2007 Lexus LS 460 Owners Manual - Page 500

3-8. Other interior features n Security code/locking your system The personal calling function can be locked using a 4-digit security code. While the system is locked, it is only possible to communicate with the Lexus Link Call Center. To turn on/off the security STEP 1 STEP 2 STEP 3 Press button. When the system responds with "Lexus Link ready", say "Security". When the system responds with "Enter first digit of code please", say your 4-digit code one digit at a time. After the fourth digit, the system responds with "Security (code ####) is now on/off". 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 • 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. 474