2015 JEEP CHEROKEE brake

ACC will allow you to keep cruise control engaged in
light to moderate traffic conditions without the constant
need to reset your cruise control. ACC utilizes a radar
sensor and a forward facing camera designed to detect a
vehicle directly ahead of you.
NOTE:
•If the sensor does not detect a vehicle ahead of you,
ACC will maintain a fixed set speed.
•If the ACC sensor detects a vehicle ahead, ACC will
apply limited braking or acceleration (not to exceed
the original set speed) automatically to maintain a
preset following distance, while matching the speed of
the vehicle ahead.
WARNING!
•Adaptive Cruise Control (ACC) is a convenience
system. It is not a substitute for active driving
involvement. It is always the driver ’s responsibil-
ity to be attentive of road, traffic, and weather
conditions, vehicle speed, distance to the vehicle
ahead; and, most importantly, brake operation to
ensure safe operation of the vehicle under all road
conditions. Your complete attention is always re-
quired while driving to maintain safe control of
your vehicle. Failure to follow these warnings can
result in a collision and death or serious personal
injury.
•The ACC system:
•Does not react to pedestrians, oncoming vehicles,
and stationary objects (e.g., a stopped vehicle in a
traffic jam or a disabled vehicle).
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192 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!(Continued)
•Cannot take street, traffic, and weather condi-
tions into account, and may be limited upon
adverse sight distance conditions.
•Does not always fully recognize complex driving
conditions, which can result in wrong or missing
distance warnings.
•Will bring the vehicle to a complete stop while
following a target vehicle and hold the vehicle
for approximately 3 minutes in the stop position.
If the target vehicle does not start moving within
3 minutes the parking brake will be activated,
and the ACC system will be cancelled.
You should switch off the ACC system:
•When driving in fog, heavy rain, heavy snow, sleet,
heavy traffic, and complex driving situations (i.e.,
in highway construction zones).
(Continued)
WARNING!(Continued)
•When entering a turn lane or highway off ramp;
when driving on roads that are winding, icy, snow-
covered, slippery, or have steep uphill or downhill
slopes.
•When towing a trailer up or down steep slopes.
•When circumstances do not allow safe driving at a
constant speed.
The Cruise Control system has two control modes:
•Adaptive Cruise Control mode for maintaining an
appropriate distance between vehicles.
•Normal (fixed speed) electronic speed control mode
for cruising at a constant preset speed. For additional
information, refer to “Normal (Fixed Speed) Cruise
Control Mode” in this section.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 193

NOTE:Any chassis/suspension or tire size modifications
to the vehicle will effect the performance of the Adaptive
Cruise Control and Forward Collision Warning System.
Activating Adaptive Cruise Control (ACC)
You can only engage ACC if the vehicle speed is above
0 mph (0 km/h).
The minimum Set Speed for the ACC system is 20 mph
(32 km/h).
When the system is turned on and in the READY state,
the Electronic Vehicle Information Center (EVIC) or
Driver Information Display (DID) displays “ACC
Ready.”
When the system is OFF, the EVIC/DID displays “Adap-
tive Cruise Control (ACC) Off.”
NOTE:You cannot engage ACC under the following
conditions:
•When in Four-Wheel Drive Low.
•When you apply the brakes.
•When the parking brake is set.
•When the automatic transmission is in PARK, RE-
VERSE or NEUTRAL.
•When the Vehicle speed is outside of the speed range.
•When the brakes are overheated.
•When the driver door is open.
•When the driver seat belt is unbuckled.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 195

WARNING!
Leaving the Adaptive Cruise Control (ACC) system
on when not in use is dangerous. You could acciden-
tally set the system or cause it to go faster than you
want. You could lose control and have a collision.
Always leave the system off when you are not using
it.
To Set A Desired ACC Speed
When the vehicle reaches the speed desired, push the
SET+button or the SET-button and release. The
EVIC/DID will display the set speed.
If the system is Set when the vehicle speed is below
20 mph (32 km/h), the Set Speed shall be defaulted to
20 mph (32 km/h). If the system is Set when the vehicle
speed is above 20 mph (32 km/h), the Set Speed shall be
the current speed of the vehicle.
NOTE:ACC cannot be set if there is a stationary vehicle
in front of your vehicle in close proximity.
Remove your foot from the accelerator pedal. If you do
not, the vehicle may continue to accelerate beyond the set
speed. If this occurs:
•The message “DRIVER OVERRIDE” will display in
the EVIC/DID.
•The system will not be controlling the distance be-
tween your vehicle and the vehicle ahead. The vehicle
speed will only be determined by the position of the
accelerator pedal.
To Cancel
The following conditions cancel the system:
•The brake pedal is applied.
•The CANCEL button is pressed.
•An Anti-Lock Brake System (ABS) event occurs.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 197

•The shift lever/gear selector is removed from the
Drive position.
•The Electronic Stability Control/Traction Control Sys-
tem (ESC/TCS) activates.
•The vehicle parking brake is applied.
•Driver seatbelt is unbuckled at low speeds.
•Driver door is opened at low speeds.
•A Trailer Sway Control (TSC) event occurs.
•The driver switches ESC to full-off mode.
To Turn Off
The system will turn off and clear the set speed in
memory if:
•The Adaptive Cruise Control (ACC) ON/OFF button
is pressed.
•The Normal (Fixed Speed) Electronic Speed Control
ON/OFF button is pressed.
•The ignition is turned OFF.
•You switch to Four-Wheel Drive Low.
To Resume
If there is a set speed in memory press the RES (resume)
button and then remove your foot from the accelerator
pedal. The EVIC/DID will display the last set speed.
NOTE:
•If your vehicle stays at standstill for longer than two
seconds, then the driver will either have to press the
RES (resume) button, or apply the accelerator pedal to
reengage the ACC to the existing Set Speed.
•ACC cannot be resumed if there is a stationary vehicle
in-front of your vehicle in close proximity.
198 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

To Decrease Speed
While ACC is set, the set speed can be decreased by
pressing the SET-button.
The speed decrement shown is dependant on the chosen
speed unit of U.S. (mph) or Metric (km/h):
U.S. Speed (mph)
•Pressing the SET-button once will result ina1mph
decrease in set speed. Each subsequent tap of the
button results in a decrease of 1 mph.
•If the button is continually pressed, the set speed will
continue to decrease in 5 mph increments until the
button is released. The decrease in set speed is re-
flected in the EVIC/DID.
Metric Speed (km/h)
•Pressing the SET-button once will result in a 1 km/h
decrease in set speed. Each subsequent tap of the
button results in a decrease of 1 km/h.
•If the button is continually pressed, the set speed will
continue to decrease in 10 km/h increments until the
button is released. The decrease in set speed is re-
flected in the EVIC/DID.
NOTE:
•When you override and push the SET+button or SET
-buttons, the new Set Speed will be the current speed
of the vehicle.
•When you use the SET-button to decelerate, if the
engine’s braking power does not slow the vehicle
sufficiently to reach the set speed, the brake system
will automatically slow the vehicle.
200 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

•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
“BRAKE” will flash in the EVIC/DID and a chime will
sound while ACC continues to apply its maximum
braking capacity.
NOTE:The “Brake!” Screen in the EVIC/DID is a warn-
ing for the driver to take action and does not necessarily
mean that the Forward Collision Warning system is
applying the brakes autonomously.
Brake Alert
204 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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
In the event that 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 driver
will either have to press the RES (resume) button, or
apply the accelerator pedal to reengage the ACC to the
existing Set Speed.
NOTE:After the ACC system holds your vehicle at a
standstill for approximately 3 consecutive minutes, the
parking brake will be activated, and the ACC system will
be cancelled.
While ACC is holding your vehicle at a standstill, if the
driver seatbelt is unbuckled or the driver door is opened,
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 205