2008 JEEP LIBERTY service

N
Neutral - Disengages both the front driveshaft and rear
driveshaft from the powertrain. To be used for flat
towing behind another vehicle. Refer to ªRecreational
Towingº in this section for more information.
Transfer Case Position Indicator Lights
The 4WD indicator lights are located in the instrument
cluster. The ªNº (Neutral) indicator light is located on the
4WD Control Switch. If there is no indicator light on or
flashing, the transfer case position is 2-wheel drive
(2WD). If the indicator light is on, the desired position
(4WD LOCK, 4WD LOW, or NEUTRAL) has been ob-
tained.
If One or More Shift Requirements are not met:
²An indicator light will flash.
²The transfer casewill notshift.NOTE:The ªSERV 4WDº warning light monitors the
electric shift 4WD system. If this light remains on after
engine start up, or it illuminates during driving, it means
that the 4WD system is not functioning properly and that
service is required.
Shifting Procedures
NOTE:If any of the requirements to select a new
transfer case position have not been met, the transfer case
will not shift, the indicator light for the previous position
will remain ON, and the newly selected position indica-
tor light will continue to flash until all the requirements
for the selected position have been met. To retry a shift,
move the 4WD Control Switch back to the original
position, make certain all shift requirements have been
met, wait five (5) seconds, and try the shift again.
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5

Interlocking Ignition Systemº under ªManual Transmis-
sionº or to ªStarting Proceduresº in this section for
details.
N
Neutral - Disengages both the front driveshaft and rear
driveshaft from the powertrain. To be used for flat
towing behind another vehicle. Refer to ªRecreational
Towingº in this section for more information.
Transfer Case Position Indicator Lights
The 4WD indicator lights are located in the instrument
cluster. The ªNº (Neutral) indicator light is located on the
4WD Control Switch. If there is no indicator light on or
flashing, the transfer case position is 2-wheel drive
(2WD). If the indicator light is on, the desired position
(4WD AUTO, 4WD LOW, or NEUTRAL) has been ob-
tained.If One or More Shift Requirements are not met:
²An indicator light will flash.
²The transfer casewill notshift.
NOTE:The ªSERV 4WDº warning light monitors the
electric shift 4WD system. If this light remains on after
engine start up, or it illuminates during driving, it means
that the 4WD system is not functioning properly and that
service is required.
Shifting Procedures
NOTE:If any of the requirements to select a new
transfer case position have not been met, the transfer case
will not shift, the indicator light for the previous position
will remain ON, and the newly selected position indica-
tor light will continue to flash until all the requirements
for the selected position have been met. To retry a shift,
move the 4WD Control Switch back to the original
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5

Traction Downhill
Shift the transmission into a low gear and the transfer
case to 4WD Low range. Let the vehicle go slowly down
the hill with all four wheels turning against engine
compression drag. This will permit you to control the
vehicle speed and direction.
When descending mountains or hills, repeated braking
can cause brake fade with loss of braking control. Avoid
repeated heavy braking by downshifting the transmis-
sion whenever possible.
After Driving Off-Road
Off-road operation puts more stress on your vehicle than
does most on-road driving. After going off-road, it is
always a good idea to check for damage. That way you
can get any problems taken care of right away and have
your vehicle ready when you need it.
²Completely inspect the underbody of your vehicle.
Check tires, body structure, steering, suspension, and
exhaust system for damage.
²Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
²Check for accumulations of plants or brush. These
things could be a fire hazard. They might hide damage
to fuel lines, brake hoses, axle pinion seals, and
propeller shafts.
²After extended operation in mud, sand, water, or
similar dirty conditions, have brake rotors, wheels,
brake linings, and axle yokes inspected and cleaned as
soon as possible.
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5

NOTE:Increased noise levels at the end of the steering
wheel travel are considered normal and do not indicate
that there is a problem with the power steering system.
Upon initial start-up in cold weather, the power steering
pump may make noise for a short amount of time. This is
due to the cold, thick fluid in the steering system. This
noise should be considered normal, and it does not in any
way damage the steering system.
WARNING!
Continued operation with reduced power steering
assist could pose a safety risk to yourself and others.
Service should be obtained as soon as possible.
CAUTION!
Prolonged operation of the steering system at the end
of the steering wheel travel will increase the steering
fluid temperature and it should be avoided when
possible. Damage to the power steering pump may
occur.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system commonly referred to as ESP. This
system includes ABS (Anti-Lock Brake System), TCS
(Traction Control System), BAS (Brake Assist System),
HSA (Hill Start Assist), ERM (Electronic Roll Mitigation),
and ESP (Electronic Stability Program). These systems
work together to enhance both vehicle stability and
control in various driving conditions.
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EXAMPLE:
Service Description:
95= Load Index
ÐA numerical code associated with the maximum load a tire can carry.
H= Speed Symbol
ÐA symbol indicating the range of speeds at which a tire can carry a load corresponding
to its load index under certain operating conditions.
ÐThe maximum speed corresponding to the Speed Symbol should only be achieved un-
der specified operating conditions (i.e. tire pressure, vehicle loading, road conditions, and
posted speed limits).
Load Identification:
(....blank....(= Absence of any text on sidewall of the tire indicates a Standard Load (SL) Tire
Extra Load (XL)= Extra Load (or Reinforced) Tire
Light Load= Light Load Tire
C,D,E= Load range associated with the maximum load a tire can carry at a specified pressure
Maximum LoadÐ Maximum Load indicates the maximum load this tire is designed to carry.
Maximum PressureÐ
Maximum Pressure indicates the maximum permissible cold tire inflation pressure for this tire.
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Life of Tire
The service life of a tire is dependent upon varying
factors including but not limited to:
²Driving style
²Tire pressure
²Distance driven
WARNING!
Tires and spare tire should be replaced after six years,
regardless of the remaining tread. Failure to follow
this warning can result in sudden tire failure. You
could lose control and have an accident resulting in
serious injury or death.Keep dismounted tires in a cool, dry place with as little
exposure to light as possible. Protect tires from contact
with oil, grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed (refer to the paragraph on
ªTread Wear Indicatorsº). Refer to the ªTire and Loading
Informationº placard for the size designation of your tire.
The service description and load identification will be
found on the original equipment tire. Failure to use
equivalent replacement tires may adversely affect the
safety, handling, and ride of your vehicle. We recommend
that you contact your original equipment or an autho-
rized tire dealer with any questions you may have on tire
specifications or capability.
342 STARTING AND OPERATING

upon the next ignition key cycle, a chime will sound and
the TPM Telltale Light will turn ON. In addition, the
EVIC will display a Low Pressure message and a graphic
showing the low tire pressure value flashing.
3. After driving the vehicle for up to 10 minutes above 15
mph (25 km/h) the TPM Telltale Light will turn OFF, as
long as no tire pressure is below the low-pressure warn-
ing limit in any of the four active road tires.
4. The EVIC will display a graphic showing the tire
pressure value in place of the flashing low tire pressure
value. The EVIC will also display a ªSPARE LOW
PRESSUREº message to remind you to service the flat
tire.
NOTE:
Vehicles with Compact Spare
1. The compact spare tire does not have a tire pressure
monitoring sensor. Therefore, the TPMS will not monitor
the pressure in the compact spare tire.2. If you install the compact spare tire in place of a road
tire that has a pressure below the low-pressure warning
limit, upon the next ignition key cycle, the TPM Telltale
Light will remain ON and a chime will sound. In
addition, the graphic in the EVIC will still display a
flashing pressure value.
3. After driving the vehicle for up to 10 minutes above 15
mph (25 km/h), the TPM Telltale Light will flash on and
off for 75 seconds and then remain on solid. In addition,
the EVIC will display a9CHECK TPM SYSTEM9message
for 3 seconds and then display dashes (- -) in place of the
pressure value.
4. For each subsequent ignition key cycle, a chime will
sound, the TPM Telltale Light will flash on and off for 75
seconds and then remain on solid, and the EVIC will
display a9CHECK TPM SYSTEM9message for 3 seconds
and then display dashes (- -) in place of the pressure
value.
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high speeds can cause damage and immediate service is
required. Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you experi-
ence these symptoms, try another brand of gasoline
before considering service for the vehicle.
Over 40 auto manufacturers worldwide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) which define fuel properties
necessary to deliver enhanced emissions, performance,
and durability for your vehicle. The manufacturer recom-
mends the use of gasoline that meets the WWFC speci-
fications if they are available.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as ªReformulated Gasoline.º
Reformulated gasolines contain oxygenates, and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.The manufacturer supports the use of reformulated gaso-
lines. Properly blended reformulated gasolines will pro-
vide excellent performance and durability of engine and
fuel system components.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxy-
genates such as 10% ethanol, MTBE, and ETBE. Oxygen-
ates are required in some areas of the country during the
winter months to reduce carbon monoxide emissions.
Fuels blended with these oxygenates may be used in
your vehicle.
CAUTION!
DO NOT use gasolines containing Methanol or E85
Ethanol. Use of these blends may result in starting
and driveability problems and may damage critical
fuel system components.
356 STARTING AND OPERATING