2008 JEEP LIBERTY towing

WARNING!
Any procedure other than above could result in:
1. Personal injury caused by electrolyte squirting out
the battery vent;
2. Personal injury or property damage due to battery
explosion;
3. Damage to charging system of booster vehicle or
of immobilized vehicle.
TOWING A DISABLED VEHICLE
Proper towing or lifting equipment is required to prevent
damage to your vehicle. Use of safety chains is recom-
mended.Attach towing device to main structural mem-
bers of the vehicle Ð not to bumpers or associated
brackets. State and local laws applying to vehicles
under tow must be observed.
WHAT TO DO IN EMERGENCIES 393
6

TOWING METHOD
NOTE:The transmission & transfer case must be in ªNº Neutral under any towing configuration.
Model Flat Towing (all four
wheels on the
ground)Flat Bed Towing
(Recommended for
speeds > 30 mph (48
km/h) & distances >
15 miles (24 km)
and/or when using a
vehicle trailer [All
four wheels sus-
pended off the
ground])Front Wheels
Raised, Rear Wheels
on the GroundRear Wheels Raised,
Front Wheels on the
Ground
2 Wheel Drive Rear driveshaft re-
movedAll four wheels sus-
pended off the
groundSpeed < 30 mph (48
km/h) & distance <
15 miles (24 km)Speed < 30 mph (48
km/h) & distance <
15 miles (24 km)
4 Wheel Drive Yes All four wheels sus-
pended off the
groundNot Recommended Not Recommended
394 WHAT TO DO IN EMERGENCIES

ONBOARD DIAGNOSTIC SYSTEM Ð 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 ªMalfunction Indicator Light.º 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 dealer for service as soon as
possible.CAUTION!
²Prolonged driving with the ªMalfunction Indica-
tor Lightº on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
²If the ªMalfunction Indicator Lightº is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
MAINTAINING YOUR VEHICLE 399
7

To minimize the possibility of catalytic converter dam-
age:
²Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
²Do not try to start the engine by pushing or towing the
vehicle.
²Do not idle the engine with any ignition coil connec-
tors disconnected for prolonged periods.
²Do not idle the engine for prolonged periods during
very rough idle or malfunctioning operating condi-
tions.
²Do not allow vehicle to run out of fuel.
Crankcase Emission Control System
Proper operation of this system depends on freedom
from sticking or plugging due to deposits. As vehicle
mileage builds up, the PCV valve and passages may
accumulate deposits. If a valve is not working properly,
replace it with a new valve. DO NOT ATTEMPT TO
CLEAN THE OLD PCV VALVE!
Check ventilation hose for indication of damage or
plugging deposits. Replace if necessary.
Maintenance-Free Battery
Your vehicle is equipped with a maintenance-free battery.
You will never have to add water, nor is periodic main-
tenance required.
MAINTAINING YOUR VEHICLE 409
7

Automatic Transmission
Fluid Level Check
Your vehicle is equipped with a capped dipstick tube that
is sealed and it should not be tampered with. Your
authorized dealer has the proper tools to ensure that the
fluid level is set properly.
CAUTION!
Using a transmission fluid other than the manufac-
turer's recommended fluid may cause deterioration
in transmission shift quality and/or torque converter
shudder. Using a transmission fluid other than that
recommended by the manufacturer will result in
more frequent fluid and filter changes. Refer to
ªFluids, Lubricants, and Genuine Partsº in this sec-
tion for the correct fluid type.
Fluid and Filter Changes
Change the automatic transmission fluid and filter at the
intervals shown in the ªMaintenance Scheduleº in Sec-
tion 8 of this manual.
In addition, change the fluid and filter if the transmission
is disassembled for any reason.
NOTE:Be sure to follow the ªpolice, taxi, fleet, off-road,
or frequent trailer towingº maintenance interval if appli-
cable.
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.
MAINTAINING YOUR VEHICLE 425
7

NOTE:Be sure to follow the ªpolice, taxi, fleet, off-road,
or frequent trailer towingº maintenance interval if appli-
cable.
Front/Rear Axle Fluid
Fluid Level Check
The lubricant level should be at bottom edge of the oil fill
hole.
Adding Fluid
Add lubricant only at the fill hole and only to the level
specified above.
Lubricant Selection
Use only manufacturer's recommended lubricant. Refer
to ªFluids, Lubricants, and Genuine Partsº in this section
for the correct fluid type.
Frequency of Fluid Change
Under normal operating conditions, the lubricant in-
stalled at the factory will give satisfactory lubrication forthe life of the vehicle. Lubricant changes are not neces-
sary unless the lubricant becomes contaminated with
water. Change the lubricant immediately if contaminated
with water.
NOTE:Be sure to follow the ªpolice, taxi, fleet, off-road,
or frequent trailer towingº maintenance interval if appli-
cable.
Appearance Care And Protection From Corrosion
Protection Of Body And Paint From Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice and those that are sprayed on
trees and road surfaces during other seasons are highly
corrosive to the metal in your vehicle. Outside parking,
which exposes your vehicle to airborne contaminants,
road surfaces on which the vehicle is operated, extreme
428 MAINTAINING YOUR VEHICLE

Required Maintenance Intervals
Perform Maintenance Every(Where time and mileage
are listed, follow the interval that occurs first.)
Maintenance Items Miles Kilometers or Months
Change the engine oil and engine oil filter. 6,000 10 000 6
Rotate the tires. 6,000 10 000 6
If using your vehicle in dusty or off-road conditions,
inspect the engine air cleaner filter, and replace if
necessary.12,000 20 000 12
Inspect the brake linings, and replace if necessary. 12,000 20 000 12
Replace the air conditioning air filter (if equipped). 12,000 20 000 12
Inspect the front & rear axle lubricant. Change the lu-
bricant if using your vehicle for police, taxi, fleet, off-
road, or frequent trailer towing.18,000 30 000 18
Inspect the CV Joints. Perform the first inspection at
12,000 miles (20 000 km) or 12 months.24,000 40 000 24
Inspect the exhaust system. Perform the first inspec-
tion at 12,000 miles (20 000 km) or 12 months.24,000 40 000 24
MAINTENANCE SCHEDULES 455
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Perform Maintenance Every(Where time and mileage
are listed, follow the interval that occurs first.)
Maintenance Items Miles Kilometers or Months
Inspect the front suspension, tie rod ends and boot
seals, and replace if necessary.24,000 40 000 24
Replace the engine air cleaner filter.30,000 50 000 30
Change the manual transmission fluid if using your
vehicle for any of the following: trailer towing, snow
plowing, heavy loading, taxi, police, delivery service
(commercial service), off-road, desert operation, or
more then 50% of your driving is at sustained high
speeds during hot weather, above 90ÉF (32ÉC).30,000 50 000 30
Inspect the transfer case fluid. 30,000 50 000 30
Replace the spark plugs.30,000 50 000 30
Change the automatic transmission fluid & filter if
using your vehicle for police, taxi, fleet, off-road, or
frequent trailer towing.60,000 100 000 60
456 MAINTENANCE SCHEDULES
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