QUOTE(BGLister @ Oct 13 2008, 12:43 PM)

Thanks for the command list. I treid to control the Climate Control by voice on my 2007 RX350 - but to no avail. It just looks for POIs that it thinks sound the same. Its a mystery to me that in the 2006 RX sales brochure, it says it has voice command for the climate - but perhaps that is just a mistake. Nothing in the owners manual about it that I could find.
I have had a GS450h for two years since October 06, but I doubt they have changed the feature, or that it would differ with an RX.
The climate control voice functions are fairly limited. You can set the temp, e.g "climate control temprature 21 degrees" or switch the A/C on or off "automatic air conditioning on/off". I think there may also be a command to set temp to low or high.
In any case when the vehicle is stationary press the voice activation button and say "help" that will bring up on the screen a full list of functions grouped into categories such as NAV DESTINATION PHONE etc etc and then you can scroll down the screen to list all the functions.
I have had voice activation since 1999 on a Jaguar S-Type and subsequent Jaguar models, and compared with the functionality on those the Lexus system is fairly limited. For example the Jaguar would allow you to dail a phone number, attach name tags to preset radio stations, and select a particular disc or track from the CD changer.
One tip regarding the Lexus system, its quite sensative to picking up certain commands correctly seemingly a common issue amongst all makes of car with this feature, with the Lexus it has trouble with the command "map", I find its best to say the words in a soft voice.
Regards
Keith