Clock - GMC 2011 Sierra 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 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.