Black plate (7,1)
GMC Sierra Owner Manual - 2011
Infotainment System
7-7
3. Adjust the setting by doing one
of the following:
.
Turn the
f
knob clockwise
or counterclockwise.
.
Press the
¨
SEEK,
or
©
SEEK.
.
Press the
\
FWD,
or
s
REV.
To quickly adjust all speaker and
tone controls to the middle position,
press the
f
knob for more than
two seconds.
If the Rear Seat Audio (RSA) is
turned on, the radio disables FADE
and mutes the rear speakers.
Radio Messages
Calibration Error:
The audio
system has been calibrated
for the vehicle from the factory.
If Calibration Error displays, it
means that the radio has not been
configured properly for the vehicle
and it must be returned to your
dealer for service.
Locked or Loc:
One of these
messages will display when the
THEFTLOCK
®
system has locked
up the radio. Take the vehicle to
your dealer for service.
If any error occurs repeatedly or if
an error cannot be corrected,
contact your dealer.
Radio
AM-FM Radio
Radio Data System (RDS)
For radios with the Radio Data
System (RDS) feature, it only works
with FM stations that broadcast
RDS information. This system relies
upon receiving specific information
from these stations and only works
when the information is available.
While the radio is tuned to an
FM-RDS station, the station name
or call letters will display. In rare
cases, a radio station could
broadcast incorrect information that
causes the radio features to work
improperly. If this happens, contact
the radio station.
