Chevrolet Silverado Classic 2007 Owner's Manual page 310

RDS Messages
INFO (Information): If the current station has a
message, the information symbol appears 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 appears every three seconds.
To scroll through the message, press and release
the INFO button. A new group of words appear
on the display after every press of the button.
Once the complete message has been displayed,
the information symbol disappears 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.
310
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.
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 dealer.
Radio Messages for XM™ Only
See XM Radio Messages on page 331 later
in this section for further detail.
Playing a Cassette Tape
The tape player is built to work best with tapes
that are up to 30 to 45 minutes long on each
side. Tapes longer than that are so thin they
may not work well in this player. The longer
side with the tape visible should face to the right.