System Usage Precautions - Jeep 2010 WK Grand Cherokee SRT8 Owner's Manual

122 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
Cleaning The Rear Park Assist
Clean the Rear Park Assist Sensors with water, car wash
soap and a soft cloth. Do not use rough or hard cloths. Do
not scratch or poke the sensors. Otherwise, you could
damage the sensors.

System Usage Precautions

NOTE:
• Ensure that the rear bumper is free of dirt and debris
to keep the Rear Park Assist System operating prop-
erly.
• Jackhammers, large trucks, and other vibrations could
affect the performance of the Rear Park Assist System.
• When you turn off the Rear Park Assist System, the
instrument cluster will display "PARK ASSIST DIS-
ABLED." Furthermore, once you turn off the Rear
Park Assist System, it remains off until you turn it on
again, even if you cycle the ignition key.
• When you move the shift lever to the REVERSE
position and the Rear Park Assist System is turned off,
the instrument cluster will display "PARK ASSIST
DISABLED" message for as long as the vehicle is in
REVERSE.
• The Rear Park Assist System, when on, will MUTE the
radio when it is sounding a tone.
• If a Rear Park Assist System malfunction occurs, a
single chime will sound once per ignition cycle. In
addition, the Electronic Vehicle Information Center
(EVIC) will display "SERVICE PARK ASSIST SYS-
TEM". If this occurs making sure the rear fascia/
bumper is free from snow, ice, mud, dirt and debris,
see your authorized dealer.