2015 JEEP GRAND CHEROKEE Owners Manual

FCW Limited Warning
If the system turns off, and the DID displays “ACC/FCW
Limited Functionality” or “ACC/FCW Limited Function-
ality Clean Front Windshield” momentarily, there may be
a condition that limits FCW functionality. Although the
vehicle is still drivable under normal conditions, the
active braking may not be fully available. Once the
condition that limited the system performance is no
longer present, the system will return to its full perfor-
mance state. If the problem persists, see your authorized
dealer.
Service FCW Warning
If the system turns off, and the DID displays:
•ACC/FCW Unavailable Service Required
•Cruise/FCW Unavailable Service Required
This indicates there is an internal system fault. Although
the vehicle is still drivable under normal conditions, have
the system checked by an authorized dealer.
PARKSENSE® REAR 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/gear
selector is in REVERSE. If ParkSense® is enabled at this
shift lever/gear selector position, the system will remain
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 223

active until the vehicle speed is increased to approxi-
mately 7 mph (11 km/h) or above. When in REVERSE
and above the system’s operating speed, a warning will
appear within the Driver Information Display (DID)
indicating the vehicle speed is too fast. The system will
become active again if the vehicle speed is decreased to
speeds less than approximately 6 mph (9 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 -
Programmable Features section of the Uconnect® Sys-
tem. Refer to#Uconnect® Settings” in “Understanding
Your Instrument Panel” for further information.
The ParkSense® Warning screen is located within the
DID. It provides visual warnings to indicate the distance
between the rear fascia/bumper and the detected ob-
stacle. Refer to “Driver Information Display (DID)” for
further information.
224 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ParkSense® Display
When the vehicle is in REVERSE, the DID will display the
park assist ready system status.
The system will indicate a detected obstacle by showing
a single arc in the left and/or right rear regions based on
the obstacle’s distance and location relative to the vehicle.
If an obstacle is detected in the left and/or right rear
region, the display will show a single arc in the left
and/or right rear region and the system will produce a
tone. As the vehicle moves closer to the obstacle, the
display will show the single arc moving closer to the
vehicle and the tone will change from a single 1/2 second
tone to slow, to fast, to continuous.
Park Assist Ready
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Single 1/2 Second ToneSlow Tone
226 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Fast ToneContinuous Tone
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The vehicle is close to the obstacle when the warning
display shows one flashing arc and sounds a continuous
tone. The following chart shows the warning alert opera-
tion when the system is detecting an obstacle:
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
NoneSingle 1/2
Second Tone
SlowFastContinuous
ArcNone4th Solid3rd
Solid
2nd
Flashing
1st
Flashing
Radio Volume
Reduced
NoYesYesYesYes
NOTE:ParkSense® will reduce the volume of the radio,
if on, when the system is sounding an audio tone.
228 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Enabling And Disabling ParkSense®
ParkSense® can be enabled and disabled with the
ParkSense® switch.
When the ParkSense® switch is pressed to disable
the system, the instrument cluster will display the
“PARKSENSE OFF” message for approximately
five seconds. Refer to “Driver Information Dis-
play (DID)” in “Understanding Your Instrument Panel” for
further information. When the shift lever/gear selector is
moved to REVERSE and the system is disabled, the DID 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 “Driver Information Display (DID)” for
further information. When the shift lever/gear selector is
moved to REVERSE and the system has detected a
faulted condition, the DID will display the#PARKSENSE
UNAVAILABLE WIPE REAR SENSORS#or
#PARKSENSE UNAVAILABLE SERVICE REQUIRED#
message for as long as the vehicle is in REVERSE. Under
this condition, ParkSense® will not operate.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 229

If “PARKSENSE UNAVAILABLE WIPE REAR SEN-
SORS” appears in the Driver Information Display (DID)
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 DID, 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 DID will
display “PARKSENSE OFF” message for as long as the
vehicle is in REVERSE.
230 UNDERSTANDING THE FEATURES OF YOUR VEHICLE