oil JEEP GRAND CHEROKEE 2008 WK / 3.G Owners Manual

Programming Additional Transmitters
Refer to SENTRY KEY ªCustomer Key (Fob) Program-
ming.º
If you do not have a programmed transmitter, contact
your dealer for details.
Transmitter Battery Service
The recommended replacement battery is one CR2032
battery.
NOTE:
Perchlorate Material Ð special handling may
apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate
NOTE:Do not touch the battery terminals that are on
the back housing or the printed circuit board.
1. Battery access is through a door located on the rear of
the FOBIK. Insert a small, flat bladed screwdriver into the
slot and gently pry open the access door.2. Remove and replace the batteries. Avoid touching the
new batteries with your fingers. Skin oils may cause
battery deterioration. If you touch a battery, clean it with
rubbing alcohol.
3. Reposition the access door panel over the battery
opening and snap into place.FOBIK Battery Replacement
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 25
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ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine in
your new vehicle.
Drive moderately during the first 300 miles (500 km).
After the initial 60 miles (100 km), speeds up to 50 or 55
mph (80 or 90 km/h) are desirable.
While cruising, brief full-throttle acceleration, within the
limits of local traffic laws, contributes to a good break-in.
Wide-open throttle acceleration in low gear can be detri-
mental and should be avoided.The engine oil installed in the engine at the factory is a
high quality energy conserving type lubricant. Oil
changes should be consistent with anticipated climate
conditions under which vehicle operations will occur.
The recommended viscosity and quality grades are
shown in Section 7 of this manual. NON-DETERGENT
OR STRAIGHT MINERAL OILS MUST NEVER BE
USED.
A new engine may consume some oil during its first few
thousand miles (kilometers) of operation. This should be
considered as a normal part of the break-in and not
interpreted as an indication of difficulty.
68 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Seat belt assemblies must be replaced after an accident if
they have been damaged (bent retractor, torn webbing,
etc.). If there is any question regarding belt or retractor
condition, replace the belt.
Airbag Warning Light
The light should come on and remain on for 6 to 8
seconds as a bulb check when the ignition switch is first
turned on. If the bulb is not lit during starting, have it
replaced. If the light stays on or comes on while driving,
have the system checked by an authorized dealer.
Defrosters
Check operation by selecting the defrost mode and place
the blower control on high speed. You should be able to
feel the air directed against the windshield. See your
authorized dealer for service if your defroster is inoper-
able.
Safety Checks You Should Make Outside The
Vehicle
Tires
Examine tires for excessive tread wear or uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread. Inspect for tread cuts or sidewall
cracks. Check wheel nuts for tightness and tires (includ-
ing spare) for proper pressure.
Lights
Have someone observe the operation of all exterior lights
while you work the controls. Check turn signal and high
beam indicator lights on the instrument panel.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
coolant, oil or other fluid leaks. Also, if gasoline fumes
are detected, the cause should be located and corrected
immediately.
70 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

UNDERSTANDING YOUR INSTRUMENT PANEL
CONTENTS
mInstrument Panel And Controls.............185
mInstrument Cluster......................186
NGasoline Engine......................186
NDiesel Engine........................187
mInstrument Cluster Description.............188
mElectronic Vehicle Information Center (EVIC) . . . 196
NElectronic Vehicle Information Center (EVIC)
Displays............................198
NEngine Oil Change Indicator System........201NTrip Functions.......................201
NCompass Display.....................204
NPersonal Settings (Customer Programmable
Features)...........................206
NSystem Status........................211
mRadio General Information................212
NRadio Broadcast Signals.................212
NTwo Types Of Signals..................212
NElectrical Disturbances..................2124

8. Tachometer
The red segments indicate the maximum permissible
engine revolutions-per-minute (r.p.m. x 1000) for each
gear range. Before reaching the red area, ease up on the
accelerator.
9. Security Alarm System Indicator Light Ð If
Equipped
This light will flash rapidly for approximately 15 seconds
when the vehicle theft alarm is arming. The light will
flash at a slower speed continuously after the alarm is set.
The security light will also come on for about three
seconds when the ignition is first turned on.
10. Oil Pressure Warning Light
This light shows low engine oil pressure. The light
should turn on momentarily when the engine is
started. If the light turns on while driving, stop the
vehicle, and shut off the engine as soon as possible. A
continuous chime will sound when this light turns on.Do not operate the vehicle until the cause is corrected.
This light does not show how much oil is in the engine.
The engine oil level must be checked under the hood.
11. Electronic Stability Program (ESP) Indicator
Light/Traction Control System (TCS) Indicator Light
This indicator light starts to flash as soon as the
tires lose traction and the ESP system becomes
active. The ªESP/TCS Indicator Lightº also
flashes when TCS is active. If the ªESP/TCS
Indicator Lightº begins to flash during acceleration, ease
up on the accelerator and apply as little throttle as
possible. Be sure to adapt your speed and driving to the
prevailing road conditions. The ªESP/TCS Indicator
Lightº will flash any time the ESP or TCS is active and
helping to improve vehicle stability. If the ªESP/TCS
Indicator Lightº is on solid, the ESP system has been
turned off by the driver or a temporary condition exists
that will not allow full ESP function.
190 UNDERSTANDING YOUR INSTRUMENT PANEL

The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If temperature gauge reads (H),
pull over and stop the vehicle. Idle the vehicle with
the air conditioner turned off until the pointer drops
back into the normal range. If the pointer remains on
the ªHº, and you hear continuous chimes, turn the
engine off immediately, and call for service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. If you decide to look under the hood your-
self, refer to Section 7 of this manual. Follow the
warnings under ªCooling System Pressure Cap.º
14. Electronic Vehicle Information Center Display
When the appropriate conditions exist, this display
shows the Electronic Vehicle Information Center (EVIC)
messages. Refer to ªElectronic Vehicle Information Cen-
terº later in this section.
15. TOW/HAUL Indicator Light Ð If Equipped
This light will illuminate when the TOW/
HAUL button has been selected. The TOW/
HAUL button is located in the center of the
instrument panel (below the climate controls).
UNDERSTANDING YOUR INSTRUMENT PANEL 193
4

²HOOD/GATE/DOOR OPEN (with graphic)
²HOOD/GATE/DOORS OPEN (with graphic)
²LIFTGLASS/DOOR OPEN (with graphic)
²LIFTGLASS/DOORS OPEN (with graphic)
²LIFTGLASS/HOOD OPEN (with graphic)
²WASHER FLUID LOW (with graphic)
²COOLANT LOW (with graphic)
²OIL CHANGE REQUIRED
²OIL CHANGE RESET
²CHECK GAUGES
²AUTO HIGH BEAMS ON
²AUTO HIGH BEAMS OFF
²PARK ASSIST DISABLED
²SERVICE SUSPENSION
²SERVICE PARK ASSIST SYSTEM
²TRANSMISSION OVER TEMP
²CHECK SHIFT PROCEDURE
²SERVICE 4WD SYSTEM
²4WD SYSTEM IN NEUTRAL
²LOW BRAKE FLUID LEVEL
²WARNING! LIMIT SPEED
²CHECK GASCAP
²ESP OFF
²IOD FUSE OUT
²HILL DESCENT CONTROL
²MEMORY #1 POSITIONS SET
UNDERSTANDING YOUR INSTRUMENT PANEL 199
4

Engine Oil Change Indicator System
Oil Change Required (Gasoline Engines Only)
Your vehicle is equipped with an engine oil change
indicator system. The ªOil Change Requiredº message
will flash in the EVIC display for approximately 10
seconds after a single chime has sounded to indicate the
next scheduled oil change interval. The engine oil change
indicator system is duty cycle based, which means the
engine oil change interval may fluctuate dependent upon
your personal driving style.
Unless reset, this message will continue to display each
time you turn the ignition switch to the ON/RUN
position. To turn off the message temporarily, press and
release the MENU button. To reset the oil change indica-
tor system (after performing the scheduled maintenance)
refer to the following procedure.
1. Turn the ignition switch to the ON position (Do not
start the engine).2. Fully depress the accelerator pedal slowly three times
within 10 seconds.
3. Turn the ignition switch to the OFF/LOCK position.
NOTE:If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary repeat this procedure.
Trip Functions
Press and release the MENU button until one of the
following Trip Functions displays in the EVIC:
²Average Fuel Economy/Fuel Saver Mode (5.7L Engine
Only)
²Distance To Empty
²Trip A
²Trip B
²Elapsed Time
UNDERSTANDING YOUR INSTRUMENT PANEL 201
4

Operating Tips
Window Fogging
Windows will fog on the inside when the humidity inside
the vehicle is high. This often occurs in mild or cool
temperatures when it's rainy or humid. In most cases
turning on the Air-conditioning (pressing the snowflake
button) will clear the fog. Adjust the temperature control,
air direction and blower speed to maintain comfort.
As the temperature gets colder it may be necessary to
direct air onto the windshield. Adjust the temperature
control and blower speed to maintain comfort. Higher
blower speeds will reduce fogging. Interior fogging on
the windshield can be quickly removed by selecting the
defrost mode.
Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarettesmoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.Summer Operation
Air conditioned vehicles must be protected with a high
quality antifreeze coolant during summer to provide
proper corrosion protection and to raise the boiling point
of the coolant for protection against overheating. A 50 %
concentration is recommended. Refer to Recommended
Fluids and Genuine Parts for the proper coolant type.
When using the air conditioner in extremely heavy traffic
in hot weather especially when towing a trailer, addi-
tional engine cooling may be required. If this situation is
encountered, operate the transmission in a lower gear to
increase engine RPM, coolant flow and fan speed. When
stopped in heavy traffic, it may be necessary to shift into
N (Neutral) and depress the accelerator slightly for fast
idle operation to increase coolant flow and fan speed.
268 UNDERSTANDING YOUR INSTRUMENT PANEL

NTire Spinning........................321
NTread Wear Indicators..................322
NLife Of Tire.........................323
NReplacement Tires.....................323
NAlignment And Balance.................324
mTire Chains...........................325
mTire Rotation Recommendations............325
mTire Pressure Monitor System (TPMS)........326
NBase System Ð If Equipped..............329
NPremium System Ð If Equipped..........331
NGeneral Information...................336
mFuel Requirements......................336
N3.7/4.7L Engines (If Equipped)............336N5.7L Engines (If Equipped)...............337
NReformulated Gasoline.................337
NGasoline/Oxygenate Blends..............338
NMMT In Gasoline.....................338
NMaterials Added To Fuel................339
NFuel System Cautions..................339
NCarbon Monoxide Warnings..............340
mFlexible Fuel (4.7L Engine Only) Ð
If Equipped...........................340
NE-85 General Information................340
NEthanol Fuel (E-85)....................341
NFuel Requirements....................342
NSelection Of Engine Oil For Flexible Fuel
Vehicles (E-85) And Gasoline Vehicles.......343
STARTING AND OPERATING 273
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