GMC Sierra 2011 Owner's Manual page 355

Reducing Speed While Using
Cruise Control
If the cruise control system is
already activated,
Press and hold the SET button
on the steering wheel until the
desired lower speed is reached,
then release it.
To slow down in small amounts,
press the SET button on the
steering wheel briefly. Each time
this is done, the vehicle goes
about 1.6 km/h (1 mph) slower.
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to
increase the vehicle speed. When
you take your foot off the pedal, the
vehicle will slow down to the
previous set cruise speed.
Using Cruise Control on Hills
How well the cruise control will work
on hills depends upon the vehicle
speed, load, and the steepness of
the hills. While going up steep hills,
you might have to step on the
accelerator pedal to maintain the
vehicle speed. While going downhill,
you might have to brake or shift to a
lower gear to keep the vehicle
speed down. When the brakes are
applied the cruise control is
disengaged.
I n f o r ma t i o n P r o v i d e d b y :
Driving and Operating
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.
9-73