2012 Lexus HS 250h Owners Manual - Page 223

2-4. Using other driving systems Selecting conventional constant speed control mode Constant speed control mode differs from vehicle-to-vehicle distance control mode. When constant speed control mode is selected, your vehicle will maintain a set speed regardless of whether or not there are other vehicles in the lane ahead. Press the "ON-OFF" button to activate the cruise control. Press the button again to deactivate the cruise control. 2 When driving Switch to constant speed control mode. (Push the lever forward and hold for approximately one second.) Constant speed control mode indicator will come on. When in constant speed control mode, to return to vehicle-to-vehicle distance control mode, push the lever forward again and hold for approximately 1 second. After the desired speed has been set, it is not possible to return to vehicle-to-vehicle distance control mode. If the "POWER" switch is turned off and then turned to ON mode again, the vehicle will automatically return to vehicle-to-vehicle distance control mode. Adjusting the speed setting: →P. 218 Canceling and resuming the speed setting: →P. 214 223