2015 JEEP GRAND CHEROKEE service

General Information
This vehicle has systems that operate on radio frequency
that comply with Part 15 of the Federal Communications
Commission (FCC) rules and with Industry Canada
Standards RSS- GEN/210/220/310.
Operation is subject to the following two conditions:
1. The device may not cause harmful interference.
2. The device must accept any interference received,
including interference that may cause undesired op-
eration of the device.
Changes or modifications to any of these systems by
other than an authorized service facility could void
authorization to use this equipment.
Normal (Fixed Speed) Electronic Speed Control
Mode
In addition to Adaptive Cruise Control mode, a Normal
(Fixed Speed) Electronic Speed Control mode is available
for cruising at fixed speeds. The Normal (Fixed Speed)
Electronic Speed Control mode is designed to maintain a
set cruising speed without requiring the driver to operate
the accelerator. Electronic Speed Control can only be
operated if the vehicle speed is above 20 mph (32 km/h).
To change between the different control modes, push the
ADAPTIVE CRUISE CONTROL (ACC) ON/OFF button
which turns the ACC and the NORMAL (Fixed Speed)
ELECTRONIC SPEED CONTROL OFF. Pushing of the
NORMAL (Fixed Speed) ELECTRONIC SPEED CON-
TROL ON/OFF button will result in turning ON (chang-
ing to) the Normal (Fixed Speed) Electronic Speed Con-
trol mode.
210 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

NOTE:
•The system will retain the last setting selected by the
driver after ignition shut down.
•FCW may not react to irrelevant objects such as
overhead objects, ground reflections, objects not in the
path of the car, stationary objects that are far away,
oncoming traffic, or leading vehicles with the same or
higher rate of speed.
•FCW will be disabled like ACC, with the unavailable
screens.
FCW Limited Warning
If the DID displays “ACC/FCW Limited Functionality”
or “ACC/FCW Limited Functionality Clean Front Wind-
shield” momentarily, there may be a condition that limits
FCW functionality. Although the vehicle is still drivable
under normal conditions, the active braking may not befully available. Once the condition that limited the sys-
tem performance is no longer present, the system will
return to its full performance state. If the problem per-
sists, 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.
218 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Adjustable Chime Volume Settings
Rear chime volume settings can be selected from the
Customer-Programmable Features section of the
Uconnect® System, refer to “Uconnect Settings” in “Un-
derstanding Your Instrument Panel” for further informa-
tion.
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 pushed to
disable the system, the instrument cluster will
display the “PARKSENSE OFF” message for
approximately five seconds. Refer to “DriverInformation Display (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 pushed, 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
224 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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 thePARKSENSE
UNAVAILABLE WIPE REAR SENSORSor
PARKSENSE UNAVAILABLE SERVICE REQUIRED
message for as long as the vehicle is in REVERSE. Under
this condition, ParkSense® will not operate.
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.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 225

•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.
•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 thesystem misinterpreting a close object as a sensor
problem, causing the “PARKSENSE UNAVAILABLE
SERVICE REQUIRED” message to be displayed in the
DID.
•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.
(Continued)
226 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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 Uconnect® System. Refer toUconnect® Set-
tings” in “Understanding Your Instrument Panel” for
further information.
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 pushed to
disable the system, the instrument cluster will
display the “PARKSENSE OFF” message for
approximately five seconds. Refer to “Driver
Information Display (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 pushed, and the
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 233

system requires service, the ParkSense® switch LED will
blink momentarily, and then the LED will be ON.
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 REQUIREDmessage for five seconds.
When the shift lever/gear selector is moved to Reverse
and the system has detected a faulted condition, the
Driver Information Display (DID) will display a
PARKSENSE UNAVAILABLE WIPE REAR SENSORS,
PARKSENSE UNAVAILABLE WIPE FRONT SENSORS
orPARKSENSE UNAVAILABLE SERVICE REQUIRED
pop up message for five seconds. After five seconds, a cargraphic will be displayed withUNAVAILABLEat 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 thePARKSENSE UNAVAIL-
ABLE WIPE REAR SENSORS,PARKSENSE UNAVAIL-
ABLE WIPE FRONT SENSORS,orPARKSENSE UN-
AVAILABLE SERVICE REQUIREDmessages 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 “Driver Information
Display (DID)” for further information.
IfPARKSENSE UNAVAILABLE WIPE REAR SENSORS
orPARKSENSE UNAVAILABLE WIPE FRONT SEN-
SORSappears in the Driver Information Display (DID)
make sure the outer surface and the underside of the rear
fascia/bumper and/or front fascia/bumper is clean and
234 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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 thePARKSENSE UNAVAILABLE SERVICE RE-
QUIREDmessage 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 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.
•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
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 235