Jeep Grand Cherokee 2016 Owner's Manual page 248

246 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
• Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense.
• 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 shift lever to the REVERSE
position and ParkSense is turned off, the instrument
cluster will display "PARKSENSE OFF" 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 or in front of the fascia/bumper, or it
could provide a false indication that an obstacle is
behind or in front of 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 in (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 instru-
ment cluster.
• ParkSense should be disabled when the liftgate is in
the open position. An opened liftgate could provide a
false indication that an obstacle is behind the vehicle.