2012 JEEP GRAND CHEROKEE warning

of the car, stationary objects that are far away, oncom-
ing traffic, or leading vehicles with the same or higher
rate of speed.
•FCW will be disabled like ACC below with the un-
available screens.
FCW Unavailable Warning
If the system turns off, and the EVIC displays “ACC/
FCW Unavailable, Vehicle System Error”, there may be a
temporary malfunction that limits FCW functionality.
Although the vehicle is still drivable under normal
conditions, FCW will be temporarily unavailable. If this
occurs, try activating FCW again later, following a key
cycle. If the problem persists, see your authorized dealer.
Service FCW Warning
If the system turns off, and the EVIC displays “ACC/
FCW Unavailable Service Radar Sensor”, it indicatesthere is an internal system fault. Although the vehicle is
still drivable under normal conditions, have the system
checked by an authorized dealer.ACC/FCW Unavailable Warning
228 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

PARKSENSEREAR PARK ASSIST — IF
EQUIPPED
The ParkSenseRear 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 ParkSenseSystem
Usage Precautions for limitations of this system and
recommendations.
ParkSensewill retain the last system state (enabled or
disabled) from the last ignition cycle when the ignition is
changed to the ON/RUN position.
ParkSensecan be active only when the shift lever is in
REVERSE. If ParkSenseis 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).
ParkSenseSensors
The four ParkSensesensors, 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.
ParkSenseWarning Display
The ParkSenseWarning 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.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 229

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.ParkSenseDisplay
When the vehicle is in REVERSE, the warning display
will turn ON indicating the system status.
ParkSenseWarning Display
Park Assist System ON
230 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
232 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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
ChimeNone Single 1/2
Second ToneSlow Fast Continuous
Display Message Park Assist Sys-
tem ONWarning Object
DetectedWarning Object
DetectedWarning Object
DetectedWarning Object
Detected
Arcs None 3 Solid
(Continuous)3 Slow
Flashing2 Slow
Flashing1 Slow
Flashing
Radio Mute No Yes Yes Yes Yes
NOTE:ParkSensewill 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, orSound and Display. Refer to “Electronic Vehicle Informa-
tion Center (EVIC)/Personal Settings (Customer-
Programmable Features)” in “Understanding Your In-
strument Panel” for further information.
When the ParkSenseswitch is pressed to
disable the system, the instrument cluster will
display the “PARK ASSIST SYSTEM OFF” mes-
sage for approximately five seconds. Refer to
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 233

•On vehicles equipped with a tailgate, ParkSense
should be disabled when the tailgate is in the lowered
or open position and the vehicle is in REVERSE. A
lowered tailgate could provide a false indication that
an obstacle is behind the vehicle.
CAUTION!
•ParkSenseis 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.
•The vehicle must be driven slowly when using
ParkSensein 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.
WARNING!
•Drivers must be careful when backing up even
when using the ParkSenseRear Park Assist Sys-
tem. Always check carefully behind your vehicle,
look behind you, and be sure to check for pedes-
trians, animals, other vehicles, obstructions, and
blind spots before backing up. You are responsible
for safety and must continue to pay attention to
your surroundings. Failure to do so can result in
serious injury or death.
(Continued)
236 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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.
PARKVIEWREAR BACK UP CAMERA — IF
EQUIPPED
Your vehicle may be equipped with the ParkViewRear
Back Up Camera that allows you to see an on-screen
image of the rear surroundings of your vehicle whenever
the shift lever is put into REVERSE. The image will be
displayed on the Navigation/Multimedia radio display
screen along with a caution note to “check entire sur-
roundings” across the top of the screen. After five seconds
this note will disappear. The ParkViewcamera is located
on the rear of the vehicle above the rear License plate.
When the vehicle is shifted out of REVERSE, the rear
camera mode is exited and the navigation or audio screen
appears again.
When displayed, static grid lines will illustrate the width
of the vehicle while a dashed center-line will indicate the
center of the vehicle to assist with aligning to a hitch/
receiver. The static grid lines will show separate zones
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 237

that will help indicate the distance to the rear of the
vehicle. The following table shows the approximate
distances for each zone:
Zone Distance to the rear of the vehicle
Red 0-1ft(0-30cm)
Yellow 1ft-3ft(30cm-1m)
Green 3 ft or greater (1 m or greater)
WARNING!
Drivers must be careful when backing up even when
using the ParkViewRear Back Up Camera. Always
check carefully behind your vehicle, and be sure to
check for pedestrians, animals, other vehicles, ob-
structions, or blind spots before backing up. You are
responsible for the safety of your surroundings and
must continue to pay attention while backing up.
Failure to do so can result in serious injury or death.
CAUTION!
•To avoid vehicle damage, ParkViewshould only
be used as a parking aid. The ParkViewcamera is
unable to view every obstacle or object in your
drive path.
(Continued)
238 UNDERSTANDING THE FEATURES OF YOUR VEHICLE