Jeep 2009 Grand Cherokee SRT - Owner Manual - Manual (Page 147)

REAR PARK ASSIST SYSTEM — IF EQUIPPED
The Rear Park Assist System provides visible and audible
indications of the distance between the rear fascia and the
detected obstacle when backing up. Refer to the Warning
Section and Note Section for limitations of this system
and recommendations.
The Rear Park Assist System will remember the last
system state (enabled or disabled) from the last ignition
cycle when the ignition is changed to the ON position.
The Rear Park Assist System can be active only when the
shift lever is in REVERSE. If the Rear Park Assist System
is enabled at this shift lever position, the system will be
active until the vehicle speed is increased to approxi-
mately 11 mph (18 km/h) or above. The system will be
active again if the vehicle speed is decreased to speeds
less than approximately 10 mph (16 km/h).
Rear Park Assist Sensors
The four Rear Park Assist Sensors, located in the rear
fascia, monitor the area behind the vehicle that is within
the sensors’ field of view.
The sensors can detect obstacles from approximately 12
to 59 in (30 to 150 cm) from the rear fascia in the
horizontal direction, depending on the location and
orientation of the obstacle and the type of obstacle.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 145
3