GMC 2007 Sierra 1500 Pickup Owner's Manual page 324

RDS Messages
INFO (Information): If the current station has a
message, INFO will appear on the display.
Press this button to see the message. The
message may display the artist, song title, call in
phone numbers, etc.
If the entire message is not displayed, parts of the
message will appear every three seconds. To scroll
through the message, press and release the INFO
button. A new group of words will appear on the
display after every press of this button. Once the
complete message has been displayed, INFO will
disappear from the display until another new
message is received. The last message can be
displayed by pressing the INFO button. You can
view the last message until a new message is
received or a different station is tuned to.
Radio Messages
CAL ERR (Calibration Error): The audio system
has been calibrated for your vehicle from the
factory. If CAL ERR appears on the display, it
means that the radio has not been configured
properly for the vehicle and must be returned to
your dealer for service.
324
LOCKED: This message is displayed when the
®
THEFTLOCK system has locked up. Take
the vehicle to your dealer for service.
If any error occurs repeatedly, or if an error cannot
be corrected, contact your GM dealer.
Radio Messages for XM™ Only
See XM Radio Messages on page 332 later in this
section for further detail.
Playing a CD
If the ignition or radio is turned off, with a CD in
the player, it will stay in the player. When the
ignition or radio is turned on, the CD will
start playing where it stopped, if it was the last
selected audio source.
When a CD is inserted, the CD symbol will appear
on the display. As each new track starts to play,
the track number will appear on the display.
The CD player can play the smaller 3 inch (8 cm)
single CDs with an adapter ring. Full-size CDs
and the smaller CDs are loaded in the same
manner.