2008 JEEP LIBERTY light

Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap in loose, improperly installed, or damaged, a
ªgASCAPº message will display in the instrument clus-
ter. Tighten the gas cap until a ªclickingº sound is heard.
This is an indication that the gas cap is properly tight-
ened. Press the trip odometer reset button to turn off the
message. If the problem persists, the message will appear
the next time the vehicle is started. This might indicate a
damaged cap. If the problem is detected twice in a row,
the system will turn on the Malfunction Indicator Light
(MIL). Resolving the problem will turn the MIL 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, which have an I/M (Inspection and
Maintenance) requirement, this check verifies the
following: the MIL (Malfunction Indicator Light)
is functioning and is not on when the engine is running,
and that the OBD (On Board Diagnostic) system is ready
for testing.
Normally, the OBD system will be ready. The OBD
system maynotbe ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery
replacement. If the OBD system should be determined
not ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key actuated test,
which you can use prior to going to the test station. To
check if your vehicle's OBD system is ready, you must do
the following:
1. Insert your ignition key into the ignition switch.
400 MAINTAINING YOUR VEHICLE

²Inspect the brake hoses whenever the brake system is
serviced and at every engine oil change. Inspect hy-
draulic brake hoses for surface cracking, scuffing, or
worn spots. If there is any evidence of cracking,
scuffing, or worn spots, the hose should be replaced
immediately! Eventual deterioration of the hose can
take place resulting in a possibility of a burst failure.
WARNING!
Worn brake hoses can burst and cause brake failure.
You could have an accident. If you see any signs of
cracking, scuffing, or worn spots, have the brake
hoses replaced immediately.
Master Cylinder - Brake Fluid Level Check
Check the fluid level in the master cylinder immediately
if the brake system warning light indicates system fail-
ure.Check the fluid level in the master cylinder when per-
forming underhood services.
Clean the top of the master cylinder area before removing
the cap. If necessary, add fluid to bring the fluid level up
to the requirements described on the brake fluid reser-
voir.
Overfilling of fluid is not recommended because it may
cause leaking in the system.
Fluid level can be expected to fall as the brake pads wear.
Brake fluid level should be checked when pads are
replaced. However, low fluid level may be caused by a
leak and a checkup may be needed.
Use only manufacturer's recommended brake fluid. Re-
fer to ªFluids, Lubricants, and Genuine Partsº in this
section for the correct fluid type.
MAINTAINING YOUR VEHICLE 423
7

use polishes, oils, cleaning fluids, solvents, detergents, or
ammonia-based cleaners to clean leather upholstery. Ap-
plication of a leather conditioner is not required to
maintain the original condition.
WARNING!
Do not use volatile solvents for cleaning purposes.
Many are potentially flammable, and if used in
closed areas they may cause respiratory harm.
YES EssentialstFabric Cleaning Procedure ± If
Equipped
YES Essentialstseats may be cleaned in the following
manner:
²Remove as much of the stain as possible by blotting
with a clean, dry towel.
²Blot any remaining stain with a clean, damp towel.
²For tough stains, apply MopartTotal Clean or a mild
soap solution to a clean, damp cloth and remove the
stain. Use a fresh, damp towel to remove the soap
residue.
²For grease stains, apply MopartMulti-Purpose
Cleaner to a clean, damp cloth and remove the stain.
Use a fresh, damp towel to remove the soap residue.
²Do not use any solvents or protectants on Yes Essen-
tialstproducts.
Cleaning Headlights
Your vehicle has plastic headlights that are lighter and
less susceptible to stone breakage than glass headlights.
Plastic is not as scratch resistant as glass and therefore
different lens cleaning procedures must be followed.
432 MAINTAINING YOUR VEHICLE

To minimize the possibility of scratching the lenses and
reducing light output, avoid wiping with a dry cloth. To
remove road dirt, wash with a mild soap solution fol-
lowed by rinsing.
Do not use abrasive cleaning components, solvents, steel
wool or other aggressive material to clean the lenses.
Glass Surfaces
All glass surfaces should be cleaned on a regular basis
with MopartGlass Cleaner or any commercial
household-type glass cleaner. Never use an abrasive type
cleaner. Use caution when cleaning the inside rear win-
dow equipped with electric defrosters or the right rear
quarter window equipped with the radio antenna. Do
not use scrapers or other sharp instruments, which may
scratch the elements.
When cleaning the rear view mirror, spray cleaner on the
towel or rag that you are using. Do not spray cleaner
directly on the mirror.
Cleaning Plastic Instrument Cluster Lenses
The lenses in front of the instruments in this vehicle are
molded in clear plastic. When cleaning the lenses, care
must be taken to avoid scratching the plastic.
1. Clean with a wet soft rag. A mild soap solution may be
used, but do not use high alcohol content or abrasive
cleaners. If soap is used, wipe clean with a clean damp
rag.
2. Dry with a soft tissue.
Seat Belt Maintenance
Do not bleach, dye, or clean the belts with chemical
solvents or abrasive cleaners. This will weaken the fabric.
Sun damage can also weaken the fabric.
If the belts need cleaning, use a mild soap solution or
lukewarm water. Dry with a soft tissue. Do not remove
the belts from the car to wash them.
MAINTAINING YOUR VEHICLE 433
7

Cavity Cartridge
FuseMini
FuseDescription
J21 20 Amp
BlueÐ Front Washer/Rear
Washer - if equipped
J22 25 Amp
WhiteÐ Sunroof Module - if
equipped
M1 Ð 15 Amp
BlueStop Light Switch
Feed Ð Center High
Mounted Stop Light
(CHMSL)
M2 Ð 20 Amp
YellowTrailer Lighting - if
equipped
M3ÐÐÐ
M4 Ð 10 Amp
RedTrailer Tow - if
equipped
M5 Ð 25 Amp
NaturalPower Inverter ± if
equippedCavity Cartridge
FuseMini
FuseDescription
M6 Ð 20 Amp
YellowPower Outlet #1 (ci-
gar lighter)/Rain Sen-
sor - if equipped/
Trailer Tow - if
equipped
M7 Ð 20 Amp
YellowPower Outlet #2
(BATT/ACC SELECT)
M8 Ð 20 Amp
YellowFront Heated Seats -
if equipped
M9ÐÐÐ
M10 Ð 15 Amp
BlueHands Free Module
(HFM) ± if equipped/
Universal Garage
Door Opener (UGDO)
± if equipped/Vanity
Light
438 MAINTAINING YOUR VEHICLE

Cavity Cartridge
FuseMini
FuseDescription
M17 Ð 15 Amp
BlueExterior Lighting Ð
Left Front Park &
Side Marker, Left Tail
& Running, License
Lights
M18 Ð 15 Amp
BlueExterior Lighting Ð
Right Front Park &
Side Marker, Right
Tail & Running Lights
M19 Ð 25 Amp
NaturalAuto Shut Down
(ASD) #1 & #2Cavity Cartridge
FuseMini
FuseDescription
M20 Ð 15 Amp
BlueInterior Lighting/
Steering Wheel
Switches - if
equipped/Switch
Bank/Electronic Ve-
hicle Information
Center (EVIC) - if
equipped
M21 Ð 20 Amp
YellowAuto Shut Down
(ASD) #3
M22 Ð 10 Amp
RedRight Horn (Hi/Low)
M23 Ð 10 Amp
RedLeft Horn (Hi/Low)
M25 Ð 20 Amp
YellowFuel Pump
440 MAINTAINING YOUR VEHICLE

Cavity Cartridge
FuseMini
FuseDescription
M26 Ð 10 Amp
RedPower Mirror Switch/
Driver Window
Switch
M27 Ð 10 Amp
RedIgnition Switch/
Wireless Control
Module (WCM)/
Steering Column Lock
- if equipped
M28 Ð 10 Amp
RedPowertrain Control
Module (PCM)
M29 Ð 10 Amp
RedOccupant Classifica-
tion Module (OCM)
M30 Ð 15 Amp
BlueRear Wiper Module -
if equipped/
Diagnostic Link
M31 Ð 20 Amp
YellowBack-Up LightsCavity Cartridge
FuseMini
FuseDescription
M32 Ð 10 Amp
RedOccupant Restraint
Controller (ORC)
M33 Ð 10 Amp
RedPowertrain Control
Module (PCM)
M34 Ð 10 Amp
RedPark Assist Module -
if equipped/Heating,
Ventilation, & Air
Conditioning (HVAC)
Module - if
equipped/Compass
Module - if equipped
M35 Ð 10 Amp
RedHeated Mirrors - if
equipped
M36 Ð Ð Ð
MAINTAINING YOUR VEHICLE 441
7

Cavity Cartridge
FuseMini
FuseDescription
M37 Ð 10 Amp
RedAnti-Lock Brake Sys-
tem (ABS)/Electronic
Stability Program
(ESP) Module/Stop
Light Switch
M38 Ð 25 Amp
NaturalDoor & Liftgate
Lock/Unlock MotorsCAUTION!
²When installing the Integrated Power Module
cover, it is important to ensure the cover is prop-
erly positioned and fully latched. Failure to do so
may allow water to get into the Integrated Power
Module, and possibly result in an electrical system
failure.
²When replacing a blown fuse, it is important to
use only a fuse having the correct amperage rating.
The use of a fuse with a rating other than indicated
may result in a dangerous electrical system over-
load. If a properly rated fuse continues to blow, it
indicates a problem in the circuit that must be
corrected.
442 MAINTAINING YOUR VEHICLE