GMC 2016 Sierra Owner's Manual page 308

SET (Set/Coast) : Press 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
set speed from memory.
Setting Cruise Control
If is on when not in use, SET or
+RES could get pressed and go into
cruise when not desired. Keep
off when cruise is not being used.
1. Press to turn the cruise
system on.
2. Get up to the desired speed.
3. Press and release SET .
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. SeeInstrument
Cluster 0 130.
Resuming a Set Speed
If the cruise control is set at a
desired speed and then the brakes
are applied or is pressed, the
cruise control is disengaged without
erasing the set speed from memory.
Once the vehicle speed reaches
about 40 km/h (25 mph) or more,
press the +RES button 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 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.
Driving and Operating
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 0 130.
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 the SET button
until the desired lower speed is
reached, then release it.
To slow down in small
increments, briefly press the
SET button. For each press,
the vehicle goes about 1.6 km/h
(1 mph) slower.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 0 130.
The increment value used depends
on the units displayed.
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to
increase the vehicle speed. When
you take your foot off the pedal, the
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