2012 JEEP LIBERTY Owners Manual

Pressing the RES (+) button once will result ina1mph
(2 km/h) increase in set speed. Each subsequent tap of
the button results in an increase of 1 mph (2 km/h).
To decrease speed while the Electronic Speed Control is
set, push the SET (-) button. If the button is continually
held in the SET (-) position, the set speed will continue to
decrease until the button is released. Release the button
when the desired speed is reached, and the new set speed
will be established.
Pressing the SET (-) button once will result ina1mph
(2 km/h) decrease in set speed. Each subsequent tap of
the button results in a decrease of 1 mph (2 km/h).
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 and have an accident. Do not use
Electronic Speed Control in heavy traffic or on roads
that are winding, icy, snow-covered or slippery.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 175

PARKSENSEREAR PARK ASSIST — IF
EQUIPPED
The ParkSense Rear Park Assist system provides visual
and audible indications of the distance between the rear
fascia and a detected obstacle when backing up, e.g.
during a parking maneuver. Refer to ParkSense System
Usage Precautions for limitations of this system and
recommendations.
ParkSense will retain the last system state (enabled or
disabled) from the last ignition cycle when the ignition is
changed to the ON/RUN 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 remain active until the vehicle
speed is increased to approximately 11 mph (18 km/h) or
above. The system will become 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 orienta-
tion of the obstacle.
ParkSense Warning Display
The ParkSense Warning screen will only be displayed if
Sound and Display is selected from the Customer- Pro-
grammable Features section of the Electronic Vehicle
Information Center (EVIC). Refer to “Electronic Vehicle
Information Center (EVIC)/Personal Settings (Customer-
Programmable Features)” in “Understanding Your In-
strument Panel” for further information.
176 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

The ParkSenseWarning Display is located in the Instru-
ment cluster ’s EVIC display. It provides both visual and
audible warnings to indicate the distance between the
rear fascia/bumper and the detected obstacle.ParkSense Display
When the vehicle is in REVERSE, the warning display
will turn ON indicating the system status.
ParkSenseWarning Display
Park Assist ON
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 177

The system will indicate a detected obstacle by showing
three solid arcs and will produce a one-half second tone.
As the vehicle moves closer to the object the EVIC
display will show fewer arcs and the sound tone will
change from slow, to fast, to continuous.
Park Assist OffSlow Tone
178 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

The vehicle is close to the obstacle when the EVIC display
shows one flashing arc and sounds a continuous tone.
The following chart shows the warning alert operation
when the system is detecting an obstacle:
Fast ToneContinuous Tone
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 179

WARNING ALERTS
Rear Distance (in/cm) Greater than
79 in (200 cm) 79-39 in
(200-100 cm) 39-25 in
(100-65 cm) 25-12 in
(65-30 cm) Less than
12 in (30 cm)
Audible Alert Chime None
Single 1/2
Second Tone Slow
FastContinuous
Display Message Park Assist ON Warning Object DetectedWarning Object
Detected Warning Object
Detected Warning Object
Detected
Arcs None3 Solid
(Continuous) 3 Slow
Flashing 2 Slow
Flashing 1 Slow
Flashing
Radio Mute NoYes YesYesYes
NOTE: ParkSense will MUTE the radio, if on, when
the system is sounding an audio tone.
Enabling And Disabling ParkSense 
ParkSensecan be enabled and disabled with a switch
located in the switch bank of the instrument panel or
through the Customer-Programmable Features section of the EVIC. The available choices are: OFF, Sound Only, or
Sound and Display. Refer to “Electronic Vehicle Informa-
tion Center (EVIC)/Personal Settings (Customer-
Programmable Features)” in “Understanding Your In-
strument Panel” for further information.
180 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

When the ParkSenseswitch is pressed to
disable the system, the instrument cluster will
display the “PARK ASSIST OFF” message for
approximately five seconds. Refer to “Elec-
tronic Vehicle Information Center (EVIC)” in “Under-
standing Your Instrument Panel” for further information.
When the shift lever is moved to REVERSE and the
system is disabled, the EVIC will display the “PARK
ASSIST OFF” message for as long as the vehicle is in
REVERSE.
The ParkSense switch LED will be ON when
ParkSense is disabled or defective. The ParkSense 
switch LED will be OFF when the system is enabled.
Service The ParkSense Rear Park Assist System
When the ParkSenseRear Park Assist System is mal-
functioning, 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 “Un-
derstanding Your Instrument Panel” for further informa-
tion. When the shift lever is moved to REVERSE and the
system has detected a faulted condition, the EVIC will
display the “SERVICE PARK ASSIST SYSTEM” message
for as long as the vehicle is in REVERSE. Under this
condition, ParkSense
will not operate.
If “SERVICE PARK ASSIST SYSTEM” appears in the
EVIC make sure the rear fascia/bumper is clean and clear
of snow, ice, mud, dirt or other obstruction and then cycle
the ignition. If the message appears again, see an autho-
rized dealer.
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.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 181

ParkSenseSystem 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 OFF.” Furthermore, 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 OFF” message for
as long as the vehicle is in REVERSE.
•ParkSense, when on, will MUTE the radio when it is
sounding a tone.
•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 such as bicycle carriers, trailer hitches, etc.,
must not be placed 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 EVIC.
182 UNDERSTANDING THE FEATURES OF YOUR VEHICLE