Buick 2005 manual How the System Works, Description English Metric

URPA can be turned off by pressing the rear park aid disable switch located

in the instrument panel switchbank. When

the system is disabled, an indicator light will glow on the switch. You will not see any lights on the rear display if the switch is in the off position.

How the System Works

Unless disabled, the URPA will turn on automatically when the shift lever is moved into REVERSE (R). When the system turns on, the three lights on the display

will illuminate for one and a half seconds to let you know that the system is working. If your vehicle is moving in REVERSE (R) at a speed greater than 3 mph (5 km/h), the red light will flash to remind you that the system does not work at speed greater than 3 mph (5 km/h).

If an object is detected at a REVERSE (R) speed of less than 3 mph (5 km/h), one of the following will occur:

Description	English	Metric
amber light	5 ft	1.5 m
amber/amber lights	40 in	1.0 m
amber/amber/red lights &	20 in	0.5 m
continuous chime
amber/amber/red lights
flashing & continuous	1 ft	0.3 m
chime

A chime will sound the first time an object is detected between 20 inches (0.5 m) and 5 feet (1.5 m) away.

URPA cannot detect objects that are above liftgate level. In order for the rear sensors to recognize an object, it must be within detection range behind the vehicle.

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