2009 JEEP GRAND CHEROKEE Owners Manual

WARNING!
•Battery fluid is a corrosive acid solution; do not
allow battery fluid to contact eyes, skin or cloth-
ing. Do not lean over a battery when attaching
clamps or allow the clamps to touch each other. If
acid splashes in eyes or on skin, flush contami-
nated area immediately with large quantities of
water.
•A battery generates hydrogen gas which is flam-
mable and explosive. Keep flame or spark away
from the vent holes.
•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.
1. Remove all metal jewelry such as watch bands or
bracelets, which might make an unintended electrical
contact.2. Park the booster vehicle within cable reach but with-
out letting the vehicles touch. Set the parking brake on
both vehicles, place the transmission in PARK, and turn
the ignition OFF.
3. Turn off the heater, radio, and all unnecessary electri-
cal loads.
4. Connect one end of a jumper cable to the positive
terminal of the booster battery. Connect the other end of
the same cable to the positive terminal of the discharged
battery.WARNING!
Do not permit vehicles to touch each other as this
could establish a ground connection, and personal
injury could result.
WHAT TO DO IN EMERGENCIES 399
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5. Connect the other cable, first to the negative terminal
of the booster battery and then to 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 that 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.
WARNING!
Any procedure other than above could result in:
•Personal injury caused by electrolyte squirting out
the battery vent.
•Personal injury or property damage due to battery
explosion.
(Continued)
WARNING! (Continued)
•Damage to charging system of booster vehicle or
of immobilized vehicle.
•You should not try to start your vehicle by pushing
or towing.
•Do not connect the cable to the negative post of the
discharge battery. The resulting electrical spark
could cause the battery to explode.
•During cold weather when temperatures are be-
low freezing point, electrolyte in a discharged
battery may freeze. Do not attempt jump-starting
because the battery could rupture or explode. The
battery temperature must be brought up above
freezing point before attempting jump-start.
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
400 WHAT TO DO IN EMERGENCIES

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.
WARNING!
Stand clear of vehicles when pulling with tow hooks.
Tow straps and chains may break, causing serious
injury.
TOWING A DISABLED VEHICLE
2–Wheel Drive Models Only
Provided the transmission is operable, tow only in NEU-
TRAL 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
tow the vehicle on a flatbed, or with one end of the
vehicle raised and the other end on a towing dolly.
4–Wheel Drive 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 401
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MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment – 3.7L.............. 406
Engine Compartment – 4.7L.............. 407
Engine Compartment – 5.7L.............. 408
Engine Compartment – 3.0L Diesel......... 409
Onboard Diagnostic System — OBD II...... 410
▫Loose Fuel Filler Cap Message........... 410
Emissions Inspection And Maintenance
Programs............................ 411
Replacement Parts..................... 413Dealer Service........................ 413
Maintenance Procedures................. 413
▫Engine Oil......................... 414
▫Engine Air Cleaner Filter............... 417
▫Maintenance-Free Battery.............. 418
▫Air Conditioner Maintenance............ 419
▫Body Lubrication.................... 420
▫Windshield Wiper Blades............... 421
▫Adding Washer Fluid................. 421
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▫Exhaust System..................... 422
▫Cooling System..................... 424
▫Brake System....................... 430
▫Front/Rear Axle Fluid................. 431
▫Transfer Case....................... 432
▫Automatic Transmission............... 433
▫Maintenance After Off-Road Driving...... 436
▫Appearance Care And Protection From
Corrosion.......................... 436
Fuses.............................. 441
▫Interior Fuses....................... 441
▫Underhood Fuses (Power Distribution
Center)........................... 444▫Underhood Fuses
(Integrated Power Module)............. 447
Vehicle Storage....................... 448
Replacement Bulbs.................... 449
Bulb Replacement..................... 450
▫High Intensity Discharge Headlights (HID)
— If Equipped...................... 450
▫Headlight.......................... 451
▫Front Turn Signal.................... 452
▫Front Fog Light..................... 453
▫Rear Tail, Stop, Turn Signal, And Backup
Lights............................ 454
▫Center High-Mounted Stop Light (CHMSL) . . 455
404 MAINTAINING YOUR VEHICLE

Fluids And Capacities.................. 456
Fluids, Lubricants, And Genuine Parts....... 458▫Engine............................ 458
▫Chassis........................... 460
MAINTAINING YOUR VEHICLE 405
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ENGINE COMPARTMENT – 3.7L
1 — Engine Coolant Reservoir 6 — Battery
2 — Engine Oil Dipstick 7 — Washer Fluid Reservoir
3 — Power Distribution Center 8 — Engine Oil Fill
4 — Brake Fluid Reservoir 9 — Coolant Pressure Cap
5 — Integrated Power Module 10 — Air Cleaner Filter 406 MAINTAINING YOUR VEHICLE