How the System Works
URPA comes on automatically when the shift lever is moved into R (Reverse). A single tone sounds to indicate the system is working.
URPA operates only at speeds less than 8 km/h (5 mph).
An obstacle is indicated by audible beeps. The interval between the beeps becomes shorter as the vehicle gets closer to the obstacle. A continuous tone is heard when the distance is less than 30 cm (12 in).
To be detected, objects must be at least 25 cm (10 in) off the ground and below liftgate 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.
See also:
Service Bulletins
Service Bulletins give additional
technical service information
needed to knowledgeably service
General Motors cars and trucks.
Each bulletin contains instructions
to assist in the diagnosis ...
Remote Keyless Entry (RKE) System Operation (Keyless Access)
The Keyless Access System
transmitter will work up to 60m
(195 ft) away.
The Keyless Access System locks
and unlocks the doors and trunk
without pressing the buttons on
the keyless access t ...
Compass
The vehicle may have a compass display on the Driver Information Center
(DIC). The compass receives its heading and other information from the Global
Positioning System (GPS) antenna, StabiliTrak, a ...