light JEEP WRANGLER 2008 JK / 3.G Owners Manual

▫Center High-Mounted Stop Light (CHMSL) . . . 423
 Fluid Capacities ........................424
 Fluids, Lubricants And Genuine Parts ........424▫
Engine .............................424
▫ Chassis ............................425
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ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light.” It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.CAUTION!
•Prolonged driving with the “Malfunction Indica-
tor Light” on could cause further damage to the
emission control system. It could also affect fuel
economy and drivability. The vehicle must be
serviced before any emissions tests can be per-
formed.
•If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
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Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is possibly loose, improp-
erly installed, or damaged. A “gASCAP” message will be
displayed in the odometer. Tighten the gas cap until a
clickingsound is heard. This is an indication that the
gas cap is properly tightened. Press the odometer reset
button to turn the message off. If the problem persists,
the message will appear the next time the vehicle is
started. This might indicate a damaged cap. If the prob-
lem is detected twice in a row, the system will turn on the
“Malfunction Indicator Light.” Resolving the problem
will turn the “Malfunction Indicator Light.” off.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an Inspection and Mainte-
nance (I/M), this check verifies the Malfunction
Indicator Light (MIL) is functioning and is not on
when the engine is running, and that the OBD II system
is ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may notbe ready if your vehicle was recently
serviced, recently had a dead battery, or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
380 MAINTAINING YOUR VEHICLE

CAUTION!
Be aware that if the fluid temperature is below 50° F
(10° C), it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough to
produce an accurate reading.
7. Check for leaks. Release the parking brake.
NOTE: To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
certain that the dipstick cap is properly reseated. It is
normal for the dipstick cap to spring back slightly from
its fully seated positions, as long as its seal remains
engaged in the dipstick tube.
Special Additives
Automatic Transmission Fluid (ATF) is an engineered
product and its performance may be impaired by supple-
mental additives. Therefore, do not add any fluid addi-
tives to the transmission. The only exception to this
policy is the use of special dyes to aid in detecting fluid
leaks. In addition, avoid using transmission sealers as
they may adversely affect seals.
Hydraulic Clutch Fluid — Manual Transmission
The clutch hydraulic system is a sealed maintenance free
system. In the event of leakage or other malfunction, the
system must be replaced.
Manual Transmission
Selection of Lubricant
Use only manufacturer’s recommended manual trans-
mission fluid. Refer to Fluids, Lubricants, and Genuine
Parts in this section for the correct fluid type.
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RINSING —Be sure to remove all trace of cleaner by
rinsing the top thoroughly with clean water. Remember
to allow the top to dry before lowering it.
Care Of Fabric Top Windows
CAUTION!
Your vehicle’s fabric top has pliable plastic windows
which can be scratched unless special care is taken by
following these directions:
1. Never use a dry cloth to remove dust. Instead, use a
microfiber towel or soft cotton cloth moistened with
cold or warm, clean water, and wipe across the window,
not up and down. MOPARJeep Soft Glass Window
Cleaner will safely clean all plastic windows without
scratching. Removes fine scratches to improve visibility
and provide UV protection to help prevent yellowing. 2. When washing,
never use hot water or anything
stronger than a mild soap. Never use solvents such as
alcohol or harsh cleaning agents.
3. Always rinse thoroughly with cold water, then wipe
with a soft and slightly moist, clean cloth.
4. When removing frost, snow or ice, never use a scraper
or de-icing chemicals. Use warm water only if you must
clean the window quickly.
5. Debris (sand, mud/dirt, dust, or salt) from off-road
driving will have a major impact on zipper operation.
Even normal on-road driving and vehicle washing will
eventually impact window zipper operation. To maintain
ease of use of the window zippers, each window zipper
should be cleaned and lubricated regularly. Use MO-
PA R Soft Top Zipper Cleaner and Lubricant to ease
zipper operation. Before applying, make sure the zipper
teeth are clear of sand, mud, and other materials. Clean
both sides of the zipper, not just one side. Rinse both
412 MAINTAINING YOUR VEHICLE

Cavity CartridgeFuseMini
Fuse Description
J21 20 Amp Yellow Front/Rear Washer
J22 — Spare
M1 15 Amp
Blue Center High-Mounted
Stop Light (CHMSL)/
Switch Stop Lamp Feed
M2 20 Amp
Yellow Relay Trailer Lighting
(Stop)
M3 20 Amp
Yellow Frt/Rear Axle Locker
Relay
M4 — —
M5 — —
M6 20 Amp
Yellow Power Outlet #1/Rain
Sensor
M7 20 Amp
Yellow Power Outlet #2
(BATT/ACC SELECT)Cavity Cartridge
FuseMini
Fuse Description
M8 20 Amp
Yellow Front Heated Seat
M9 20 Amp
Yellow Rear Heated Seat (If
Equipped)
M10 20 Amp
Yellow Ignition Off Draw —
Vehicle Entertainment
System (IOD-VES), Sat-
ellite Digital Audio Re-
ceiver (SDARS), DVD,
Hands-Free Module
(HFM), RADIO, An-
tenna (ANT), Universal
Garage Door Opener
(UGDO), Vanity Lamp
(VANITY LP)
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Cavity CartridgeFuseMini
Fuse Description
M16 10 Amp
Red Occupant Restraint
Controller (ORC)
M17 15 Amp
Blue Left Tail/License/Park
Lamp (LT-TAIL/LIC/
PRK LMP)
M18 15 Amp
Blue Right Tail/Park/Run
Lamp (RT-TAIL/PRK/
RUN LMP)
M19 25 Amp
Natural Auto Shut Down (ASD
#1 and #2)
M20 15 Amp
Blue Cabin Compartment
Node Interior Light
(CCN INT LIGHT),
Switch Bank (SW
BANK)
M21 20 Amp
Yellow Auto Shut Down (ASD
#3)Cavity Cartridge
FuseMini
Fuse Description
M22 10 Amp
Red Right Horn (RT HORN
(HI/LOW)
M23 10 Amp
Red Left Horn (LT HORN
(HI/LOW)
M24 25 Amp
Natural Rear Wiper (REAR
WIPER)
M25 20 Amp
Yellow Fuel Pump (FUEL
PUMP), Diesel Lift
Pump (DSL LIFT
PUMP) — Export Only
M26 — —
M27 10 Amp
Red Ignition Switch Feed,
Wireless Module
M28 10 Amp
Red PCM Feed/TCM
M29 — —
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REPLACEMENT BULBS — IF EQUIPPED
Interior LightsBulb Type
Auto. Trans. Indicator Light ................. 658
Courtesy Lights, Under Dash (1) .............. 906
Heater Control Lights (2) ................... 194
Rocker Switch Indicator Light (Rear Window
Defogger, and Rear Wash/Wipe) ............... **
Soundbar Dome Light ..................... 912
** Bulbs only available from authorized dealer.
Exterior Lights Bulb Type
Backup Lights (2) ........................ 3157
Center High-Mounted Stop Light (1) .........L.E.D.
Fog Lights ............................. 9145
Front Park/Turn Lights (2) .................3157
Front Side Marker Lights (2) ................. 168
Headlights (2) .......................... H13
Stop/Tail/Turn Lights (2) ..................3157
Underhood Light ......................... 561
License Light ........................... 194 NOTE:
Numbers refer to commercial bulb types that
can be purchased from your local authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
BULB REPLACEMENT
NOTE: Lens fogging can occur under certain atmo-
spheric conditions. 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.
Head Light
1. Open hood and support using prop rod.
2. Remove the front grille. Turn the retainers along the
top 1/4 turn counterclockwise and remove.
3. Pull the bottom of the grille away starting at one side
and working toward the other.
420 MAINTAINING YOUR VEHICLE

3. Turn the socket assembly 1/4 turn counterclockwise
and remove from housing. Pull the bulb straight from the
socket to replace.
Front Side Marker
1. Reach under the front fender flare and locate the front
side marker socket.
2. Turn the socket assembly counterclockwise 1/3 turn
and remove it from the housing. Pull the bulb straight
from the socket to replace.
Front Fog Light
1. Locate the front fog lamp in the front fascia, and
disconnect the electrical connector from underneath.
2. Turn the bulb 1/4 turn counterclockwise.
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.
Rear Tail, Stop, Turn Signal, and Backup Lights
1. Remove the two inboard screws attaching the tail light
housing to the body.DO NOT REMOVE THE OUTER
SCREWS AT ANY TIME.
422 MAINTAINING YOUR VEHICLE

2. Separate the housing from the body by pushing the
lamp inboard while pulling the lamp away from the
body.
3. Rotate the appropriate socket 1/4 turn counterclock-
wise, then remove it from the housing.4. Pull the bulb straight from the socket to replace.
Center High-Mounted Stop Light (CHMSL)
The stop lamp is mounted on a bracket that extends
upward from the tailgate behind the spare tire. If service
is needed, obtain the LED/Cover Assembly from your
local authorized dealer.
1. Remove the spare tire.
2. Remove the four screws holding the lens/cover in
place on the spare tire carrier.
3. Disconnect the wire harness from the back of the LED
cover.
MAINTAINING YOUR VEHICLE 423
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