Cadillac 2009 owner manual How the System Works, Description English Metric

How the System Works

URPA comes on automatically when the shift lever is moved into R (Reverse). The rear display briefly illuminates to indicate the system is working.

URPA operates only at speeds less than 5 mph

(8 km/h). If the vehicle is above this speed, the red light on the rear display will flash.

To be detected, objects must be at least 10 inches (25.4 cm) off the ground and below tailgate level. Objects must also be within 8 feet (2.5 m) from the rear bumper. This distance may be less during warmer or humid weather.

A single beep will sound the first time an object is detected between 40 inches (1 m) and 8 feet (2.5 m) away. Beeping will occur continuously when the vehicle is at 23 inches (0.6 m) or closer to an object.

The following describes what will occur with the URPA display as the vehicle gets closer to a detected object:

Description	English	Metric
amber light	8 ft	2.5 m
amber/amber lights	40 in	1.0 m

Description	English	Metric
amber/amber/red lights
and continuous beeping	23 in	0.6 m
for five seconds
amber/amber/red lights
flashing and continuous	1 ft	0.3 m
beeping for five seconds
	The system can be
	disabled by pressing the
	rear park aid disable button
	located next to the radio.

The indicator light will come on and PARK ASSIST OFF displays on the Driver Information Center (DIC) to indicate that URPA is off, see DIC Warnings and Messages on page 3-48for information about clearing the message.

Notice: If you use URPA while the tailgate is lowered, it may not detect an object behind your vehicle, and you might back into the object and damage your vehicle. Always verify the tailgate is closed when using URPA or turn off URPA when driving with the tailgate lowered.

2-51