Chevrolet 2011 Impala Owner's Manual page 242

9-34 Driving and Operating
Increasing Speed While Using
Cruise Control
If the cruise control system is
already activated:
Press and hold the +RES button
on the steering wheel until the
desired speed is reached, then
release it.
To increase vehicle speed in
small increments, press the
+RES button. Each time this is
done, the vehicle goes about
1.6 km/h (1 mph) faster.
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
lower speed desired is reached,
then release it.
To slow down in small amounts,
press the SET button 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 vehicle speed. When
you take your foot off the pedal,
the vehicle will slow down to the
cruise speed you set earlier.
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. When going up steep
hills, you might have to step on
the accelerator pedal to maintain
your speed. When going downhill,
you might have to brake or shift to
a lower gear to keep your speed
down. If the brakes are applied
the cruise control will turn off.
Ending Cruise Control
There are three ways to end cruise
control:
To disengage cruise control,
step lightly on the brake pedal.
Press the button on the
steering wheel.
To turn off the cruise control,
press the button on the
steering wheel.
Erasing Speed Memory
The cruise control set speed
memory is erased from memory
by pressing or if the ignition
is turned off.