Clock - GMC 2012 Sierra Denali Owner's Manual

5-8 Instruments and Controls
To calibrate the compass, use the
following procedure:
Compass Calibration Procedure
1. Before calibrating the compass,
make sure the compass zone is
set to the variance zone in which
the vehicle is located. See
Compass Variance (Zone)
Procedure earlier in this
section.
Do not operate any switches
such as window, sunroof,
climate controls, or seats during
the calibration procedure.
2. Press the vehicle information
button until PRESS
CALIBRATE COMPASS
displays. Or, if the vehicle does
not have DIC buttons, press the
trip odometer reset stem until
CALIBRATE COMPASS
displays.
3. Press the set/reset button to
start the compass calibration. Or,
if the vehicle does not have DIC
buttons, press and hold the trip
odometer reset stem for
two seconds to start the
compass calibration.
4. The DIC will display
CALIBRATING: DRIVE IN
CIRCLES. Drive the vehicle in
tight circles at less than 8 km/h
(5 mph) to complete the
calibration. The DIC will display
CALIBRATION COMPLETE
for a few seconds when the
calibration is complete. The DIC
display will then return to the
TO
previous menu.

Clock

AM-FM Radio and AM FM
Radio with CD Player
To set the clock:
1. Turn the ignition key to ACC/
ACCESSORY or ON/RUN, then
O
press the button to turn the
radio on.
2. Press the button until the hour
numbers begin to flash, then
turn the knob to increase or
decrease the hour.
3. Press the button until the
minute numbers begin to flash,
then turn the knob to increase
or decrease the minutes.
4. Press the button until the
12HR or 24HR time format
begins to flash, then turn the
knob to change the time
format.