Object Detection Systems; Ultrasonic Parking Assist - GMC 2011 Sierra Denali Owner's Manual

Ending Cruise Control
There are three ways to end cruise
control:
To disengage cruise control;
step lightly on the brake pedal.
Press on the steering wheel.
To turn off the cruise control,
press on the steering wheel.
Erasing Speed Memory
The cruise control set speed is
erased from memory by pressing
the button or if the ignition is
turned off.
Object Detection
Systems

Ultrasonic Parking Assist

For vehicles with the Ultrasonic
Rear Parking Assist (URPA) system,
it operates at speeds less than
8 km/h (5 mph), and assists the
driver with parking and avoiding
objects while in R (Reverse). The
sensors on the rear bumper are
used to detect the distance to an
object up to 2.5 m (8 ft) behind the
vehicle, and at least 25.4 cm (10 in)
off the ground.
Driving and Operating
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 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.
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