Cadillac 2004 SRX - Manual (Page 145)

The URPA display is
located inside the vehicle,
above the liftgate glass.
It has three color-coded
lights that can be seen
through the rearview mirror
or by turning around.
How the System Works
URPA comes on automatically when the shift lever is
moved into REVERSE (R) and the vehicle speed is
less than 3 mph (5 km/h). 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 &
continuous chime
20 in. 0.5 m
amber/amber/red lights
flashing & continuous
chime
1 ft 0.3 m
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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