2013 Toyota Tundra Double Cab Navigation Manual - Page 122

AUDIO/VIDEO SYSTEM D Laser products Do not take this unit apart or attempt to make any changes yourself. This is an intricate unit that uses a laser pickup to retrieve information from the surface of compact discs. The laser is carefully shielded so that its rays remain inside the cabinet. Therefore, never try to disassemble the player or alter any of its parts since you may be exposed to laser rays and dangerous voltages. (a) Speech command system U004AHNS NOTICE To prevent the battery from being discharged, do not leave the audio system on longer than necessary when the engine is not running. By pushing the switch above, you can operate the speech command system. For the operation of the speech command system and the list of commands, see pages 44 and 47. 146