GMC 2018 Acadia Denali Owner's Manual page 229

228 Driving and Operating
exited a sharp curve, then the
vehicle speed will increase to the
set speed.
Increasing Speed While ACC is at
a Set Speed
If ACC is already activated, do one
of the following:
Use the accelerator to get to the
higher speed. Press SET .
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. The
ACC indicator on the instrument
panel will turn blue.
Press and hold RES+ until the
desired set speed appears on
the display, then release it.
To increase vehicle speed in
small increments, press RES+ to
the first detent. For each press,
the vehicle goes 1 km/h (1 mph)
faster.
To increase vehicle speed in
larger increments, press RES+
to the second detent. For each
press, the vehicle speed
increases to the next 5 km/h
(5 mph) mark on the
speedometer.
The set speed can also be
increased while the vehicle is
stopped.
If stopped with the brake
applied, press RES+ until the
desired set speed is displayed.
If ACC is holding the vehicle at a
stop and there is another vehicle
directly ahead, pressing RES+
will increase the set speed.
Pressing RES+ when there is no
longer a vehicle ahead will
cause ACC to resume.
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.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 0 120.
The increment value used depends
on the units displayed.
Reducing Speed While ACC is at a
Set Speed
If ACC is already activated, 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 until the
desired lower speed is reached,
then release it.
To decrease the vehicle speed in
smaller increments, press SET
to the first detent. For each
press, the vehicle goes about
1 km/h (1 mph) slower.
To decrease the vehicle speed in
larger increments, press SET
to the second detent. For each
press, the vehicle speed