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 8 km/h (5 mph). If the vehicle is above this speed, the red light on the rear display will flash.
To be detected, objects must be at least 25 cm (10 in) off the ground and below trunk level. Objects must also be within 2.5 m (8 ft) 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 1 m (40 in) and 2.5 m (8 ft) away.
Beeping will occur continuously when the vehicle is at 0.6 m (23 in) or closer to an object.
The following describes what will occur with the URPA display as the vehicle gets closer to a detected object:

The system can be disabled through the Driver Information Center (DIC). See “Park Assist” under DIC Operation and Displays for more information.
See also:
Disc Music Menu
Press the SELECT knob to access
the Disc music menu.
Turn the SELECT knob to scroll,
then press it to select any of the
following category buttons on the
MP3 music menu to display the
corre ...
Airbag Readiness Light
This light shows if there is an
electrical problem. The system
check includes the airbag sensor(s),
passenger sensing system, the
pretensioners, the airbag modules,
the wiring, and the crash ...
Potential Issues
Some OnStar services are disabled
after five days. OnStar cannot
perform Remote Door Unlock or
Stolen Vehicle Assistance after the
vehicle has been off continuously
for five days. After five ...
