2008 JEEP GRAND CHEROKEE automatic transmission

To Resume Speed
To resume a previously set speed, push the ªRESUME
ACCELº lever up and release. Resume can be used at any
speed above 25 mph (40 km/h).
To Vary The Speed Setting
When the speed control is ON, speed can be increased by
pushing up and holding ªRESUME ACCELº. Release the
lever when the desired speed is reached, and the new
speed will be set.
Tapping ªRESUME ACCELº once will result ina1mph
(2 km/h) speed increase. Each time the lever is tapped,
speed increases so that tapping the lever three times will
increase speed by 3 mph (5 km/h).
To decrease speed while speed control is ON, push down
and hold ªSET DECELº. Release the lever when the
desired speed is reached, and the new speed will be set.Tapping the ªSET DECELº button once will result in a 1
mph (2 km/h) speed decrease. Each time the button is
tapped, speed decreases.
NOTE:The Speed Control system has been designed to
shut down if multiple speed control switch functions are
operated simultaneously in order to ensure proper op-
eration. If this occurs, the system can be reactivated by
pushing the speed control switch ON/OFF button and
re-setting the desired vehicle SET speed.
To Accelerate For Passing
Depress the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
Using Speed Control On Hills
The automatic transmission may downshift on hills to
maintain the vehicle set speed.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 133
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19. Transmission Range Indicator
This display indicator shows the automatic transmission
gear selection.
20. Fuel Gauge
The pointer shows the level of fuel in the fuel tank when
the ignition switch is in the ON position.
21. 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 when
the 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, anelevated/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.
22. Front Fog Light Indicator LightÐ If Equipped
This light shows the front fog lights are ON.
23. Voltage Warning Light
This light monitors the electrical system voltage.
The light should turn on momentarily as the
engine is started. If the light stays on or turns on while
driving, it indicates a problem with the charging system.
Immediate service should be obtained.
24. Low Fuel Warning Light
When the fuel level reaches approximately 2.3 U.S.
Gallons (8.7 Liters) this light will come on and
remain on until fuel is added. The Low Fuel
UNDERSTANDING YOUR INSTRUMENT PANEL 181
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Auto Door Locks
When Y (YES) is selected, all of the doors will lock
automatically when the vehicle reaches a speed of 15
mph (24 km/h). To make your selection, press and
release the FUNCTION SELECT button until ªY (YES)º
or ªN (NO)º appears.
Auto Unlock On Exit
When Y (YES) is selected, all of the doors will unlock
when the vehicle is stopped and the transmission is in the
P (Park) or N (Neutral) position and the driver's door is
opened. To make your selection, press and release the
FUNCTION SELECT button until ªY (YES)º or ªN (NO)º
appears.
Remote Key Unlock
WhenDriver Door 1st Pressis selected, only the driver's
door will unlock on the first press of the remote keyless
entry unlock button. When Driver Door 1st Press is
selected, you must press of the remote keyless entryunlock button twice to unlock the passenger's doors.
WhenAll Doors 1st Pressis selected, all of the doors will
unlock on the first press of the remote keyless entry
unlock button. To make your selection, press and release
the FUNCTION SELECT button until ªDriver Door 1st
Pressº or ªAll Doors 1st Pressº appears.
Sound Horn with Lock
When Y (YES) is selected, a short horn sound will occur
when the remote keyless entry ªLockº button is pressed.
This feature may be selected with or without the flash
lights on lock/unlock feature. To make your selection,
press and release the FUNCTION SELECT button until
ªY (YES)º or ªN (NO)º appears.
Flash Lamps with Lock
When Y (YES) is selected, the front and rear turn signals
will flash when the doors are locked or unlocked with the
remote keyless entry transmitter. This feature may be
selected with or without the sound horn on lock feature
UNDERSTANDING YOUR INSTRUMENT PANEL 191
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STARTING AND OPERATING
CONTENTS
mStarting Procedures.....................242
NNormal Starting......................243
NExtremely Cold Weather (Below220ÉF Or
229ÉC).............................243
NIf Engine Fails To Start.................244
NAfter Starting........................245
mAutomatic Transmission..................245
NShift Lock Manual Override Ð If Equipped . . . 246
NBrake/Transmission Interlock System.......247N5±Speed Automatic Transmission..........247
NGear Ranges.........................248
NRocking The Vehicle...................249
mAutoStick............................250
NAutoStick Operation...................251
NAutoStick General Information............252
mParking Brake.........................253
mAnti-Lock Brake System..................254
mPower Steering........................258
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If Engine Fails to Start
WARNING!
²Never pour fuel or other flammable liquids into
the throttle body air inlet opening in an attempt to
start the vehicle. This could result in a flash fire
causing serious personal injury.
²Do not attempt to push or tow your vehicle to get
it started. Vehicles equipped with an automatic
transmission cannot be started this way. Un-
burned fuel could enter the catalytic converter and
once the engine has started, ignite and damage the
converter and vehicle. If the vehicle has a dis-
charged battery, booster cables may be used to
obtain a start from a booster battery or the battery
in another vehicle. This type of start can be
dangerous if done improperly. Refer to Section 6
of this manual for proper jump starting proce-
dures and follow them carefully.
If the engine fails to start after you have followed the
ªNormal Startingº or ªExtreme Cold Weatherº proce-
dures, it may be flooded. To clear any excess fuel, push
the accelerator pedal all the way to the floor and hold it.
Then, turn the ignition switch to the START position and
release it as soon as the starter engages. The starter motor
will disengage automatically in 10 seconds. Once this
occurs, release the accelerator pedal, turn the ignition
switch to the LOCK position, wait 10 to 15 seconds, then
repeat the normal starting procedure.
CAUTION!
To prevent damage to the starter, wait 10 to 15
seconds before trying again.
244 STARTING AND OPERATING

After Starting
The idle speed is controlled automatically and it will
decrease as the engine warms up.
AUTOMATIC TRANSMISSION
CAUTION!
Damage to the transmission may occur if the follow-
ing precautions are not observed:
²Shift into P (Park) only after the vehicle has come
to a complete stop.
²Shift into or out of R (Reverse) only after the
vehicle has come to a complete stop and the engine
is at idle speed.
²Do not shift from R (Reverse), P (Park), or N
(Neutral) into any forward gear when the engine is
above idle speed.
²Before shifting into any gear, make sure your foot
is firmly on the brake pedal.
STARTING AND OPERATING 245
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5. Move the shift lever into the N (Neutral) position.
6. The vehicle may then be started in N (Neutral).
Have your vehicle inspected by your local authorized
dealer, if the shift lock manual override has been used.
Brake/Transmission Interlock System
This system prevents you from moving the gear shift out
of P (Park) and into any gear unless the brake pedal is
pressed. This system is active only while the ignition
switch is in the ON position. Always depress thebrake
pedal first,before moving the gear selector out of P
(Park).
5±Speed Automatic Transmission
The electronically controlled transmission provides a
precise shift schedule. The transmission electronics are
self-calibrating; therefore, the first few shifts on a new
vehicle, may be somewhat abrupt. This is a normal
condition, and precision shifts will develop within a few
hundred miles.
STARTING AND OPERATING 247
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WARNING!
Unintended movement of a vehicle could injure
those in and near the vehicle. As with all vehicles,
you should never exit a vehicle while the engine is
running. Before exiting a vehicle, you should apply
the park brake, shift the transmission into P (Park),
and remove the key from the ignition. Once the key
is removed from the ignition the transmission shift
lever is locked in the P (Park) position, securing the
vehicle against unwanted movement. Furthermore,
you should never leave children unattended inside a
vehicle.
R (Reverse)
Shift into this range only after the vehicle has come to a
complete stop.
N (Neutral)
No power is transmitted from the engine to the drive
axle. When the brakes are released, the vehicle can roll
freely. Do not engage in N (Neutral) position while
driving except to coast when the vehicle is in danger of
skidding (e.g., on icy roads).
D (Drive)
Shift into D (Drive) only when the vehicle is at a complete
stop and the brakes are firmly applied. The transmission
automatically upshifts through fifth gear. The D (Drive)
position provides optimum driving characteristics under
all normal operating conditions. For additional shifting
information, refer to ªAutostickº later in this section.
Rocking the Vehicle
If the vehicle becomes stuck in snow, sand, or mud, it can
often be moved by a rocking motion. Move the gear
selector rhythmically between D (Drive) and R (Reverse),
while applying slight pressure to the accelerator.
STARTING AND OPERATING 249
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