2006 JEEP GRAND CHEROKEE Owners Manual

5. Connect the other cable, first to the negative terminal
of the booster battery and then connect the other end to
a non-paint metal surface on the engine of the vehicle
with the discharged battery. Make sure you have a good
contact on the engine.
6. Start the engine in the vehicle which has the booster
battery, let the engine idle a few minutes, then start the
engine in the vehicle with the discharged battery.
7. When removing the jumper cables, reverse the above
sequence exactly. Be careful of the moving belts and fan.
NOTE:To start the vehicle following connection of a
booster battery, the Security Alarm System must first be
disabled by cycling a front door key cylinder or by using
the keyless entry transmitter.WARNING!
Jump starting can be dangerous. To avoid personal
injury or damage to electrical components in vehicle,
observe the following warnings:
•Battery fluid is a corrosive acid solution and can burn
or even blind you. Don’t allow battery fluid to contact
your eyes, skin, or clothing. Don’t lean over a battery
when attaching clamps. If acid splashes in eyes or on
skin, flush the area immediately with large amounts of
water.
•Do not use a booster battery or any other booster
source that has a greater than 12–volt system, i.e., do
not use a 24–volt power source.
•Never attempt to jump start a discharged battery that
is frozen, because it could rupture or explode during
jump starting.
WHAT TO DO IN EMERGENCIES 337
6

•Be sure your vehicle is not touching the jump start
vehicle.
•Observe all Battery Warnings in Section 7 of this
manual, while jump starting your vehicle.
WARNING!
Do not attempt to push or tow your vehicle to get it
started. Unburned fuel could enter the catalytic
converter and, once the engine has started, ignite and
damage the converter and vehicle.
EMERGENCY TOW HOOKS—IF EQUIPPED
If your vehicle is equipped with tow hooks, there will be
one in the rear and two mounted on the front of the
vehicle. The rear hook will be located on the driver’s side
of the vehicle.
NOTE:For off-road recovery, it is recommended to use
both of the front tow hooks to minimize the risk of
damage to the vehicle.
CAUTION!
Tow hooks are for emergency use only, to rescue a
vehicle stranded off road. Do not use tow hooks for
tow truck hookup or highway towing. You could
damage your vehicle.
338 WHAT TO DO IN EMERGENCIES

WARNING!
Stand clear of vehicles when pulling with tow
hooks. Tow straps and chains may break, causing
serious injury.
TOWING A DISABLED VEHICLE
2WD Models Only
Provided the transmission is operable, tow only in N
(Neutral) at speeds not exceeding 30 mph (48 km/h), for
distances of not more than 15 miles (24 km). Towing at
more than 30 mph (48 km/h) or for more than 15 miles
(24 km) can cause severe transmission damage. If the
transmission is not operable, or the vehicle must be
towed faster than 30 mph (48 km/h) or farther than 15
miles (24 km), remove the driveshaft or tow with all four
wheelsOFFthe ground. Acceptable methods are to towthe vehicle on a flatbed or with one end of the vehicle
raised and the other end on a towing dolly.
4WD Models Only
The manufacturer recommends towing with all four
wheelsOFFthe ground. Acceptable methods are to tow
the vehicle on a flatbed or with one end of the vehicle
raised and the other end on a towing dolly.
WHAT TO DO IN EMERGENCIES 339
6

MAINTAINING YOUR VEHICLE
CONTENTS

3.7L Engine...........................344

4.7L Engine...........................345

5.7L Engine...........................346

Onboard Diagnostic System—OBDII........347
▫Loose Fuel Filler Cap Message............347

Emissions Inspection And Maintenance
Programs............................348

Replacement Parts......................349

Dealer Service.........................350
Maintenance Procedures..................350
▫Engine Oil..........................351
▫Drive Belts—Check Condition And
Tensioner...........................354
▫Spark Plugs.........................355
▫Catalytic Converter....................355
▫Crankcase Emission Control System........357
▫Air Cleaner Filter.....................358
▫Maintenance-Free Battery................358
7

▫Air Conditioner Maintenance.............359
▫Power Steering Fluid Check..............360
▫Body Lubrication.....................362
▫Windshield Wiper Blades................362
▫Windshield Washers—Front And Rear.....362
▫Exhaust System......................363
▫Cooling System.......................364
▫Hoses And Vacuum/Vapor Harnesses.......369
▫Brake System........................369
▫Automatic Transmission................371
▫Transfer Case........................374
▫Front/Rear Axle Fluid..................375▫Appearance Care And Protection From
Corrosion...........................376

Fuse Panel...........................380
▫Interior Fuses........................380
▫Underhood Fuses
(Power Distribution Center)..............382
▫Underhood Fuses
(Integrated Power Module)..............384

Vehicle Storage........................385

Replacement Bulbs......................386

Bulb Replacement......................387
▫Head Light..........................387
▫Front Turn Signal.....................388
▫Front Fog Light......................389
342 MAINTAINING YOUR VEHICLE

▫Rear Tail, Stop, Turn Signal, And Back-Up
Lights.............................390
▫Center High Mounted Stop Light (CHMSL) . . . 391

Fluid Capacities........................392
Fluids, Lubricants, And Genuine Parts........393
▫Engine.............................393
▫Chassis............................394
MAINTAINING YOUR VEHICLE 343
7

3.7L ENGINE
344 MAINTAINING YOUR VEHICLE