service JEEP GRAND CHEROKEE 2009 WK / 3.G Repair Manual

To prevent dirt and water from entering the transmission
after checking or replenishing fluid, make certain that the
dipstick cap is properly reseated. It is normal for the
dipstick cap to spring back slightly from its fully seated
position, as long as its seal remains engaged in the
dipstick tube.
Maintenance After Off-Road Driving
After extended operation in mud, sand or water, or
similar dirty conditions, have your brake discs, brake
linings, and axle joints inspected and cleaned as soon as
possible. This will prevent any abrasive material from
causing excessive wear or unpredictable braking action.
After driving off-road, completely inspect the underbody
of your vehicle. Check the tires, body structure, steering,
suspension and exhaust system for damage. Check
threaded fasteners for looseness, particularly on the
chassis, drivetrain components, steering and suspension.
Retighten, if required, to torque values specified in theService Manual. Also check for accumulations of vegeta-
tion or brush that could become a fire hazard, or conceal
damage to fuel lines, brake hoses, axle pinion seals, and
propeller shafts.
CAUTION!
Under frequent heavy-duty driving conditions,
change all lubricants, and lubricate body compo-
nents, all driveline joints and steering linkage more
often than in normal service, to prevent excessive
wear.
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
436 MAINTAINING YOUR VEHICLE

Cav-
ityCartridge
FuseMini-Fuse Description
17 20 Amp
YellowRear Fog Lamps (Ex-
port Only)
18 20 Amp
YellowFront Control Module
(FCM) Batt #1
19 20 Amp
YellowLt Trailer-Tow Stop/
Turn
20 20 Amp
YellowFront Control Module
(FCM) Batt #3
21 20 Amp
YellowRt Trailer-Tow Stop/
Turn
22 30 Amp
PinkFinal Drive Control
Module (FDCM)
MOD
23 50 Amp
RedRadiator Fan
27 15 Amp
BlueIgnition Off Draw
(IOD) #1Cav-
ityCartridge
FuseMini-Fuse Description
28 20 Amp
YellowIgnition Off Draw
(IOD) #2
29 10 Amp
RedOccupant Restraint
Controller (ORC) R/S
30 10 Amp
RedOccupant Restraint
Controller (ORC) R/O
VEHICLE STORAGE
If you are leaving your vehicle dormant for more than
21 days you may want to take steps to protect your
battery. You may:
•Remove fuse #27 in the Intelligent Power Module
labeled Ignition-Off Draw (IOD#1).
•Or, disconnect the negative cable from the battery.
•Anytime you store your vehicle, or keep it out of
service (i.e. vacation) for two weeks or more, run the
448 MAINTAINING YOUR VEHICLE

air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
REPLACEMENT BULBS
Interior Lights Bulb Type
Glove Box Light......................... 194
Grab Handle Light................L002825W5W
Overhead Console Reading Lights..........VT4976
Rear Cargo Light.......................214–2
Visor Vanity Light.....................V26377
Underpanel Courtesy Lights................. 906
Instrument Cluster (General Illumination)....... 103
Telltale/Hazard Light...................... 74Exterior Lights Bulb Type
Backup Lights.........................3157K
Front Fog Lights........................9145
Front Park/Turn Light...................3157A
Front Side Marker...................... W5W
Headlights (Low Beam)...................9006
Headlights (High Beam)...................9005
Rear Turn/Stop/Tail Lights...............3157K
NOTE:Numbers refer to commercial bulb types that
can be purchased from your authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
MAINTAINING YOUR VEHICLE 449
7

BULB REPLACEMENT
High Intensity Discharge Headlights (HID) — If
Equipped
The headlights are a type of high voltage discharge tube.
High voltage can remain in the circuit even with the
headlight switch off and the key removed.Because of
this, you should not attempt to service a headlight bulb
yourself. If a headlight bulb fails, take your vehicle to
an authorized dealer for service.
WARNING!
A transient high tension occurs at the bulb sockets of
High Intensity Discharge (HID) headlights when the
headlight switch is turned ON. It may cause serious
electrical shock or electrocution if not serviced prop-
erly. See your authorized dealer for service.NOTE:On vehicles equipped with High Intensity Dis-
charge Headlights (HID), when the headlights are turned
on, there is a blue hue to the lights. This diminishes and
becomes more white after approximately 10 seconds, as
the system charges.
450 MAINTAINING YOUR VEHICLE

Component Fluid, Lubricant, or Genuine Part
Fuel Selection (3.7L and 4.7L Engine) 87 Octane
Fuel Selection (5.7L Engine) 87 Octane Acceptable - 89 Octane Recommended
Fuel Selection (3.0L Diesel Engine) Use good quality diesel fuel from a reputable supplier in your vehicle. The
manufacturer requires that you must fuel this vehicle with Ultra Low Sul-
fur Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use
of Low Sulfur Highway Diesel fuel (500 ppm Sulfur maximum) to avoid
damage to the emissions control system. For most year-round service, No.
2 diesel fuel meeting ASTM specification D-975 Grade S15 will provide
good performance. If the vehicle is exposed to extreme cold (below 20F or
-7C), or is required to operate at colder-than-normal conditions for pro-
longed periods, use climatized No. 2 diesel fuel or dilute the No. 2 diesel
fuel with 50% No. 1 diesel fuel. This will provide better protection from
fuel gelling or wax-plugging of the fuel filters. This vehicle is fully compat-
ible with biodiesel blends up to 5% biodiesel meeting ASTM specification
D-975.
MAINTAINING YOUR VEHICLE 459
7

EMISSIONS CONTROL SYSTEM MAINTENANCE
The Scheduled Maintenance services listed inbold type
must be done at the times or mileages specified to ensure
the continued proper functioning of the emissions control
system. These and all other maintenance services in-
cluded in this manual, should be done to provide best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions, such as dusty areas and very short trip
driving.
Inspection and service should also be done anytime a
malfunction is suspected.
NOTE:Maintenance, replacement or repair of the emis-
sions control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part that has been
certified pursuant to U.S. EPA or in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES
Maintenance Schedule — Gasoline Engine
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
On Electronic Vehicle Information Center (EVIC)
equipped vehicles “Oil Change Required” will be dis-
played in the EVIC and a single chime will sound,
indicating that an oil change is necessary.
Based on engine operation conditions the oil change
indicator message will illuminate, this means that service
is required for your vehicle. Have your vehicle serviced
as soon as possible, within the next 500 miles (805 km).
NOTE:
•The oil change indicator message will not monitor the
time since the last oil change. Change your vehicles oil
462 MAINTENANCE SCHEDULES
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6,000 Miles (10,000 km) or
6 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil
filter.
❏Rotate tires.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
12,000 Miles (20,000 km) or 12 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏Rotate tires.
❏If using your vehicle for any of the following: Dusty or off-road conditions. Inspect the
engine air cleaner filter; replace if necessary.
❏Inspect the brake linings, replace if necessary.
❏Inspect the CV joints. Perform the first inspection at 12,000 miles (20 000 km) or
12 months.
❏Inspect exhaust system. Perform the first inspection at 12,000 miles (20 000 km) or
12 months.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
MAINTENANCE SCHEDULES 465
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18,000 Miles (30,000 km) or
18 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏Rotate tires.
❏Inspect the front and rear axle fluid,
change if using your vehicle for police,
taxi, fleet, off-road or frequent trailer
towing.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
24,000 Miles (40,000 km) or
24 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏Rotate tires.
❏If using your vehicle for any of the
following: Dusty or off-road conditions.
Inspect the engine air cleaner filter;
replace if necessary.
❏Inspect the brake linings, replace if
necessary.
❏Inspect the CV joints.
❏Inspect exhaust system.
❏Inspect the front suspension, tie rod ends
and boot seals; replace if necessary.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
30,000 Miles (50,000 km) or
30 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏Rotate tires.
❏Replace the engine air cleaner filter.
❏Replace the top row of spark plugs
(4.7L Engine).
❏Replace the spark plugs (3.7L and
5.7L Engines).
❏Adjust parking brake on vehicles
equipped with four-wheel disc brakes.
❏Inspect the transfer case fluid.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
466 MAINTENANCE SCHEDULES
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36,000 Miles (60,000 km) or
36 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏Rotate tires.
❏If using your vehicle for any of the
following: Dusty or off-road conditions.
Inspect the engine air cleaner filter;
replace if necessary.
❏Inspect the brake linings, replace if
necessary.
❏Inspect the front and rear axle fluid,
change if using your vehicle for police,
taxi, fleet, off-road or frequent trailer
towing.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
42,000 Miles (70,000 km) or
42 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏Rotate tires.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
48,000 Miles (80,000 km) or
48 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏Rotate tires.
❏If using your vehicle for any of the
following: Dusty or off-road conditions.
Inspect the engine air cleaner filter;
replace if necessary.
❏Inspect the brake linings; replace if
necessary.
❏Inspect the CV joints.
❏Inspect exhaust system.
❏Inspect the front suspension, tie rod ends
and boot seals; replace if necessary.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
MAINTENANCE SCHEDULES 467
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54,000 Miles (90,000 km) or
54 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏Rotate tires.
❏Inspect the front and rear axle fluid,
change if using your vehicle for police,
taxi, fleet, off-road or frequent trailer
towing.
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
60,000 Miles (100,000 km) or 60 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏Rotate tires.
❏Replace the engine air cleaner filter.
❏Inspect the brake linings; replace if necessary.
❏Replace the ignition cables (3.7L Engine).
❏Replace the top row of spark plugs (4.7L Engine).
❏Replace the spark plugs (3.7L and 5.7L Engines).
❏Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏Change the automatic transmission fluid and filter(s) if using your vehicle for any of the
following: police, taxi, fleet, or frequent trailer towing.
❏Change the transfer case fluid if using your vehicle for any of the following: police, taxi,
fleet, or frequent trailer towing.
❏Flush and replace the engine coolant if not done at 102,000 miles (170 000 km).
Odometer Reading Date
Repair Order # Dealer Code
Signature Authorized Chrysler Dealer
468 MAINTENANCE SCHEDULES
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