2012 JEEP GRAND CHEROKEE sensor

ParkSenseSystem Usage Precautions
NOTE:
•Ensure that the rear bumper is free of snow, ice, mud,
dirt and debris to keep the ParkSensesystem operat-
ing properly.
•Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense.
•When you turn ParkSenseoff, the instrument cluster
will display “PARK ASSIST SYSTEM OFF.” Further-
more, once you turn ParkSenseoff, 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 ParkSenseis turned off, the EVIC will
display “PARK ASSIST SYSTEM 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 ParkSensesensors 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 ParkSensesystem 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.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 235

•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
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 237

maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
of reasons, including the installation of replacement or
alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check the
TPMS malfunction telltale after replacing one or moretires or wheels on your vehicle, to ensure that the
replacement or alternate tires and wheels allow the TPMS
to continue to function properly.
CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system opera-
tion or sensor damage may result when using re-
placement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage. Do not use tire sealant from a can or
balance beads if your vehicle is equipped with a
TPMS, as damage to the sensors may result.
288 UNDERSTANDING YOUR INSTRUMENT PANEL

•Service blind spot system
•Blind spot detection unavailable
•Blind spot system off
•Blind spot system unavailable sensor blocked
•Normal Cruise Ready — When Adaptive Cruise Con-
trol (ACC) system is turned off and Normal (Fixed
Speed) Cruise Control mode is available. Refer to
“Adaptive Cruise Control (ACC)” in “Understanding
The Features Of Your Vehicle” (if equipped).
•Adaptive Cruise Off — When the Adaptive Cruise
Control (ACC) system is turned off. Refer to “Adap-
tive Cruise Control (ACC)” in “Understanding The
Features Of Your Vehicle” (if equipped).
•ACC Ready — When the ACC system is activated.
Refer to “Adaptive Cruise Control (ACC)” in “Under-
standing The Features Of Your Vehicle” (if equipped).
•ACC Set — After setting the desired speed in the ACC
system. Refer to “Adaptive Cruise Control (ACC)” in
“Understanding The Features Of Your Vehicle” (if
equipped).
•ACC Cancelled — To disable the ACC system. Refer to
“Adaptive Cruise Control (ACC)” in “Understanding
The Features Of Your Vehicle” (if equipped).
•Sensed Vehicle Indicator — The system detects a
slower moving vehicle in the same lane. Refer to
“Adaptive Cruise Control (ACC)” in “Understanding
The Features Of Your Vehicle” (if equipped).
•Driver Override — If you apply the accelerator after
setting the desired speed in the ACC system. Refer to
“Adaptive Cruise Control (ACC)” in “Understanding
The Features Of Your Vehicle” (if equipped).
•Distance Set — After changing the desired following
distance in the ACC system, this message will display
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UNDERSTANDING YOUR INSTRUMENT PANEL 297

momentarily. Refer to “Adaptive Cruise Control
(ACC)” in “Understanding The Features Of Your
Vehicle” (if equipped).
•Brake — If the ACC system predicts that its maximum
braking level is not sufficient to maintain the set
distance, this message will flash and a chime will
sound while ACC continues to apply its maximum
braking capacity. When this occurs, you should imme-
diately apply the brakes as needed to maintain a safe
distance from the vehicle ahead. Refer to “Adaptive
Cruise Control (ACC)” in “Understanding The Fea-
tures Of Your Vehicle” (if equipped).
•Clean Radar Sensor in the Front of Vehicle — If the
ACC system deactivates due to performance limiting
conditions. Refer to “Adaptive Cruise Control (ACC)”
in “Understanding The Features Of Your Vehicle” (if
equipped).
•ACC/FCW Unavailable Vehicle System Error — If the
ACC system turns off due to a temporary malfunction
that limits functionality. Refer to “Adaptive Cruise
Control (ACC)” in “Understanding The Features Of
Your Vehicle” (if equipped).
•ACC/FCW Unavailable Service Radar Sensor — If the
ACC system turns off due to an internal system fault
that requires service from an authorized dealer. Refer
to “Adaptive Cruise Control (ACC)” in “Understand-
ing The Features Of Your Vehicle” (if equipped).
•Cruise Off When Park Brake is On
•ACC Cancelled Below Min. Speed.
•Coolant low
•Service air suspension system
•Oil change due
•Key in ignition
298 UNDERSTANDING YOUR INSTRUMENT PANEL

display CAL until the compass is calibrated. You may
also calibrate the compass by completing one or more
360–degree turns (in an area free from large metal or
metallic objects) until the CAL indicator displayed in the
EVIC turns off. The compass will now function normally.
NOTE:A good calibration requires a level surface and
an environment free from large metallic objects such as
buildings, bridges, underground cables, railroad tracks,
etc.
Compass Variance
Compass Variance is the difference between Magnetic
North and Geographic North. To compensate for the
differences the variance should be set for the zone where
the vehicle is driven, per the zone map. Once properly
set, the compass will automatically compensate for the
differences, and provide the most accurate compass
heading. For the most accurate compass performance, the
compass must be set using the following steps.NOTE:Keep magnetic materials away from the top of
the instrument panel, such as iPod’s, Mobile Phones,
Laptops and Radar Detectors. This is where the compass
module is located, and it can cause interference with the
compass sensor, and it may give false readings.
1. Turn the ignition switch ON.
Compass Variance Map
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UNDERSTANDING YOUR INSTRUMENT PANEL 315

NOTE:If your vehicle has experienced any damage in
the area where the sensor is located, even if the fascia is
not damaged, the sensor may have become misaligned.
Take your vehicle to an authorized dealer to verify sensor
alignment. Having a sensor that is misaligned will result
in the BSM not operating to specification.
Forward Collision Warning
The Forward Collision Warning (FCW) feature can be can
be set to Far, set to Near or turned Off. The default status
of FCW is the Far setting. This means the system will
warn you of a possible collision with the vehicle in front
of you when you are farther away. This gives you the
most reaction time. To change the setting for more
dynamic driving select the Near setting. This warns you
of a possible collision with the vehicle in front of you
when you are much closer. This allows for a more
dynamic driving experience. To change FCW status pressand release the SELECT button until a check-mark ap-
pears next to the feature showing the system has been
activated or the check-mark is removed showing the
system has been deactivated.
For further information, refer to ”Adaptive Cruise Con-
trol (ACC)” in “Understanding The Features Of Your
Vehicle.”Park Assist System
The Rear Park Assist system will scan for objects behind
the vehicle when the transmission is in the REVERSE
position and the vehicle speed is less than 11 mph
(18 km/h). The system can be enabled with Sound Only,
Sound and Display, or turned OFF through the EVIC. To
make your selection, scroll up or down until the pre-
ferred setting is highlighted, then press and release the
SELECT button until a check-mark appears next to the
setting, showing that the setting has been selected. Refer
324 UNDERSTANDING YOUR INSTRUMENT PANEL