Chevrolet Impala Owner's Manual page 245

Increasing Speed While Using
Cruise Control
If the cruise control system is
already activated:
Press and hold the +RES button
until the desired speed is
reached, then release it.
To increase vehicle speed in
small increments, briefly press
the +RES button. For each
press, 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
until the desired lower speed is
reached, then release it.
To decrease the vehicle speed in
smaller increments, briefly press
the SET button. For each
press, 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. While
pressing the accelerator pedal or
shortly following the release to
override cruise control, briefly
applying the SET button will result
in cruise set to the current vehicle
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. 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.
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 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 is
erased from memory by pressing
or if the ignition is turned off.
Adaptive Cruise Control
If equipped, Adaptive Cruise Control
(ACC) allows the driver to select the
cruise control set speed and
following gap. Read this entire
section before using this system.
The following gap is the following
time between your vehicle and a
vehicle detected directly ahead in
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