2016 JEEP GRAND CHEROKEE SRT Owners Manual

ADAPTIVE CRUISE CONTROL (ACC) — IF
EQUIPPED
Adaptive Cruise Control (ACC) increases the driving
convenience provided by cruise control while traveling
on highways and major roadways. However, it is not a
safety system and not designed to prevent collisions.
Electronic Speed Control function performs differently.
Please refer to the proper section within this chapter.
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.
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.
NOTE: Normal (fixed speed) electronic speed control
will not react to preceding vehicles. Always be aware of
the mode selected.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 191

You can change the mode by using the Cruise Control
buttons. The two control modes function differently.
Always confirm which mode is selected.
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.
(Continued)
WARNING! (Continued)
•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).
• 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 2 seconds in the stop position. If the target
vehicle does not start moving within two seconds
the ACC system will display a message that the
system will release the brakes and that the
(Continued)
192 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!(Continued)
brakes must be applied manually. An audible
chime will sound when the brakes are released.
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).
• 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.
Adaptive Cruise Control (ACC) Operation
The speed control buttons (located on the right side of the
steering wheel) operates the ACC system.
Adaptive Cruise Control Buttons
1 — Normal (Fixed Speed)
Cruise Control On/Off 5 — Distance Setting Increase
2 — SET+/Accel 6 — Adaptive Cruise Control (ACC) On/Off
3 — RES/Resume 7 — Distance Setting Decrease
4 — SET-/Decel 8 — CANC/Cancel
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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 Driver Information Display (DID) displays “ACC
Ready.”
When the system is OFF, the DID displays “Adaptive
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.
To Activate/Deactivate
Push and release the Adaptive Cruise Control (ACC)
ON/OFF button. The ACC menu in the DID displays
“ACC Ready.”
194 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

To turn the system OFF, push and release the Adaptive
Cruise Control (ACC) ON/OFF button again. At this
time, the system will turn off and the DID will display
“Adaptive Cruise Control (ACC) Off.”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
(Continued)
Adaptive Cruise Control ReadyAdaptive Cruise Control Off
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 195

WARNING!(Continued)
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 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 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 pushed.
• An Anti-Lock Brake System (ABS) event occurs.
• The gear selector is removed from the Drive position.
196 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

•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 pushed.
• The Normal (Fixed Speed) Electronic Speed Control
ON/OFF button is pushed. •
The ignition is turned OFF.
• You switch to Four-Wheel Drive Low.
To Resume
If there is a set speed in memory push the RES (resume)
button and then remove your foot from the accelerator
pedal. The DID will display the last set speed.
NOTE:
•If your vehicle stays at standstill for longer than two
seconds, then the system will cancel and the brake
force will be ramped-out. The driver will have to apply
the brakes to keep the vehicle at a standstill.
• ACC cannot be resumed if there is a stationary vehicle
in-front of your vehicle in close proximity.3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 197

WARNING!
The Resume function should only be used if traffic
and road conditions permit. Resuming a set speed
that is too high or too low for prevailing traffic and
road conditions could cause the vehicle to accelerate
or decelerate too sharply for safe operation. Failure to
follow these warnings can result in a collision and
death or serious personal injury.
To Vary The Speed Setting
To Increase Speed
While ACC is set, you can increase the set speed by
pushing the SET+button.
The drivers preferred units can be selected through the
instrument panel settings if equipped. Refer to “Under-
standing Your Instrument Panel” for more information. The speed increment shown is dependant on the chosen
speed unit of U.S. (mph) or Metric (km/h):
U.S. Speed (mph)
•
Pushing the SET +button once will result ina1mph
increase in set speed. Each subsequent tap of the
button results in an increase of 1 mph.
• If the button is continually pushed, the set speed will
continue to increase in 5 mph increments until the
button is released. The increase in set speed is reflected
in the DID.
Metric Speed (km/h)
• Pushing the SET +button once will result in a 1 km/h
increase in set speed. Each subsequent tap of the
button results in an increase of 1 km/h.
198 UNDERSTANDING THE FEATURES OF YOUR VEHICLE