cap

2. Remove retaining screw and disconnect electrical

connector, then remove tail lamp assembly from the

vehicle.

NOTE:

If necessary, push in on the assembly tab located inboard

behind the lamp housing.
3. Remove the three screws from assembly bracket to

access bulb sockets.

CAUTION!

Do not touch the new bulb with your fingers. Oil

contamination will severely shorten bulb life. If the bulb

comes in contact with any oily surface, clean the bulb

with rubbing alcohol.

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