Black plate (9,1)
GMC Sierra Owner Manual - 2011
Instruments and Controls
5-9
4. To increase the time or date, do
one of the following:
.
Press the softkey below the
selected tab.
.
Press the
¨
SEEK button.
.
Press the
\
FWD button.
.
Turn the
f
knob clockwise.
5. To decrease the time or date, do
one of the following:
.
Press the
©
SEEK button.
.
Press the
s
REV button.
.
Turn the
f
knob
counterclockwise.
To change the time default setting
from 12 hour to 24 hour or to change
the date default setting from month/
day/year to day/month/year:
1. Press the
H
button and then the
softkey located below the
forward arrow tab. 12H, 24H, the
date MM/DD (month and day),
and DD/MM (day and month)
displays.
2. Press the softkey located below
the desired option.
3. Press the
H
button again to
apply the desired option, or let
the screen time out.
MP3 Radio with a Six-Disc CD
Player
To set the time and date:
1. Turn the ignition key to ACC/
ACCESSORY or ON/RUN, then
press the
O
button to turn the
radio on.
2. Press the MENU button and
then the softkey under the
H
tab
to display HR, MIN, MM, DD,
YYYY (hour, minute, month, day,
and year).
3. Press the softkey located under
any one of the tabs to change
that setting.
