2010 JEEP GRAND CHEROKEE park assist

▫Fog Lights — If Equipped .............. 106
▫ Turn Signals ........................ 107
▫ Lane Change Assist ................... 108
▫ High/Low Beam Switch ............... 108
▫ Flash-To-Pass ....................... 108
▫ Headlight Time Delay ................. 108
▫ Interior Lights ...................... 108
▫ Front Map/Reading Lights ............. 108
 Windshield Wipers And Washers .......... 109
▫ Windshield Wiper Operation ............ 110
▫ Intermittent Wiper System .............. 110
▫ Windshield Washer Operation ............111
▫ Mist ............................. 112 ▫
Rain Sensing Wipers — If Equipped ....... 112
 Tilt/Telescoping Steering Column .......... 114
 Adjustable Pedals — If Equipped .......... 115
 Electronic Speed Control — If Equipped ..... 116
▫ To Activate ......................... 117
▫ To Set a Desired Speed ................ 118
▫ To Deactivate ....................... 118
▫ To Resume Speed .................... 118
▫ To Vary The Speed Setting .............. 118
▫ To Accelerate For Passing .............. 119
 Parksense Rear Park Assist — If Equipped . . . 119
▫ Parksense Sensors................... 120
▫ Parksense Warning Display ............ 120
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 77

Tapping the SET DECEL lever once will result ina1mph
(2 km/h) speed decrease. Each time the lever is tapped,
speed decreases.
To Accelerate for Passing
Press the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
Using Electronic Speed Control On Hills
The transmission may downshift on hills to maintain the
vehicle set speed.
NOTE:The Electronic 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 Electronic Speed
Control.
WARNING!
Electronic Speed Control can be dangerous where the
system cannot maintain a constant speed. Your ve-
hicle could go too fast for the conditions, and you
could lose control. An accident could be the result.
Do not use Electronic Speed Control in heavy traffic
or on roads that are winding, icy, snow-covered or
slippery.
PARKSENSE REAR PARK ASSIST — IF
EQUIPPED
ParkSense provides visible and audible indications of
the distance between the rear fascia and the detected
obstacle when backing up. Refer to the Warning Section
and Note Section for limitations of this system and
recommendations.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 119

NOTE:The Rear Park Assist system will MUTE the
radio, if on, when the system is sounding an audio tone.
Enable/Disable ParkSense
ParkSense can be enabled and disabled with a switch
located on the upper switch bank of the instrument
panel.
Press the switch once to turn ParkSense on,
push the switch a second time to turn Park-
Sense off.
When the switch is pressed to disable the system, the
instrument cluster will display the “PARK ASSIST DIS-
ABLED” message. Refer to “Electronic Vehicle Informa-
tion Center (EVIC)” in “Understanding Your Instrument
Panel” for further information. When the shift lever is
changed to REVERSE and the system is disabled, the
instrument cluster will actuate a single chime, once per
ignition cycle, and it will display the message. The ParkSense
switch LED will be ON when the system
is disabled or defective. The ParkSense switch LED will
be OFF when the system is enabled.Service ParkSense
When ParkSense is defective, the instrument cluster will
actuate a single chime, once per ignition cycle, and it will
display the “SERVICE PARK ASSIST SYSTEM” message.
Refer to “Electronic Vehicle Information Center (EVIC)”
in “Understanding Your Instrument Panel” for further
information. If “SERVICE PARK ASSIST SYSTEM” ap-
pears in the EVIC after making sure the rear fascia/
bumper is clean and free of snow, ice, mud, or other
debris, see your authorized dealer.
Cleaning ParkSense
Clean the ParkSense sensors with water, car wash soap
and a soft cloth. Do not use rough or hard cloths. Do not
scratch or poke the sensors. Otherwise, you could dam-
age the sensors.
122 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

System Usage Precautions
NOTE:
•Ensure that the rear bumper is free of dirt and debris
to keep ParkSenseoperating properly.
•Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense.
•When you turn ParkSense off, the instrument cluster
will display “PARK ASSIST DISABLED.” Further-
more, once you turn ParkSense off, it remains off
until you turn it on again, even if you cycle the ignition
key.
•When you move the shift lever to the REVERSE
position and ParkSense is turned off, the instrument
cluster will display “PARK ASSIST DISABLED” mes-
sage for as long as the vehicle is in REVERSE.
•ParkSense, when on, will MUTE the radio when it is
sounding a tone.
•If a ParkSense system malfunction occurs, a single
chime will sound once per ignition cycle. In addition,
the Electronic Vehicle Information Center (EVIC) will
display “SERVICE PARK ASSIST SYSTEM”. If this
occurs making sure the rear fascia/bumper is free
from snow, ice, mud, dirt and debris, see your autho-
rized dealer.
•Clean the ParkSense sensors regularly, taking care
not to scratch or damage them. The sensors must not
be covered with ice, snow, slush, mud, dirt, or debris.
Failure to do so can result in the system not working
properly. ParkSense might not detect an obstacle
behind the fascia/bumper, or it could provide a false
indication that an obstacle is behind the fascia/
bumper.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 123

•Objects must not be within 12 in (30 cm) from the rear
fascia/bumper while driving the vehicle. Failure to do
so can result in the system misinterpreting a close
object as a sensor problem, causing the “SERVICE
PARK ASSIST SYSTEM” message to be displayed in
the instrument cluster.
CAUTION!
•ParkSenseis only a parking aid and it is unable
to recognize every obstacle, including small ob-
stacles. Parking curbs might be temporarily de-
tected or not detected at all. Obstacles located
above or below the sensors will not be detected
when they are in close proximity.
•The vehicle must be driven slowly when using Park-
Sense to be able to stop in time when the obstacle is
detected. It is recommended that the driver looks over
his/her shoulder when using ParkSense.
WARNING!
•Drivers must be careful when backing up even
when using the ParkSense Rear Park Assist Sys-
tem. Always check carefully behind your vehicle,
look behind you, and be sure to check for pedes-
trians, animals, other vehicles, obstructions, and
blind spots before backing up. You are responsible
for safety and must continue to pay attention to
your surroundings. Failure to do so can result in
serious injury or death.
(Continued)
124 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING! (Continued)
•Before using the ParkSenseRear Park Assist
System, it is strongly recommended that the ball
mount and hitch ball assembly is disconnected
from the vehicle when the vehicle is not used for
towing. Failure to do so can result in injury or
damage to vehicles or obstacles because the hitch
ball will be much closer to the obstacle than the
rear fascia when the warning display turns on the
single flashing arc and sounds the continuous
tone. Also, the ParkSense sensors could detect
the ball mount and hitch ball assembly, depending
on its size and shape, giving a false indication that
an obstacle is behind the vehicle.
PARKVIEW REAR BACK UP CAMERA — IF
EQUIPPED
Your vehicle may be equipped with the ParkView Rear
Back Up Camera that allows you to see an on-screen
image of the rear of your vehicle whenever the shift lever
is put into REVERSE. The image will be displayed on the
Navigation/Multimedia radio display screen. The Park-
View camera is located on the rear liftgate.
WARNING!
Drivers must be careful when backing up even when
using the ParkView Rear Back Up Camera. Always
check carefully behind your vehicle, and be sure to
check for pedestrians, animals, other vehicles, ob-
structions, or blind spots before backing up. You are
responsible for the safety of your surroundings and
must continue to pay attention while backing up.
Failure to do so can result in serious injury or death.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 125

•WASHER FLUID LOW (with graphic)
•COOLANT LOW (with graphic)
•OIL CHANGE REQUIRED
•OIL CHANGE RESET
•CHECK GAUGES
•AUTO HIGH BEAMS ON
•AUTO HIGH BEAMS OFF
•PARK ASSIST DISABLED
•SERVICE SUSPENSION
•SERVICE PARK ASSIST SYSTEM
•TRANSMISSION OVER TEMP
•CHECK SHIFT PROCEDURE
•SERVICE 4WD SYSTEM
•4WD SYSTEM IN NEUTRAL
•LOW BRAKE FLUID LEVEL
•WARNING! LIMIT SPEED
•CHECK GASCAP
•ESP OFF
•IOD FUSE OUT
•HILL DESCENT CONTROL
•MEMORY #1 POSITIONS SET
•MEMORY #2 POSITIONS SET
•MEMORY SYSTEM DISABLED — SEATBELT BUCK-
LED (with graphic)
•MEMORY SYSTEM DISABLED — VEHICLE NOT IN
PARK
•DRIVER 1 MEMORY
4
UNDERSTANDING YOUR INSTRUMENT PANEL 171

▫Quadra-Trac II Operating Instructions/
Precautions – If Equipped .............. 253
▫ Shift Positions ...................... 255
▫ Shifting Procedures ................... 255
▫ Quadra-Drive II System – If Equipped .... 258
 On-Road Driving Tips .................. 258
 Off-Road Driving Tips .................. 259
▫ When To Use 4WD Low Range –
If Equipped ........................ 259
▫ Driving Through Water ................ 259
▫ Driving In Snow, Mud And Sand ......... 260
▫ Hill Climbing ....................... 261
▫ Traction Downhill .................... 262
▫ After Driving Off-Road ................ 262 
Power Steering ....................... 263
▫ Power Steering Fluid Check ............. 264
 Multi-Displacement System (MDS)
(If Equipped) – 5.7L Engine Only ........... 265
 Parking Brake ........................ 265
 Anti-Lock Brake System ................. 268
 Electronic Brake Control System ........... 270
▫ Anti-Lock Brake System (ABS) ........... 270
▫ Traction Control System (TCS) ........... 271
▫ Brake Assist System (BAS) .............. 271
▫ Electronic Roll Mitigation (ERM) ......... 272
▫ Electronic Stability Program (ESP) ........ 273
▫ Trailer Sway Control (TSC) ............. 278
236 STARTING AND OPERATING