Buick Enclave 2008 Owner's Manual page 127

URPA operates only at speeds less than 5 mph
(8 km/h). If you are above this speed, the red light
on the rear display will flash.
To be detected, objects must be at least 10 inches
(25.4 cm) off the ground and below liftgate level.
Objects must also be within 8 feet (2.5 m) from your
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 20 inches (0.5 m) and 8 feet (2.5 m)
away. Beeping will occur for three seconds when
you are closer than 1 foot (0.3 m) from the object.
The following describes what will occur with the URPA
display as you get closer to a detected object:
Description
amber light
amber/amber lights
amber/amber/red lights
amber/amber/red lights
flashing and beep for
three seconds
The system can be disabled through the Driver
Information Center (DIC). See "Park Assist" under
DIC Operation and Displays on page 3-50 for more
information.
2-46
English Metric
8 ft 2.5 m
40 in 1.0 m
23 in 0.6 m
1 ft 0.3 m
When the System Does Not Seem to
Work Properly
•
The driver disables the system.
•
The parking brake pedal is depressed.
•
The ultrasonic sensors are not clean. Keep your
vehicle's rear bumper free of mud, dirt, snow,
ice and slush. For cleaning instructions, see
Washing Your Vehicle on page 5-92.
•
A trailer was attached to your vehicle, or a bicycle
or an object was hanging out of your liftgate
during your last drive cycle, the red light may
illuminate in the rear display. Once the attached
object is removed, URPA will return to normal
operation.
•
A tow bar is attached to your vehicle.
•
The vehicle's bumper is damaged. Take the vehicle
to your dealer/retailer to repair the system.
•
Other conditions may affect system performance,
such as vibrations from a jackhammer or the
compression of air brakes on a very large truck.
If the system is still disabled, after driving forward at
least 15 mph (25 km/h), take your vehicle to your
dealer/retailer.