2010 CHRYSLER 300 Owners Manual

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
176 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 displays ACC
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.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 177

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.
178 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ACC may occasionally provide braking and/or a driver
alert that you consider unnecessary. This may be the
system’s response to signs, guardrails, and other station-
ary objects in a curve. This may also occur at the base of
steep hills. This is normal operation and your vehicle
does not require service.
Using ACC on Hills
When driving on hills, ACC may not detect a vehicle in
your lane. Depending on the speed, vehicle load, traffic
conditions, and the steepness of the hills, ACC perfor-
mance may be limited.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 179

Lane Changing
ACC will not detect a vehicle until it is completely in the
lane in which you are traveling. In the illustration shown,
ACC has not yet detected the vehicle changing lanes and
it may detect the vehicle until it’s too late for the ACC
system to take action. ACC will not detect a vehicle until
it is completely in the lane. There will not be sufficient
distance to the lane-changing vehicle. Always be atten-
tive and ready to apply the brakes if necessary.
Narrow Vehicles
Some narrow vehicles traveling near the outer edges of
the lane or edging into the lane are not detected until they
have moved fully into the lane. There will not be suffi-
cient distance to the vehicle ahead.
180 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Stationary Objects and Vehicles
ACC does not react to stationary objects and stationary
vehicles. For example, ACC will not react in situations
where the vehicle you are following exits your lane and
the vehicle ahead is stopped in your lane. Always be
attentive and ready to apply the brakes if necessary.
General Information
CLASS 1 LASER PRODUCTClassification Specifications:
21 C.F.R part 1040.10 & 1040.11 DIN EN 60825-1:2003IEC 60825-1:2001
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 181

Normal (Fixed Speed) Cruise Control Mode
In addition to adaptive cruise control mode, a normal
(fixed speed) cruise control mode is available for cruising
at fixed speeds. The Normal cruise control mode is
designed to maintain a set cruising speed without requir-
ing the driver to operate the accelerator. Cruise control
can only be operated if the vehicle speed is above 25 mph
(40 km/h).
To change modes, press and hold the ON/OFF/MODE
button for at least one second in either the OFF state or
the READY state.Normal Cruise Ready will be dis-
played once the mode becomes available. To switch back
to ACC, press and hold the ON/OFF/MODE button
again for at least one second.WARNING!
In the normal cruise control mode, the system will
not react to vehicles ahead. In addition, the proximity
warning does not activate and no alarm will sound
even if you are too close to the vehicle ahead since
the presence of the vehicle ahead nor the vehicle-to-
vehicle distance is detected. Be sure to maintain a
safe distance between your vehicle and the vehicle
ahead. Always be aware which mode is selected.
To set a Desired Speed
When the vehicle reaches the speed desired, tap the lever
down and release (SET/DECEL). The EVIC will display
the set speed.
NOTE: You must observe the display when setting or
changing speed, not the speedometer.
182 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

To Vary the Speed Setting
There are two ways to change the set speed:
•Use the accelerator pedal to adjust the vehicle to the
desired speed and push the lever down (SET/DECEL).
•Tap the stalk up (ACCEL) or down (DECEL) to
increase or decrease the set speed in 1 mph (1 km/h)
increments respectively. Hold the lever up (ACCEL) or
down (DECEL) for 5 mph (10 km/h) increments.
To Cancel
The system will disable Normal cruise control without
erasing the memory if:
•You softly tap or depress the brake pedal.
•You pull the speed control lever toward you (CAN-
CEL).
•The Electronic Stability Program/Traction Control
System (ESP/TCS) activates.
To Resume
Push the lever up and release (RESUME/ACCEL) 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/MODE button.
•You turn off the ignition.
•You switch off ESP.
If the cruise control system is turned off and reactivated,
the system will return to the Vehicle-to-vehicle (adaptive)
distance control mode.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 183