GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Instruments and Controls
125
Compass
The vehicle may have a compass
display on the Driver Information
Center (DIC). The compass receives
its heading and other information
from the Global Positioning
System (GPS) antenna,
StabiliTrak
®
, and vehicle speed
information.
The compass system is designed to
operate for a certain number of
miles or degrees of turn before
needing a signal from the GPS
satellites. When the compass
display shows CAL, drive the
vehicle for a short distance in an
open area where it can receive a
GPS signal. The compass system
will automatically determine when a
GPS signal is restored and provide
a heading again. See
Compass
Messages
0
154
for the messages
that may be displayed for the
compass.
Clock
Setting the Time and Date with
Faceplate Controls
To set the time or date:
1. Select SETTINGS from the
Home Page, then select Time
and Date.
2. Select the desired function.
3. Turn the MENU knob to
increase or decrease the value.
4. Press the MENU knob to go to
the next value. After the last
value is selected, the system
will update and return to the
Settings menu. Press
o
BACK
to go to the last menu and
save the changes.
Auto Set requires an OnStar
subscription.
If auto timing is set, the time
displayed on the clock may not
update immediately when driving
into a new time zone.
To set the clock display:
1. Select SETTINGS from the
Home Page, then select Time
and Date.
2. Select Clock Display.
3. Turn the MENU knob to Off
or On.
4. Press the MENU knob to
select.
Press
o
BACK to go to the last
menu and save the changes.
Setting the Time and Date with
Touchscreen Controls
To set the time:
1. Touch the SETTINGS screen
button from the Home Page,
then touch Time and Date.
2. Touch Set Time and touch
«
or
ª
to increase or decrease
hours, minutes, and AM or PM.
Touch 12
–
24 Hr for 12 or
24 hour clock.
3. Touch the
}
or
0
screen
button to go back to the
previous menu.
