2007 GMC Savana Van Owner's Manual - Page 204

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 appears on the display after every press of the button. Once the complete message has 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. 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. 204