2007 Lexus GS 350 Owners Manual - Page 428

3-7. Other interior features n Speech recognition information The Lexus Link speech recognition systems use speech technology that is designed to understand a wide range of speakers of American English. However, the technology may not work as well if a regional or ethnic accent is encountered. If the speech recognition system does not work properly, refer to the following. l The system does not recognize your command properly if noise is preset. Per- form the following to improve voice command recognition. Turn down or off the air conditioning system. Slow down to reduce wind noise. Close the windows and the moon roof to block outside noise. Have all occupants be quiet so that the system does not recognize their conversation as a command. l When to speak Say a command within 5 seconds after the system prompts you to speak. l How to speak 3 Interior features • Speak forcefully and clearly. • Speak calmly and naturally. • The driver should speak while facing forward, and the passenger should speak facing the inside rear view mirror. • Avoid speaking with a rising intonation. Use a flat or falling intonation. l Tips for one-word commands • The system recognizes only one word at a time for personal calling. (There are some exceptions, such as "Advanced services" and "My number".) • When inputting the security codes or voice-activated keypad number, you must say them one digit at a time. When inputting a phone number, the speech recognition system can recognize 7, 10, and 11-digit numbers as well as the number 911. 353