Buick LaCrosse Owner's Manual page 317

SET/ (Set/Coast): Move the
thumbwheel down to set the speed
and activate cruise control or make
the vehicle decelerate.
Setting Cruise Control
If the cruise button is on when not in
use, it could get bumped and go into
cruise when not desired. Keep the
cruise control switch off when cruise
is not being used.
1. Press to turn the cruise
control system on. The indicator
light in the instrument panel
cluster comes on.
2. Get to the speed desired.
3. Move the thumbwheel down
toward SET/ and release it.
The desired set speed briefly
appears in the instrument panel
cluster.
4. Take your foot off the accelerator
pedal.
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, move the
thumbwheel up toward RES/+
briefly. The vehicle returns to the
previous set speed and stays there.
Increasing Speed While Using
Cruise Control
If the cruise control system is
already activated:
Move the thumbwheel up toward
RES/+ and hold it until the
vehicle accelerates to the
desired speed, and then
release it.
To increase the speed in small
amounts, move the thumbwheel
up toward RES/+ briefly, then
release it. Each time this is
done, the vehicle goes about
1.6 km/h (1 mph) faster.
Driving and Operating
Reducing Speed While Using
Cruise Control
If the cruise control system is
already activated:
Move the thumbwheel toward
SET/ and hold until the desired
lower speed is reached, then
release it.
To slow down in small amounts,
move the thumbwheel toward
SET/ briefly and then release it.
Each time this is done, the
vehicle goes about 1.6 km/h
(1 mph) slower.
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