2014 JEEP GRAND CHEROKEE warning

Service ACC/FCW Warning
If the system turns off, and the EVIC displays “ACC/FCW
Unavailable Service Required”or “Cruise/FCW Unavail-
able Service Required”, there may be an internal system
fault or a temporary malfunction that limits ACC function-
ality. 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.
Precautions While Driving With ACC
In certain driving situations, ACC may have detection
issues. In these cases, ACC may brake late or unexpectedly.
The driver needs to stay alert and may need to intervene.
Towing A Trailer
NOTE:Towing a trailer is not advised when using ACC.
Offset Driving
ACC may not detect a vehicle in the same lane that is
offset from your direct line of travel, or a vehicle merging
in from a side lane. There may 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.
Offset Driving Condition Example
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 215

General Information
FCC Requirements For Vehicular Radar SystemsClassification Specifications:47 C.F.R. Part 15
47 C.F.R Part 15.515
Normal (Fixed Speed) Cruise Control Mode
In addition to Adaptive Cruise Control mode, a Normal
(Fixed Speed) Cruise Control mode is available for cruis-
ing at fixed speeds. The Normal (Fixed Speed) Cruise
Control mode is designed to maintain a set cruising
speed without requiring the driver to operate the accel-
erator. Cruise Control can only be operated if the vehicle
speed is above 20 mph (32 km/h). To change between the different cruise control modes,
press the ADAPTIVE CRUISE CONTROL (ACC) ON/
OFF button which turns the ACC and the NORMAL
(Fixed Speed) CONTROL OFF. Pressing of the NORMAL
(Fixed Speed) CRUISE CONTROL ON/OFF button will
result in turning ON (changing to) the Normal (Fixed
Speed) Cruise Control mode.WARNING!
In the Normal (Fixed Speed) Cruise Control mode,
the system will not react to vehicles ahead. Be sure to
maintain a safe distance between your vehicle and
the vehicle ahead. Always be aware which mode is
selected. Failure to follow these warnings can result
in a collision and death or serious personal injury.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 219

FORWARD COLLISION WARNING (FCW) WITH
MITIGATION — IF EQUIPPED
Forward Collision Warning (FCW) With Mitigation
Operation
The Forward Collision Warning (FCW) system with
mitigation provides the driver with audible warnings,
visual warnings (within the EVIC), and may apply a
brake jerk to warn the driver when it detects a potential
frontal collision. The warnings and limited braking are
intended to provide the driver with enough time to react,
avoid or mitigate the potential collision.NOTE:
FCW monitors the information from the forward
looking sensors as well as the Electronic Brake Controller
(EBC), to calculate the probability of a forward collision.
When the system determines that a forward collision is
probable, the driver will be provided with audible and
visual warnings and may provide a brake jerk warning. If
the driver does not take action based upon these progres-
sive warnings, then the system will provide a limited
level of active braking to help slow the vehicle and
mitigate the potential forward collision. If the driver
reacts to the warnings by braking and the system deter-
mines that the driver intends to avoid the collision by
braking but has not applied sufficient brake force, the
system will compensate and provide additional brake
force as required.3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 223

When the system determines a collision with the vehicle
in front of you is no longer probable, the warning
message will be deactivated.NOTE:
•
The minimum speed for FCW activation is 5 mph
(10 km/h).
• The FCW alerts may be triggered on objects other than
vehicles such as guard rails or sign posts based on the
course prediction. This is expected and is a part of
normal FCW activation and functionality.
• It is unsafe to test the FCW system. To prevent such
misuse of the system, after four Active Braking events
within a key cycle, the Active Braking portion of FCW
will be deactivated until the next key cycle.
• The FCW system is intended for on-road use only. If
the vehicle is taken off-road, the FCW system should
be deactivated to prevent unnecessary warnings to the
surroundings. If the vehicle enters 4WD Low Range,
the FCW system will be automatically deactivated.
FCW Message
224 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!
Forward Collision Warning (FCW) is not intended to
avoid a collision on its own, nor can FCW detect
every type of potential collision. The driver has the
responsibility to avoid a collision by controlling the
vehicle via braking and steering. Failure to follow
this warning could lead to serious injury or death.
Turning FCW ON Or OFF
NOTE:The default status of FCW is “On”, this allows
the system to warn you of a possible collision with the
vehicle in front of you.
The forward collision button is located on the switch
panel below the Uconnect® display. To turn the FCW system OFF, press the forward collision
button once to turn the system OFF (led turns on).
To turn the FCW system back ON, press the forward
collision button again to turn the system ON (led turns
off).
Changing the FCW status to “Off” prevents the system
from warning you of a possible collision with the vehicle
in front of you.
Changing the Active Braking status to “Off” prevents the
system from providing limited autonomous braking, or
additional brake support if the driver is not braking
adequately in the event of a potential frontal collision.
NOTE:
The FCW system state is kept in memory from
one key cycle to the next. If the system is turned OFF,
it will remain off when the vehicle is restarted.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 225

Changing FCW And Active Braking Status
To Change The FCW Sensitivity And Active Braking
Settings With Uconnect® 8.4/8.4A System Screen —
If Equipped
Follow these steps to set the FCW Sensitivity and Active
Braking:
1. Touch the “Controls” soft-key located on the bottom ofthe Uconnect® display.
2. Touch the “Settings” soft-key.
3. Touch the “Safety & Driving Assistance” soft-key.
4. Touch the “FWD Collision Warning”, Far or Near soft-key for your desired preference.
5. Touch the “Active Braking” On or Off soft-key.
NOTE: A check mark will appear in the selection box to
indicate the setting. To Change The FCW Sensitivity And Active Braking
Settings With Uconnect® 5.0 System Screen —
If Equipped
Follow these steps to set the FCW Sensitivity and Active
Braking:
1. Press the “+ MORE” hard-key located on the lower
right side of the Uconnect® system.
2. Touch the “Settings” soft-key.
3. Touch the “Safety/Assistance” soft-key.
4. Touch the first “FWD Collision W...” soft-key.
5. Touch the “FWD Collision Warning” Far or Near soft-key for your desired preference. Then touch the
back arrow.
6. Touch the second “FWD Collision W...” soft-key.
7. Touch the “Active Braking” On or Off soft-key.
226 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

The default status of FCW is the “Far” setting and the
Active Braking is the “On” setting, this allows the system
to warn you of a possible collision with the vehicle in
front of you when you are farther away and it applies
limited braking. This gives you the most reaction time to
avoid a possible collision.
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.
NOTE:
•The system will retain the last setting selected by the
driver after ignition shut down.
• FCW may not react to irrelevant objects such as
overhead objects, ground reflections, objects not in the path of the car, stationary objects that are far away,
oncoming traffic, or leading vehicles with the same or
higher rate of speed.
• FCW will be disabled like ACC, with the unavailable
screens.
FCW Limited Warning
If the system turns off, and the EVIC displays “ACC/
FCW Limited Functionality” or “ACC/FCW Limited
Functionality Clean Front Windshield” momentarily,
there may be a condition that limits FCW functionality.
Although the vehicle is still drivable under normal
conditions, the active braking may not be fully available.
Once the condition that limited the system performance
is no longer present, the system will return to its full
performance state. If the problem persists, see your
authorized dealer.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 227

Service FCW Warning
If the system turns off, and the EVIC displays:
•ACC/FCW Unavailable Service Required
• Cruise/FCW Unavailable Service Required
This indicates there is an internal system fault. Although
the vehicle is still drivable under normal conditions, have
the system checked by an authorized dealer.
PARKSENSE® REAR PARK ASSIST —
IF EQUIPPED
The ParkSense® Rear 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 ParkSense® System
Usage Precautions for limitations 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. If ParkSense® is enabled at this shift lever
position, the system will remain active until the vehicle
speed is increased to approximately 7 mph (11 km/h) or
above. When in REVERSE and above the system’s oper-
ating speed, a warning will appear in the EVIC indicating
the vehicle speed is too fast. The system will become
active again if the vehicle speed is decreased to speeds
less than approximately 6 mph (9 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
obstacles from approximately 12 in (30 cm) up to 79 in
228 UNDERSTANDING THE FEATURES OF YOUR VEHICLE