2008 Toyota Land Cruiser Navigation Manual - Page 412
2008 Toyota Land Cruiser Manual
Page 412 highlights
OTHER FUNCTIONS D Automatic volume settings for high speed You can set the volume one step up when the speed is over 50 mph (80 km/h). (When it is under 43 mph (70 km/h), previous volume is back.) Each time you touch "Adaptive Volume Control", you can switch on or off. D Initializing the settings You can initialize the settings. Touch "Default". Touch "Yes". 146