2004 Toyota 4Runner Navigation Manual - Page 154

4Runner_Navi_U (L/O 0308) Audio remote controls (e) If the player malfunctions If "CD ERROR" appears on the screen, audio signals of the disc cannot be read or the system has trouble. Push the "DISC" button once again. If the player does not operate, check that the disc surface is not soiled or damaged. If the disc is O.K., the temperature of the player's internal mechanism may be raised because of high external temperature. Remove the disc from the player to cool it. If the player still does not operate, have it checked by your Toyota dealer. 146 2004 4RUNNER Navigation from Aug. '03 Prod. (OM35813U)