2005 Chevrolet Cobalt Owner's Manual - Page 172
2005 Chevrolet Cobalt Manual
Page 172 highlights
CD Messages CHECK DISC: If this message appears on the display and/or the CD comes out, it could be for one of the following reasons: If the CD is not playing correctly, for any other reason, try a known good CD. If any error occurs repeatedly or if an error cannot be corrected, contact your GM dealer. If the radio displays an error message, write it down and provide it to your GM dealer when reporting the problem. • It is very hot. When the temperature returns to normal, the CD should play. • You are driving on a very rough road. When the road becomes smoother, the CD should play. Theft-Deterrent Feature THEFTLOCK® is designed to discourage theft of your vehicle's radio. The feature works automatically by learning a portion of the Vehicle Identification Number (VIN). If the radio is moved to a different vehicle, it will not operate and LOCK or LOCKED will appear on the display. With THEFTLOCK® activated, the radio will not operate if stolen. • The CD is dirty, scratched, wet, or upside down. • The air is very humid. If so, wait about an hour and try again. • The format of the CD may not be compatible. See "MP3 Format" earlier in this section. • There may have been a problem while burning the CD. • The label may be caught in the CD player. 3-74