Buick 2010 Lacrosse Automobile User Manual


 
Driving and Operating 8-41
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WARNING
The Ultrasonic Rear Parking
Assist (URPA) system does not
replace driver vision. It cannot
detect:
.
Objects that are below the
bumper, underneath the
vehicle, or if they are too
close or far from the vehicle
.
Children, pedestrians,
bicyclists, or pets.
If you do not use proper care
before and while backing; vehicle
damage, injury, or death could
occur. Even with URPA, always
check behind the vehicle before
backing up. While backing, be
sure to look for objects and check
the vehicle's mirrors.
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.
When the distance is less than
30 cm (12 in.) the beeps are
continuous.
To be detected, objects must be at
least 20 cm (8 in.) off the ground
and below trunk level. Objects must
also be within 2.5 m (8 ft.) from the
rear bumper. The distance objects
can be detected may be less during
warmer or humid weather.
PARK ASSIST OFF displays on the
Driver Information Center (DIC) to
indicate that URPA is off. The
message disappears after a short
period of time.
Turning the System On and Off
The URPA system can be turned on
and off using the park assist button
located next to the shift lever.
The park assist button lights up
when the system is on and turns off
when it has been disabled.
URPA defaults to the on setting
each time the vehicle is started.