2014 JEEP GRAND CHEROKEE brake

Overtake Aid
When driving with ACC engaged and following a target
vehicle, the system will provide an additional accelera-
tion to assist in passing vehicles in front. This additional
acceleration is triggered when the driver utilizes the left
turn signal. In locations with left hand drive traffic,
Overtake Aid is active only when passing on the left
hand side of the Target vehicles.
When a vehicle goes from a location with left hand drive
traffic to a location with right hand drive traffic, the ACC
system will automatically detect traffic direction. In this
condition, Overtake Aid is active only when passing on
the right side of the Target vehicle. This additional
acceleration is triggered when the driver utilizes the right
turn signal. In this condition the ACC system will no
longer provide Overtake Aid on the left side until it
determines that the vehicle has moved back to a location
with left hand drive traffic.
ACC Operation at Stop
If the ACC system brings your vehicle to a standstill
while following a target vehicle, if the target vehicle starts
moving within two seconds of your vehicle coming to a
standstill, your vehicle will resume motion without the
need for any driver action.
If the target vehicle does not start moving within two
seconds of your vehicle coming to a standstill, the ACC
with Stop system will cancel and the brakes will ramp-
out. Driver intervention will be required at this moment.
While ACC with Stop is holding your vehicle at a
standstill, if the driver seatbelt is unbuckled or the driver
door is opened, the ACC with Stop system will cancel
and the brakes will ramp-out. Driver intervention will be
required at this moment.
210 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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

Lane Changing
ACC may 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 not detect the vehicle until it’s too late for the ACCsystem to take action. ACC may not detect a vehicle until
it is completely in the lane. There may not be sufficient
distance to the lane-changing vehicle. Always be atten-
tive and ready to apply the brakes if necessary.
ACC Hill Example
Lane Changing Example
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 217

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 may not be
sufficient distance to the vehicle ahead.
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.
Narrow Vehicle Example
Stationary Object And Stationary Vehicle Example
218 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

To Cancel
The following conditions will cancel the Normal (Fixed
Speed) Cruise Control without clearing the memory:
•The brake pedal is applied.
• You press the CANCEL button.
• The Electronic Stability Control/Traction Control Sys-
tem (ESC/TCS) activates.
• The vehicle parking brake is applied.
• The braking temperature exceeds normal range (over-
heated).
• The shift lever is removed from the Drive position.
To Resume Speed
To resume a previously set speed, push the RES button
and release. Resume can be used at any speed above
20 mph (32 km/h).
To Turn Off
The system will turn off and erase the set speed in
memory if:
•You push the Normal (Fixed Speed) Cruise Control
ON/OFF button.
• You turn off the ignition.
• You engage Four-Wheel Drive Low.
• You push the Adaptive Cruise Control (ACC) On/Off
button.
222 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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

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

Front Park Assist Audible Alerts
ParkSense® will turn off the Front Park Assist audible
alert (chime) after approximately 3 seconds when an
obstacle has been detected, the vehicle is stationary, and
brake pedal is applied.
Adjustable Chime Volume Settings
Front and Rear chime volume settings can be selected
from the EVIC or Uconnect® System — if equipped.
If Uconnect® System is equipped, chime volume settings
will not be accessible from the EVIC.
The chime volume settings include LOW, MEDIUM, and
HIGH. The factory default volume setting is MEDIUM.
ParkSense® will retain its last known configuration state
through ignition cycles.Enabling And Disabling ParkSense®
ParkSense® can be enabled and disabled with the
ParkSense® switch.
When the ParkSense® switch is pressed to dis-
able the system, the instrument cluster will
display the “PARKSENSE OFF” message for
approximately five seconds. Refer to “Electronic
Vehicle Information Center (EVIC)” in “Understanding
Your Instrument Panel” for further information. When the
shift lever is moved to REVERSE and the system is
disabled, the EVIC will display the “PARKSENSE OFF”
message for as long as the vehicle is in REVERSE.
The ParkSense® switch LED will be ON when ParkSense®
is disabled or requires service. The ParkSense® switch LED
will be OFF when the system is enabled. If the ParkSense®
switch is pressed, and the system requires service, the
ParkSense® switch LED will blink momentarily, and then
the LED will be ON.
242 UNDERSTANDING THE FEATURES OF YOUR VEHICLE