2014 JEEP GRAND CHEROKEE service

•Do not remove any screws from the sensor. Doing so
could cause an ACC system malfunction or failure and
require a sensor realignment.
• If the sensor or front end of the vehicle is damaged due
to a collision, see your authorized dealer for service.
• Do not attach or install any accessories near the sensor,
including transparent material or aftermarket grilles.
Doing so could cause an ACC system failure or
malfunction.
When the condition that deactivated the system is no
longer present, the system will return to the “Adaptive
Cruise Control Off” state and will resume function by
simply reactivating it. NOTE:
•
If the “ACC/FCW Unavailable Wipe Front Radar
Sensor” message occurs frequently (e.g. more than
once on every trip) without any snow, rain, mud, or
other obstruction, have the radar sensor realigned at
your authorized dealer.
• Installing a snow plow, front-end protector, an after-
market grille or modifying the grille is not recom-
mended. Doing so may block the sensor and inhibit
ACC/FCW operation.
“Clean Front Windshield” Warning
The “ACC/FCW Limited Functionality Clean Front
Windshield” warning will display and also a chime will
indicate when conditions temporarily limit system per-
formance. This most often occurs at times of poor visibil-
ity, such as in snow or heavy rain and fog. The ACC
system may also become temporarily blinded due to
204 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

obstructions, such as mud, dirt, or ice on windshield and
fog on the inside of glass. In these cases, the EVIC will
display “ACC/FCW Limited Functionality Clean Front
Windshield” and the system will have degraded perfor-
mance.
The “ACC/FCW Limited Functionality Clean Front
Windshield” message can sometimes be displayed while
driving in adverse weather conditions. The ACC/FCW
system will recover after the vehicle has left these areas.
Under rare conditions, when the camera is not tracking
any vehicles or objects in its path this warning may
temporarily occur.
If weather conditions are not a factor, the driver should
examine the windshield and the camera located on the
back side of the inside rear view mirror. They may
require cleaning or removal of an obstruction.When the condition that created limited functionality is
no longer present, the system will return to full function-
ality.
NOTE:
If the “ACC/FCW Limited Functionality Clean
Front Windshield” message occurs frequently (e.g. more
than once on every trip) without any snow, rain, mud, or
other obstruction, have the windshield and forward
facing camera inspected at your authorized dealer.
Service ACC/FCW Warning
If the system turns off, and the EVIC displays “ACC/
FCW Unavailable Service Required”or “Cruise/FCW
Unavailable Service Required”, there may be an internal
system fault or a temporary malfunction that limits ACC
functionality. Although the vehicle is still drivable under
normal conditions, ACC will be temporarily unavailable.
If this occurs, try activating ACC again later, following a
key cycle. If the problem persists, see your authorized
dealer.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 205

Enabling And Disabling ParkSense®
ParkSense® can be enabled and disabled with the
ParkSense® switch.
When the ParkSense® switch is pressed to dis-
able the system, the instrument cluster will dis-
play the “PARKSENSE OFF” message for ap-
proximately five seconds. Refer to “Electronic
Vehicle Information Center (EVIC)” in “Understanding
Your Instrument Panel” for further information. When the
shift lever/gear selector is moved to REVERSE and the
system is disabled, the EVIC will display the “PARKSENSE
OFF” message for as long as the vehicle is in REVERSE.
The ParkSense® switch LED will be ON when ParkSense®
is disabled or requires service. The ParkSense® switch LED
will be OFF when the system is enabled. If the ParkSense®
switch is pressed, and the system requires service, the
ParkSense® switch LED will blink momentarily, and then
the LED will be ON.
Service The ParkSense® Rear Park Assist
System
During vehicle start up, when the ParkSense® Rear Park
Assist System has detected a faulted condition, the
instrument cluster will actuate a single chime, once per
ignition cycle, and it will display the “PARKSENSE
UNAVAILABLE WIPE REAR SENSORS” or the
“PARKSENSE UNAVAILABLE SERVICE REQUIRED”
message. Refer to “Electronic Vehicle Information Center
(EVIC). When the shift lever/gear selector is moved to
REVERSE and the system has detected a faulted condi-
tion, the EVIC will display the PARKSENSE UNAVAIL-
ABLE WIPE REAR SENSORS orPARKSENSE UN-
AVAILABLE SERVICE REQUIRED message for as long
as the vehicle is in REVERSE. Under this condition,
ParkSense® will not operate.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 219

If “PARKSENSE UNAVAILABLE WIPE REAR SEN-
SORS” appears in the Electronic Vehicle Information
Center (EVIC) make sure the outer surface and the
underside of the rear fascia/bumper is clean and clear of
snow, ice, mud, dirt or other obstruction and then cycle
the ignition. If the message continues to appear, see an
authorized dealer.
If “PARKSENSE UNAVAILABLE SERVICE REQUIRED”
appears in the EVIC, see an authorized 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.
ParkSense® System Usage Precautions
NOTE:
•Ensure that the rear bumper is free of snow, ice, mud,
dirt and debris to keep the ParkSense® system oper-
ating properly.
• Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense®.
• When you turn ParkSense® OFF, the instrument clus-
ter will display “PARKSENSE 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 EVIC will
display “PARKSENSE OFF” message for as long as the
vehicle is in REVERSE.
220 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

•ParkSense®, when on, will reduce the volume of 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.
• Use the ParkSense® switch to turn the ParkSense®
system OFF if objects such as bicycle carriers, trailer
hitches, etc. are placed within 12 in (30 cm) from the
rear fascia/bumper. Failure to do so can result in the
system misinterpreting a close object as a sensor
problem, causing the “PARKSENSE UNAVAILABLE
SERVICE REQUIRED” message to be displayed in the
EVIC. •
ParkSense® should be disabled when the liftgate is in
the open position and the vehicle is in REVERSE. An
open liftgate could provide a false indication that an
obstacle is behind the vehicle.
CAUTION!
• ParkSense® is only a parking aid and it is unable to
recognize every obstacle, including small obstacles.
Parking curbs might be temporarily detected 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
ParkSense® in order to be able to stop in time
when an obstacle is detected. It is recommended
that the driver looks over his/her shoulder when
using ParkSense®.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 221

Front Park Assist Audible Alerts
ParkSense® will turn off the Front Park Assist audible
alert (chime) after approximately 3 seconds when an
obstacle has been detected, the vehicle is stationary, and
brake pedal is applied.
Adjustable Chime Volume Settings
Front and Rear chime volume settings can be selected
from the EVIC or Uconnect® System — if equipped.
If Uconnect® System is equipped, chime volume settings
will not be accessible from the EVIC.
The chime volume settings include LOW, MEDIUM, and
HIGH. The factory default volume setting is MEDIUM.
ParkSense® will retain its last known configuration state
through ignition cycles.Enabling And Disabling ParkSense®
ParkSense® can be enabled and disabled with the
ParkSense® switch.
When the ParkSense® switch is pressed to dis-
able the system, the instrument cluster will dis-
play the “PARKSENSE OFF” message for ap-
proximately five seconds. Refer to “Electronic
Vehicle Information Center (EVIC)” in “Understanding
Your Instrument Panel” for further information. When the
shift lever/gear selector is moved to REVERSE and the
system is disabled, the EVIC will display the “PARKSENSE
OFF” message for as long as the vehicle is in REVERSE.
The ParkSense® switch LED will be ON when ParkSense®
is disabled or requires service. The ParkSense® switch LED
will be OFF when the system is enabled. If the ParkSense®
switch is pressed, and the system requires service, the
ParkSense® switch LED will blink momentarily, and then
the LED will be ON.
228 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Service The ParkSense® Park Assist System
During vehicle start up, when the ParkSense® System
has detected a faulted condition, the instrument cluster
will actuate a single chime, once per ignition cycle, and it
will display thePARKSENSE UNAVAILABLE WIPE
REAR SENSORS, PARKSENSE UNAVAILABLE WIPE
FRONT SENSORS,orthePARKSENSE UNAVAIL-
ABLE SERVICE REQUIRED message for five seconds.
When the shift lever is moved to Reverse and the system
has detected a faulted condition, the EVIC will display a
PARKSENSE UNAVAILABLE WIPE REAR SENSORS ,
PARKSENSE UNAVAILABLE WIPE FRONT SENSORS 
or PARKSENSE UNAVAILABLE SERVICE REQUIRED
pop up message for five seconds. After five seconds, a car
graphic will be displayed with UNAVAILABLEat ei-
ther the front or rear sensor location depending on where
the fault is detected. The system will continue to provide
arc alerts for the side that is functioning properly. These arc alerts will interrupt the
PARKSENSE UNAVAIL-
ABLE WIPE REAR SENSORS, PARKSENSE UNAVAIL-
ABLE WIPE FRONT SENSORS,orPARKSENSE UN-
AVAILABLE SERVICE REQUIRED messages if an object
is detected within the five second pop-up duration. The
car graphic will remain displayed for as long as the
vehicle is in REVERSE. Refer to “Electronic Vehicle
Information Center (EVIC)” in “Understanding Your
Instrument Panel” for further information.
If PARKSENSE UNAVAILABLE WIPE REAR SENSORS
or PARKSENSE UNAVAILABLE WIPE FRONT SEN-
SORS appears in the Electronic Vehicle Information
Center (EVIC) make sure the outer surface and the
underside of the rear fascia/bumper and/or front fascia/
bumper is clean and clear of snow, ice, mud, dirt or other
obstruction and then cycle the ignition. If the message
continues to appear see an authorized dealer.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 229

If thePARKSENSE UNAVAILABLE SERVICE RE-
QUIRED message appears in the EVIC, 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.
ParkSense® System Usage Precautions
NOTE:
• Ensure that the front and rear bumper are free of snow,
ice, mud, dirt and debris to keep the ParkSense®
system operating properly.
• Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense®. •
When you turn ParkSense® off, the instrument cluster
will display “PARKSENSE 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 “PARKSENSE OFF” for as long as
the vehicle is in REVERSE.
• ParkSense®, when on, will reduce the volume of 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 or in front of the fascia/bumper, or it
could provide a false indication that an obstacle is
behind or in front of the fascia/bumper.
230 UNDERSTANDING THE FEATURES OF YOUR VEHICLE