Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
198
Driving and Operating
The ACC indicator displays on the
instrument cluster and Head-Up
Display (HUD). When ACC is active,
the indicator will be lit green.
Be mindful of speed limits,
surrounding traffic speeds, and
weather conditions when selecting
the set speed.
Resuming a Set Speed
If ACC is set at a desired speed and
then the brakes are applied, ACC is
disengaged without erasing the set
speed from memory.
To begin using ACC again, press
RES+ up briefly. The vehicle returns
to the previously set speed.
Increasing Speed While ACC is at
a Set Speed
Do one of the following:
.
Use the accelerator to get to the
higher speed. Press SET
–
down.
Release the control and the
accelerator pedal. The vehicle
will now cruise at the higher
speed.
When the accelerator pedal is
pressed, ACC will not brake
because it is overridden.
A warning message will appear
on the Driver Information Center
(DIC) and Head-Up
Display (HUD).
.
Press and hold RES+ up until
the desired set speed appears
on the display, then release it.
.
To increase vehicle speed in
small increments, briefly press
RES+. For each press, the
vehicle speed increases to the
next 1 km/h (1 mph) mark on the
speedometer.
When it is determined that there is
no vehicle ahead or the vehicle
ahead is beyond the selected
following gap, then the vehicle
speed will increase to the set speed.
Reducing Speed While ACC is at a
Set Speed
Do one of the following:
.
Use the brake to get to the
desired lower speed. Release
the brake and press SET
–
. The
vehicle will now cruise at the
lower speed.
.
Press and hold SET
–
down until
the desired lower speed is
reached, then release it.
.
To decrease the vehicle speed in
smaller increments, press SET
−
down briefly. For each press, the
vehicle speed decreases to the
next 1 km/h (1 mph) mark on the
speedometer.