GMC 2007 Acadia Owner's Manual page 195

CAUTION:
{
The Ultrasonic Rear Park Assist (URPA)
system does not replace driver vision.
URPA does not:
•
Operate above speeds of
5 mph (8 km/h).
•
Detect objects more than 8 feet
(2.5 meters) behind the vehicle. This
distance may be less during warmer
or humid weather.
•
Detect objects that are below the
bumper, underneath the vehicle, or
that are very close to the vehicle.
•
Detect children, pedestrians,
bicyclists, or pets.
So if you do not use proper care before
backing up, you could hit a vehicle, child,
pedestrian, bicyclist, or pet, resulting in
vehicle damage, injury, or death. Even
though the vehicle has the URPA system,
always check carefully before backing up
by checking behind your vehicle.
The URPA display has three color-coded lights.
The lights are used to provide distance and system
information, along with beeps that will be heard
through the speakers.
The red light in the URPA display will be lit if the
vehicle is in REVERSE (R). If the vehicle has a
Driver Information Center (DIC), PARK ASSIST
OFF will display on the DIC when the vehicle has
been started and shifted out of PARK (P). See DIC
Warnings and Messages on page 244 for more
information.
How the System Works
When the shift lever is moved into REVERSE (R),
the rear display will briefly come on to let you
know the display is operating correctly. URPA
comes on automatically when the shift lever
is moved into REVERSE (R).
The URPA display is
located in the headliner
and can be seen by
looking over your right
shoulder.
195