2007 Chevrolet Uplander Owner's Manual - Page 293

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 your 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. If the radio displays an error message, write it down and provide it to your dealer when reporting the problem. Playing a CD (Single CD Player) Insert a CD partway into the slot, label side up. The player pulls it in and the CD should begin playing. If the ignition or radio is turned off with a CD in the player, it stays in the player. When the ignition or radio is turned on, the CD starts playing where it stopped, if it was the last selected audio source. When a CD is inserted, CD and the CD symbol appears on the display. As each new track starts to play the track number appears 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. If playing a CD-R, the sound quality (and playback performance) may be reduced due to the CD-R quality, method of recording, the quality of the music that has been recorded, and the way the CD-R has been handled. For better playback performance when home burning audio discs, use brand named CD media showing the Compact Disc™, and a burn rate no faster than 12X. 293 Radio Messages for XM™ Only See XM Radio Messages on page 307 later in this section for further detail.