GMC Sierra 2500 HD 2024 Owner's Manual page 245

: Press to disengage ACC without erasing
the selected set speed.
: Press to select a following gap setting
for ACC of Far, Medium, or Near.
The speedometer reading can be displayed
in either English or metric units. See
Instrument Cluster (Base Level) 0 112 or
Instrument Cluster (Uplevel) 0 113. The
increment value used depends on the units
displayed.
Switching Between ACC and Regular Cruise
Control
To switch between ACC and regular cruise
control, press and hold . A Driver
Information Display (DIC) message displays.
See Vehicle Messages 0 139.
ACC Indicator (Base ACC Indicator (Uplevel)
Level)
Regular Cruise Control Indicator
When ACC is engaged, a green
indicator will be lit on the instrument cluster
and the following gap will be displayed.
When the regular cruise control is engaged,
a green indicator will be lit on the
instrument cluster; the following gap will
not display.
When the vehicle is turned on, the cruise
control mode will be set to the last mode
used before the vehicle was turned off.
Warning
Always check the cruise control indicator
on the instrument cluster to determine
which mode cruise control is in before
using the feature. If ACC is not active, the
vehicle will not automatically brake for
other vehicles, which could cause a crash
Driving and Operating
Warning (Continued)
if the brakes are not applied manually.
You and others could be seriously injured
or killed.
Setting Adaptive Cruise Control
If is on when not in use, SET /RES+
or
could be pressed by mistake and engage
ACC when not desired. Keep
cruise is not being used.
Select the set speed desired for ACC. This is
the vehicle speed when no vehicle is
detected in your path.
While the vehicle is moving, ACC will not set
at a speed lower than 5 km/h (3 mph),
although it can be resumed. The minimum
allowable set speed is 25 km/h (15 mph).
To set ACC while moving:
1. Press
2. Get up to the desired speed.
3. Press and release SET .
4. Remove foot from the accelerator.
After ACC is set, it may immediately apply
(Continued)
the brakes if a vehicle ahead is detected
closer than the selected following gap.
243
off when
.