2009 CHRYSLER 300 C Owners Manual

•The vehicle ahead slows to a speed below 15 mph
(24 km/h) and the system automatically disengages
itself.
•The distance setting is changed.
•The system disengages. (Refer to the information on
ACC Activation).
The maximum braking applied by ACC is limited; how-
ever, the driver can always apply the brakes manually, if
necessary.
NOTE:The brake lights will illuminate whenever the
ACC system applies the brakes.
A Proximity Warning will alert the driver if ACC predicts
that its maximum braking level is not sufficient to
maintain the set distance. If this occurs, a visual alert
“ATTENTION” will flash in the EVIC and a chime will
sound while ACC continues to apply its maximumbraking capacity. When this occurs, you should immedi-
ately apply the brakes as needed to maintain a safe
distance from the vehicle ahead.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 167
3

Adaptive Cruise Control (ACC) Menu
The EVIC displays the current ACC system settings. The
EVIC is located in the upper part of the instrument
cluster between the speedometer and the tachometer. The
information it displays depends on ACC system status.
Press the MENU button (located on the steer-
ing wheel) repeatedly until one of the follow-
ing displays in the EVIC:CRUISE OFFWhen ACC is deactivated, the display will read
“CRUISE OFF.”
Menu
Button
168 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ACC READY
When ACC is activated, the display will read “ACC
READY.”ACC SETWhen ACC is set, the set speed will display.
1 — Sensed Vehicle Indicator
2 — Set Speed
3 — Your Vehicle
4 — Following Distance Setting: Three Bars = Long; Two Bars =
Medium; One Bar = Short.UNDERSTANDING THE FEATURES OF YOUR VEHICLE 169
3

The set speed will continue to display in place of the
odometer reading when changing the EVIC display
while ACC is set.The ACC SET screen will display once again if any ACC
activity occurs, which may include any of the following:
•Set speed change
•Distance setting change
•System cancel
•Acquisition/loss of Target
•Driver override
•System off
•Proximity warning
•ACC warning
The EVIC will return to the last display selected
after five seconds of no ACC activity.
170 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Display Warnings and Maintenance
ACC Blinded Warning
The ACC Blinded Warning will display when conditions
temporarily limit system performance. This most often
occurs at times of poor visibility, such as in snow, fog,
heavy rain, or when driving into direct sunlight (sunrise
or sunset). The ACC system may also become tempo-
rarily blinded due to obstructions, such as dirt or ice. In
these cases, the EVIC will display “ACC Blinded” and
the system will deactivate.
NOTE:If the ACC Blinded Warning is active Normal
(Fixed Speed) Cruise Control is still available. For addi-
tional information refer to “Normal (Fixed Speed) Cruise
Control Mode” in this section.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 171
3

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 behind the grille,
slightly offset from the center of the 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 or the
sensor mount. Doing so could cause an ACC system
malfunction or failure and require a sensor realign-
ment.
•If the sensor is damaged due to an accident, 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 “CRUISE
OFF” state and will resume function by simply reactivat-
ing it.
ACC Sensor Location
172 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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 displaysACC
UNAVAILABLE,there may be a temporary malfunction
that limits ACC functionality. Although the vehicle is still
drivable under normal conditions, ACC will be tempo-
rarily unavailable. If this occurs, try activating ACC again
later, following a key cycle. If the problem persists, see
your authorized dealer.
Service ACC Warning
If the system turns off, and the EVIC displays “SERVICE
ACC,” 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.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 173
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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 hitch, such as reduced
detection range, please see your authorized dealer for
service.
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.
Turns and Bends
In turns or bends, ACC may detect a vehicle ahead too
late or too early. This may cause your vehicle to brake late
or unexpectedly. Give extra attention in curves and be
ready to apply the brakes if necessary. Be sure to select an
appropriate speed while driving in curves.
174 UNDERSTANDING THE FEATURES OF YOUR VEHICLE