Buick TERRAZA 2006 Owner's Manual page 161

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).
URPA can be turned off by
pressing the rear park aid
disable switch located
in the overhead console
switchbank. While the
system is disabled,
an indicator light will be lit
on the switch. You will
not see any lights on the
rear display if the switch is
in the off position.
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
amber light
amber/amber lights
amber/amber/red lights &
continuous chime
amber/amber/red lights
flashing & continuous
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.
English Metric
5 ft 1.5 m
40 in 1.0 m
20 in 0.5 m
1 ft 0.3 m
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