2011 CHRYSLER 300 sensor

Display Warnings And Maintenance
“Clean Radar Sensor In Front Of Vehicle” Warning
The ACC “Clean Radar Sensor In Front Of Vehicle”
warning will display when conditions temporarily limit
system performance. This most often occurs at times of
poor visibility, such as in snow or heavy rain. The ACC
system may also become temporarily blinded due to
obstructions, such as mud, dirt or ice. In these cases, the
EVIC will display “Clean Radar Sensor In Front Of
Vehicle” and the system will deactivate.
The “Clean Radar Sensor In Front Of Vehicle” message
can sometimes be displayed while driving in highly
reflective areas (i.e. tunnels with reflective tiles, or ice and
snow). The ACC system will recover after the vehicle has
left these areas. Under rare conditions, when the radar is
not tracking any vehicles or objects in its path this
warning may temporarily occur.NOTE:
If the ACC “Clean Radar Sensor In Front Of
Vehicle” warning is active Normal (Fixed Speed) Cruise
Control is still available. For additional information refer
to “Normal (Fixed Speed) Cruise Control Mode” in this
section.
Clean Radar Sensor Warning
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If weather conditions are not a factor, the driver should
examine the sensor. It may require cleaning or removal of
an obstruction. The sensor is located in the center of the
vehicle behind the lower grille.
To keep the ACC System operating properly, it is impor-
tant to note the following maintenance items:
•Always keep the sensor clean. Carefully wipe the
sensor lens with a soft cloth. Be cautious not to
damage the sensor lens.
•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 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:
Installing a vehicle front-end protector or an
aftermarket grille or modifying the grille is not recom-
mended. Doing so may block the sensor and inhibit ACC
operation.
ACC 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 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 199

Service ACC Warning
If the system turns off, and the EVIC displays “ACC/
FCW Unavailable Service Radar Sensor”, it indicates
there is an internal system fault. Although the vehicle is
still drivable under normal conditions, have the system
checked by an authorized dealer.
Precautions While Driving With ACC
In certain driving situations, ACC may have detection
issues. In these cases, ACC may brake late or unexpect-
edly. The driver needs to stay alert and may need to
intervene.
Adding A Trailer Hitch
The weight of a trailer/hitch may affect the performance
of ACC. If there is a noticeable change in performance
following the installation of a trailer/hitch, or if the ACC
performance does not return to normal after removing
the trailer/hitch see your authorized dealer.
Offset Driving
ACC may not detect a vehicle in the same lane that is
offset from your direct line of travel. There will not be
sufficient distance to the vehicle ahead. The offset vehicle
may move in and out of the line of travel, which can
cause your vehicle to brake or accelerate unexpectedly.
ACC/FCW Unavailable Warning
200 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

•The Electronic Stability Control/Traction Control Sys-
tem (ESC/TCS) activates.
To Resume
Press the RES+button and then remove your foot from
the accelerator pedal. The EVIC will display the last set
speed.
To Turn Off
The system will turn off and erase the set speed in
memory if:
•You push and release the ON/OFF button.
•You turn off the ignition.
•You switch off ESC.
If the Cruise Control system is turned off and reactivated,
the system will return to the last driver setting (ACC or
Normal Cruise Control).
Forward Collision Warning — If Equipped
Forward Collision Warning (FCW) warns the driver of a
potential collision with the vehicle in front of you and
prompts the driver to take action in order to avoid the
collision.
FCW monitors the information from the forward looking
sensor as well as the Electronic Brake Controller (EBC),
wheel speed sensors, i.e., to calculate a probable rear-end
collision. When the system determines that a rear-end
collision is probable a warning message (both audible
and visual) will be displayed on the EVIC. When the
system determines a collision with the vehicle in front of
you is no longer probable, the warning message will be
deactivated.
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Changing the FCW status to the “Near” setting, allows
the system to warn you of a possible collision with the
vehicle in front of you when you are much closer. This
setting provides less reaction time than the “Far” setting,
which allows for a more dynamic driving experience.
Changing the FCW status to “Off” prevents the system
from warning you of a possible collision with the vehicle
in front of you.
NOTE:
•In the “Off” setting FCW OFF will be displayed on the
Uconnect Touch™ display.
•The system will retain the last setting selected by the
driver after ignition shut down.
•FCW will not react to irrelevant objects such as over-
head objects, ground reflections, objects not in the pathof 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 indicates
208 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

there is an internal system fault. Although the vehicle is
still drivable under normal conditions, have the system
checked by an authorized dealer.
PARKSENSEPARK ASSIST — IF EQUIPPED
The ParkSense Park Assist system provides visual and
audible indications of the distance between the rear and/or front fascia and a detected obstacle when backing
up or moving forward, e.g. during a parking maneuver.
Refer to ParkSense
System Usage Precautions for limi-
tations 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 is in
REVERSE or DRIVE. If ParkSense is enabled at one of
these shift lever positions, 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).
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
ACC/FCW Unavailable Warning
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 209

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.
The six ParkSensesensors, located in the front fascia/
bumper, monitor the area in front of the vehicle that is
within the sensors’ field of view. The sensors can detect
obstacles from approximately 12 in (30 cm) up to 47 in
(120 cm) from the front 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 Uconnect
Touch™ System. Refer to “Uconnect Touch™ Settings” in
“Understanding Your Instrument Panel” for further in-
formation. The ParkSense
Warning screen is located within the
Electronic Vehicle Information Center (EVIC). It provides
both visual and audible warnings to indicate the distance
between the rear fascia/bumper and/or front fascia/
bumper and the detected obstacle.
Park Assist Display
210 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

disabled, the EVIC will display the “PARK ASSIST OFF”
message for as long as the vehicle is in REVERSE or for
5 seconds when the vehicle is in DRIVE.
The ParkSensesystem uses four sensors located in the
rear bumper fascia to scan for obstacles up to 79 in
(200 cm) away from the rear bumper fascia. The Park-
Sense system uses six sensors located in the front
bumper fascia to scan for obstacles up to 47 in (120 cm)
away from the front bumper fascia. The warning display
located above in the Instrument Cluster ’s EVIC provides
both visible and audible warnings to indicate the range of
the object.
Service The ParkSense Park Assist System
When the ParkSensePark Assist System is malfunction-
ing, the instrument cluster will actuate a single chime,
once per ignition cycle. The instrument cluster will
display the “CLEAN PARK ASSIST SENSORS” message when any of the rear sensor(s) is blocked by snow, mud,
or ice and the vehicle is shifted into REVERSE or DRIVE.
The instrument cluster will display the “CLEAN PARK
ASSIST SENSORS” message when any of the front sen-
sor(s) is blocked by snow, mud, or ice and the vehicle is
shifted into REVERSE or DRIVE. The instrument cluster
will display the “SERVICE PARK ASSIST SYSTEM”
message when any of the rear or front sensors are
damaged and require service. When the shift lever is
moved to REVERSE or DRIVE and the system has
detected a faulted condition, the EVIC will display the
“CLEAN PARK ASSIST SENSORS” or the “SERVICE
PARK ASSIST SYSTEM” message for as long as the
vehicle is in REVERSE or DRIVE (at speeds less than
11 mph [18 km/h]). Under this condition ParkSense
will
not operate. Refer to “Electronic Vehicle Information
Center (EVIC)” in “Understanding Your Instrument
Panel” for further information.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 215