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

INTRODUCTION
This is a specialized utility vehicle designed for both
on-road and off-road use. It can go places and perform
tasks for which conventional two-wheel drive vehicles
were not intended. However, on-road ride and handling
will have a different feel from what drivers experience
with other vehicles, so take time to become familiar with
your vehicle.
The two-wheel drive utility vehicle was designed for
on-road use only. It is not intended for off-road driving
or use in other severe conditions suited for a four-wheel
drive vehicle.
Before you start to drive this vehicle, read this manual. Be
sure you are familiar with all vehicle controls, particu-
larly those used for braking, steering and transmission
and transfer case shifting. Learn how your vehicle
handles on different road surfaces. Your driving skills
will improve with experience. When driving off-road orworking the vehicle, don't overload it or expect it to
overcome the laws of nature. Always observe federal,
state, provincial, and local laws wherever you drive.
As with other vehicles of this type, failure to operate this
vehicle correctly may result in loss of control or an
accident. Be sure to read ªOn-Road/Off-Road Driving
Tipsº in Section 5 of this manual.
This manual has been prepared with the assistance of
service and engineering specialists to acquaint you with
the operation and maintenance of your new vehicle. It is
supplemented by a Warranty Information Booklet and
various customer oriented documents. You are urged to
read these publications carefully. Following the instruc-
tions and recommendations in this manual will help
assure safe and enjoyable operation of your vehicle.
4 INTRODUCTION

Once the vehicle has started, the engine will run for 15
minutes. To cancel remote start, press the ªRemote Startº
button once.
The parking lamps will remain illuminated to indicate
that the vehicle has remote started and the engine is
running. The lamps will turn off when the ignition is
turned to RUN or the remote start is cancelled.To enter the vehicle while the engine is running during a
remote start, you must first unlock the vehicle using the
ªUnlockº button on the key fob. After the vehicle is
unlocked, you have 15 minutes to enter the vehicle, insert
the key into the ignition, and move it to the RUN
position. Otherwise, the engine will cancel remote start
and automatically turn off.
Remote start will also cancel if any of the following occur:
²If the engine stalls or RPM exceeds 2500
²Any engine warning lamps come on
²The hood is opened
²The hazard switch is pressed
²The transmission is moved out of P (Park).
²The brake pedal is pressed.
Remote Start Button
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 27
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²Engine control status (including engine speed)
²Transmission gear selection
²Cruise control status
²Traction/stability control status
²Tire pressure monitoring system status
Child Restraint
Everyone in your vehicle needs to be buckled up all the
time Ð babies and children, too. Every state in the United
States and all Canadian provinces require that small
children ride in proper restraint systems. This is the law,
and you can be prosecuted for ignoring it.
Children 12 years and under should ride properly buck-
led up in a rear seat, if available. According to crash
statistics, children are safer when properly restrained in
the rear seats rather than in the front.There are different sizes and types of restraints for
children from newborn size to the child almost large
enough for an adult safety belt. Always check the child
seat Owner's Manual to ensure you have the right seat
for your child. Use the restraint that is correct for your
child:
WARNING!
In a collision, an unrestrained child, even a tiny baby,
can become a missile inside the vehicle. The force
required to hold even an infant on your lap can
become so great that you could not hold the child, no
matter how strong you are. The child and others
could be badly injured. Any child riding in your
vehicle should be in a proper restraint for the child's
size.
58 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

NOTE:
²The rain sensing feature will not operate when the
wiper switch is in the LOW or HIGH speed position.
²The rain sensing feature may not function properly
when ice, or dried salt water is present on the wind-
shield.
²Use of Rain-Xtor products containing wax or silicone
may reduce rain sensor performance.
²A customer programmable feature in the Electronic
Vehicle Information Center (EVIC) allows the Rain
Sense feature to be turned off. Refer to ªElectronic
Vehicle Information Center (EVIC) Ð Customer Pro-
grammable Featuresº in Section 4 of this manual.The rain sensing system has protection features for the
wiper blades and arms, and will not operate under the
following conditions:
²Low Ambient TemperatureÐ When the ignition is
first turned ON, the rain sensing system will not
operate until the wiper switch is moved, vehicle speed
is greater than 0 mph (0 km/h), or the outside tem-
perature is greater than 32ÉF (0ÉC).
²Transmission in N (Neutral) PositionÐ When the
ignition is ON, and the transmission is in the N
(Neutral) position, the rain sensing system will not
operate until the wiper switch is moved, vehicle speed
is greater than 5 mph (8 km/h), or the shift lever is
moved out of the N (Neutral) position.
132 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Using Speed Control On Hills
The automatic transmission may downshift on hills to
maintain the vehicle set speed.
NOTE:The speed control system maintains speed up
and down hills. A slight speed change on moderate hills
is normal.
On steep hills a greater speed loss or gain may occur so
it may be preferable to drive without speed control.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that includes ABS (Anti-Lock Brake
System), TCS (Traction Control System), BAS (Brake
Assist System), ERM (Electronic Roll Mitigation), and
ESP (Electronic Stability Program). All five of these
systems work together to enhance vehicle stability and
control in various driving conditions.Also, your vehicle is equipped with TSC (Trailer Sway
Control) and, if it has 4WD with the NV245 two-speed
transfer case, HSA (Hill Start Assist) and HDC (Hill
Descent Control).
ABS (Anti-Lock Brake System)
This system aids the driver in maintaining vehicle control
under adverse braking conditions. The system controls
hydraulic brake pressure to prevent wheel lock-up and
help avoid skidding on slippery surfaces during braking.
Refer to ªAnti-Lock Brake Systemº in Section 5 of this
manual for more information about ABS.
138 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

²Gear selection matches vehicle uphill direction (i.e.,
vehicle facing uphill is in forward gear; vehicle back-
ing uphill is in R (Reverse) gear).
HSA will work in R (Reverse) and all forward gears when
the activation criteria have been met. The system will not
activate if the vehicle is placed in N (Neutral) or P (Park).
WARNING!
There may be situations on minor hills (i.e., less than
8%), with a loaded vehicle, or while pulling a trailer,
when the system will not activate and slight rolling
may occur. This could cause a collision with another
vehicle or object. Always remember the driver is
responsible for braking the vehicle.
Towing with HSA
HSA will provide assistance when starting on a grade
when pulling a trailer.
WARNING!
²If you use a trailer brake controller with your
trailer, your trailer brakes may be activated and
deactivated with the brake switch. If so, when the
brake pedal is released there may not be enough
brake pressure to hold the vehicle and trailer on a
hill and this could cause a collision with another
vehicle or object behind you. In order to avoid
rolling down the hill while resuming accelera-
tion, manually activate the trailer brake prior to
releasing the brake pedal. Always remember the
driver is responsible for braking the vehicle.
²HSA is not a parking brake. If you stop the
vehicle on a hill without putting the transmission
in P (Park) and using the parking brake, it will
roll down the hill and could cause a collision with
another vehicle or object. Always remember to
use the parking brake while parking on a hill,
and that the driver is responsible for braking the
vehicle.
148 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Programming HomeLinkT
Before You Begin
If you have not trained any of the HomeLinktbuttons,
erase all channels before you begin training.
To do this, press and hold the two outside buttons for 20
seconds. The EVIC will display ªCLEARING CHAN-
NELS.º Release the buttons when the EVIC message
states ªCHANNELS CLEARED.º
It is recommended that a new battery be placed in the
hand-held transmitter of the device being programmed
to HomeLinktfor more efficient training and accurate
transmission of the radio-frequency signal.
Your vehicle should be parked outside of the garage
while training.
1. Turn the ignition switch to the ON/RUN position.2. Place the hand-held transmitter 1±3 inches (3±8 cm)
from the HomeLinktbuttons while keeping the EVIC
display in view.
For optimal training, point the battery end of the hand-
held transmitter away from the HomeLinkt.
3. Simultaneously press and hold both the chosen
HomeLinktbutton and the hand-held transmitter button
until the EVIC display changes from ªCHANNEL #
TRAININGº to ªCHANNEL # TRAINED.º
Then release both the HomeLinktand hand-held trans-
mitter buttons.
If the EVIC display states ªDID NOT TRAINº repeat Step
3. If the signal is too weak, replace the battery in the
original hand-held transmitter.
It may take up to 30 seconds, or longer in rare cases. The
garage door may open & close while you train.
160 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

6. Firmly press and release the ªlearnº or ªtrainingº
button. The name and color of the button may vary by
manufacturer.
NOTE:There are 30 seconds in which to initiate the next
step after the ªLearnº button has been pressed.
7. Return to the vehicle and press the programmed
HomeLinktbutton twice (holding the button for 2 sec-
onds each time). If the device is plugged in and activates,
programming is complete.
If the device does not activate, press the button a third
time (for 2 seconds) to complete the training.
If you are have any problems, or require assistance,
please call toll-free 1±800±355±3515 or, on the Internet at
www.HomeLink.com for information or assistance.
To program the remaining two HomeLinktbuttons,
repeat each step for each remaining button. DO NOT
erase the channels.Gate Operator/Canadian Programming
Canadian radio-frequency laws require transmitter sig-
nals to ªtime-outº (or quit) after several seconds of
transmission ± which may not be long enough for
HomeLinktto pick up the signal during programming.
Similar to this Canadian law, some U.S. gate operators are
designed to ªtime-outº in the same manner.
It may be helpful to unplug the device during the cycling
process to prevent possible overheating of the garage
door or gate motor.
If you are having difficulties programming a garage door
opener or a gate operator, replace ªProgramming
HomeLinkº Step 3 with the following:
3. Continue to press and hold the HomeLinktbutton
while you press and release - every two seconds
(ªcycleº) your hand-held transmitter until HomeLinkt
has successfully accepted the frequency signal. The
EVIC display will change from ªCHANNEL # TRAIN-
INGº to ªCHANNEL # TRAINED.º
162 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

INSTRUMENT CLUSTER DESCRIPTION
1. Speedometer
Indicates vehicle speed.
2. Brake Warning Light
The BRAKE warning light will come on when
the ignition is first turned on, and stay on
briefly as a bulb check. If the bulb does not
come on during starting, have the bulb re-
paired promptly. If the light stays on longer, it may be an
indication that the parking brake has not been released.
If the light remains on when the parking brake is off, it
indicates a possible brake hydraulic system malfunction
or low fluid level. In this case, the light will remain on
until the cause is corrected. If a brake malfunction is
indicated, immediate repair is necessary and continued
operation of the vehicle in this condition is dangerous.3. Turn Signal Indicator Light
The arrow will flash with the exterior turn signal
when the turn signal lever is operated.
If the vehicle electronics sense that the vehicle has
traveled about one mile with the turn signals on, a chime
will sound to alert you to turn the signals off. If either
indicator flashes at a rapid rate, check for a defective
outside light bulb.
4. High Beam Indicator Light
Indicates that headlights are on high beam.
5. Malfunction Indicator Light
This light is part of an onboard diagnostic system
called OBD II that monitors engine and auto-
matic transmission control systems. The light will
illuminate when the key is in the ON position
188 UNDERSTANDING YOUR INSTRUMENT PANEL

U.S. federal regulations require that upon transfer of
vehicle ownership, the seller certify to the purchaser the
correct mileage that the vehicle has been driven. There-
fore, if the odometer reading is changed during repair or
replacement, be sure to keep a record of the reading
before and after the service so that the correct mileage can
be determined.
21. Transmission Range Indicator
This display indicator shows the automatic transmission
gear selection.
22. Fuel Gauge
The pointer shows the level of fuel in the fuel tank when
the ignition switch is in the ON position.
23. Electronic Throttle Control (ETC) Warning Light
This light informs you of a problem with the
Electronic Throttle Control system. If a problem
is detected the light will come on while the
engine is running. Cycle the ignition key whenthe vehicle has completely stopped and the gear selector
is placed in the P (Park) position. The light should turn
off. If the light remains lit with the engine running your
vehicle will usually be drivable, however, see your dealer
for service as soon as possible. If the light is flashing
when the engine is running, immediate service is re-
quired and you may experience reduced performance, an
elevated/rough idle or engine stall and your vehicle may
require towing. The light will come on when the ignition
is first turned on and remain on briefly as a bulb check.
If the light does not come on during starting, have the
system checked by an authorized dealer.
24. Front Fog Light Indicator LightÐ If Equipped
This light shows the front fog lights are ON.
25. Voltage Warning Light
This light monitors the electrical system voltage.
The light should turn on momentarily as the
UNDERSTANDING YOUR INSTRUMENT PANEL 195
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