there is likely some secret squirrel manual that states how the system works, and other features of the highlander, like what can be turned off or on or adjusted like seatbelt buzzers and one touch unlock using the factory scan tool. when I worked for BMW there was a sheet the customer filled out selecting daytime running lights, one touch lock, seat and radio memory retainment for last key used, ect. the customer had to fill it out prior to inital delivery of the car so the preferances could be programmed...why doesnt Toyota do that??? and why do I have to call Toyota to figure out how this stuff operates? my owners manual needs to be way thicker with this info.