Buick 2015 Regal Owner's Manual page 220

SET (Set/Coast): Press the
control down briefly to set the speed
and activate cruise control. If cruise
control is already active, use to
decrease vehicle speed.
(Cancel): Press to disengage
cruise control without erasing the
selected set speed.
Setting Cruise Control
If is on when not in use, SET or
RES+ could get bumped and go into
cruise when not desired. Keep
off when cruise is not being used.
1. Press the button to turn the
cruise system on.
2. Get up to the speed desired.
3. Press and release the SET
control on the steering wheel.
The desired set speed briefly
appears in the instrument panel
cluster.
4. Remove foot from the
accelerator.
The cruise control indicator on the
instrument cluster turns green after
cruise control has been set to the
desired speed. See Instrument
Cluster (Uplevel Cluster) on
page 5-12 or Instrument Cluster
(Base Level Cluster) on page 5-8.
Resuming a Set Speed
If the cruise control is set at a
desired speed and then the brakes
are applied or the
is pressed, the
cruise control is disengaged without
erasing the set speed from memory.
Once the vehicle reaches about
40 km/h (25 mph) or more, press
RES+ up briefly. The vehicle returns
to the previous set speed.
Increasing Speed While Using
Cruise Control
If the cruise control system is
already activated:
Press and hold RES+ up until
the desired speed is reached,
then release it.
Driving and Operating
To increase vehicle speed in
small increments, press RES+
up briefly. For each press, the
vehicle goes about 1.6 km/h
(1 mph) faster.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster
(Uplevel Cluster) on page 5-12 or
Instrument Cluster (Base Level
Cluster) on page 5-8. The increment
value used depends on the units
displayed.
Reducing Speed While Using
Cruise Control
If the cruise control system is
already activated:
Press and hold SET down until
the desired lower speed is
reached, then release it.
To slow down in small
increments, press SET down
briefly. For each press, the
vehicle goes about 1.6 km/h
(1 mph) slower.
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