display JEEP GRAND CHEROKEE TRAILHAWK 2017 User Guide

To Cancel
The following conditions cancel the system:
•The brake pedal is applied.
• The CANC button is pushed.
• An Anti-Lock Brake System (ABS) event occurs.
• The 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.
• The braking temperature exceeds normal range (over-
heated).
• A Trailer Sway Control (TSC) event occurs.
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) Cruise 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 instrument cluster display 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.

WARNING!(Continued)
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 driver’s preferred units can be selected through the
instrument panel settings if equipped. Refer to “Getting To
Know 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 instrument cluster display.
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.
• If the button is continually pushed, the set speed will
continue to increase in 10 km/h increments until the
button is released. The increase in set speed is reflected
in the instrument cluster display.
To Decrease Speed
While ACC is set, the set speed can be decreased by
pushing the SET (-)button.6
STARTING AND OPERATING 307

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 release. A
cancel message will display on the instrument cluster
display and produce a warning chime. Driver intervention
will be required at this moment.
While ACC with Stop is holding your vehicle at a stand-
still, if the driver seatbelt is unbuckled or the driver door is
opened, the ACC with Stop system will cancel and the
brakes will release. A cancel message will display on the
instrument cluster display and produce a warning chime.
Driver intervention will be required at this moment.

•When you turn ParkSense off, the instrument cluster
will display “PARKSENSE OFF” Furthermore, once you
turn ParkSense off, it remains off until you turn it on
again, even if you cycle the ignition.
• When you move the gear selector to the REVERSE
position and ParkSense is turned off, the instrument
cluster display will display “PARKSENSE OFF” mes-
sage for as long as the vehicle is in REVERSE.
• ParkSense, when on, will reduce the volume of the radio
when it is sounding a tone.
• Clean the ParkSense sensors regularly, taking care not to
scratch or damage them. The sensors must not be
covered with ice, snow, slush, mud, dirt or debris.
Failure to do so can result in the system not working
properly. The ParkSense system might not detect an
obstacle behind the fascia/bumper, or it could provide a
false indication that an obstacle is behind the fascia/
bumper.
• Use the ParkSense switch to turn the ParkSense system
off if objects such as bicycle carriers, trailer hitches, etc.
are placed within 12 inches (30 cm) from the rear
fascia/bumper. Failure to do so can result in the system
misinterpreting a close object as a sensor problem, causing the “PARKSENSE UNAVAILABLE SERVICE
REQUIRED” message to be displayed in the instrument
cluster display.
• ParkSense should be disabled when the liftgate is in the
open position and the vehicle is in REVERSE. An open
liftgate could provide a false indication that an obstacle
is behind the vehicle.

The system will then instruct the driver to check their
surroundings and move backward.
Your vehicle is now in the perpendicular park position.
When the maneuver is complete, the driver will be in-
structed to check the vehicle’s parking position. If the
driver is satisfied with the vehicle position, they should
shift to PARK. TheActive ParkSense Complete - Check
Parking Position message will be momentarily displayed.