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
page 311 for diesel engines.
Selection Of Coolant
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!
8
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.
B
RAKE
S
YSTEM
In order to ensure brake system performance, all brake
system components should be inspected periodically. For
the proper maintenance intervals
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 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.
8
332
SERVICING AND MAINTENANCE
F
RONT
/R
EAR
A
XLE
F
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
T
RANSFER
C
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
Selection Of Lubricant
Use only the manufacturer recommended fluid
M
ANUAL
T
RANSMISSION
— I
F
E
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
Selection Of Lubricant
Use only the manufacturer recommended manual
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)
A
UTOMATIC
T
RANSMISSION
—
I
F
E
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.
F
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
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.
8
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
8
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
8
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
8
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
8
342
SERVICING AND MAINTENANCE
B
ULB
R
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.
8
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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