2010 JEEP LIBERTY sensor

▫To Resume Speed .................... 162
▫ To Vary The Speed Setting .............. 162
▫ To Accelerate For Passing .............. 163
 Parksense Rear Park Assist — If Equipped . . . 163
▫ Parksense Sensors................... 164
▫ Parksense Warning Display ............ 164
▫ Parksense Display................... 165
▫ Enabling And Disabling Parksense ....... 169
▫ Service The Parksense Rear Park Assist
System ............................ 169
▫ Cleaning The Parksense System......... 170
▫ Parksense System Usage Precautions ...... 170
 Garage Door Opener — If Equipped ........ 173▫
Programming HomeLink .............. 174
▫ Gate Operator/Canadian Programming .... 177
▫ Using HomeLink ................... 178
▫
Reprogramming A Single HomeLink Button. . 178
▫ Security ........................... 178
▫ Troubleshooting Tips .................. 179
▫ General Information .................. 179
 Power Sunroof — If Equipped ............ 180
▫ Opening Sunroof — Express ............ 181
▫ Opening Sunroof — Manual Mode ........ 181
▫ Closing Sunroof — Express ............. 181
▫ Closing Sunroof — Manual Mode ........ 181
▫ Pinch Protect Feature ................. 181
92 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ParkSensewill remember the last system state (enabled
or disabled) from the last ignition cycle when the ignition
is changed to the RUN/ON position.
ParkSense can be active only when the shift lever is in
REVERSE. If ParkSense is enabled at this shift lever
position, the system will be active until the vehicle speed
is increased to approximately 11 mph (18 km/h) or
above. The system will be active again if the vehicle
speed is decreased to speeds less than approximately
10 mph (16 km/h).
ParkSense Sensors
The four ParkSense sensors, located in the rear fascia/
bumper, monitor the area behind the vehicle that is
within the sensors’ field of view. The sensors can detect obstacles from approximately
12 in (30 cm) up to 79 in (200 cm) from the rear
fascia/bumper in the horizontal direction, depending on
the location, type and orientation of the obstacle.
ParkSense
Warning Display
The ParkSense Warning screen will only be displayed if
Sound and Display is selected from the Customer-
Programmable Features section of the Electronic Vehicle
Information Center (EVIC). Refer to “Personal Settings
(Customer-Programmable Features)” under “Electronic
Vehicle Information Center (EVIC)” in Section 4.
164 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

If “SERVICE PARK ASSIST SYSTEM” appears in the
Electronic Vehicle Information Center (EVIC) after mak-
ing sure the rear fascia/bumper is clean and clear of
snow, ice, mud, dirt or other obstruction, see your
authorized dealer.
The ParkSensesystem uses four sensors located in the
rear bumper fascia to scan for obstacles up to 79 in
(200 cm) away from the rear bumper fascia. The warning
display located above in the Instrument Cluster’s EVIC
provides both visible and audible warnings to indicate
the range of the object.
Cleaning the ParkSense System
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.
ParkSense System Usage Precautions
NOTE:
•Ensure that the rear bumper is free of snow, ice, mud,
dirt and debris to keep the ParkSense system operat-
ing 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.
170 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

•ParkSense, when on, will MUTE the radio when it is
sounding a tone.
•If a ParkSensesystem 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” and the
LED in the ParkSense switch will illuminate. If this
occurs after making sure the rear fascia/bumper is
clean and clear of snow, ice, mud, dirt, or other
obstruction, see your authorized dealer for service.
•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. The ParkSense system might not detect an
obstacle behind the fascia/bumper, or it could provide
a false indication that an obstacle is behind the fascia/
bumper.
•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!
•ParkSense is 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.
(Continued)
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 171

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 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.
GARAGE DOOR OPENER — IF EQUIPPED
HomeLink replaces up to three remote controls (hand-
held transmitters) that operate devices such as garage door openers, motorized gates, lighting or home security
systems. The HomeLink
unit operates off your vehicle’s
battery.
The HomeLink buttons that are located in the headliner
or sun visor designate the three different HomeLink 
channels.
HomeLink Buttons
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 173

maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
of reasons, including the installation of replacement or
alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check the
TPMS malfunction telltale after replacing one or moretires or wheels on your vehicle, to ensure that the
replacement or alternate tires and wheels allow the TPMS
to continue to function properly.
CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system opera-
tion or sensor damage may result when using re-
placement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage. Do not use tire sealant from a can, or
balance beads if your vehicle is equipped with a
TPMS, as damage to the sensors may result.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 209

2. Press the MENU button until the Personal Settings
(Customer-Programmable Features) menu displays in the
EVIC.
3. Press the SCROLL button until “Calibrate Compass”
displays in the EVIC.
4. Press and release the FUNCTION SELECT button to
start the calibration. The “CAL” indicator will display in
the EVIC.
5. Complete one or more 360–degree turns (in an area
free from large metal or metallic objects) until the “CAL”
indicator turns off. The compass will now function
normally.
Compass Variance
Compass Variance is the difference between Magnetic
North and Geographic North. To compensate for the
differences, the variance should be set for the zone where
the vehicle is driven, per the zone map. Once properlyset, the compass will automatically compensate for the
differences and provide the most accurate compass head-
ing.
NOTE:
Magnetic materials should be kept away from
the top of the right rear quarter window. This is where
the compass sensor is located.
Compass Variance Map
230 UNDERSTANDING YOUR INSTRUMENT PANEL

2. Press the “Hill Descent” button. The “Hill Descent
Control Indicator Light” in the instrument cluster will
turn on solid.
NOTE:If the transfer case is not in 4WD LOW range,
the “Hill Descent Control Indicator Light” will flash for
five seconds and HDC will not be enabled.
Disabling HDC
1. Press the “Hill Descent” button or shift the transfer
case out of 4WD LOW range. The “Hill Descent Control
Indicator” light in the instrument cluster will turn off.
Electronic Stability Control (ESC)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESC cor-
rects for over-steering and under-steering the vehicle by
applying the brake of the appropriate wheel. Engine
power may also be reduced to help the vehicle maintain
the desired path. The ESC uses sensors in the vehicle to determine the path
that the driver intends to steer the vehicle and compares
it to the actual path of the vehicle. When the actual path
does not match the intended path, the ESC applies the
brake of the appropriate wheel to assist in counteracting
the condition of over-steer or under-steer.
•Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
•Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
ESC Off Indicator Light
The “ESC Off Indicator Light” (located in the
instrument cluster) starts to flash as soon as the
tires lose traction and the ESC system becomes
active. The “ESC Off Indicator Light” also
flashes when TCS is active. If the “ESC Off Indicator
Light” begins to flash during acceleration, ease up on the
5
STARTING AND OPERATING 339