2012 Toyota Prius Owners Manual - Page 1104

2-4. Using other driving systems Press the "ON-OFF" button to activate the cruise control. Press the button again to deactivate the cruise control. Switch to constant speed control mode. (Push the lever forward and hold for approximately 1 second.) Cruise control 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. 237 Canceling and resuming speed setting: →P. 239 the 2 When driving 243 PRIUS v_U (OM47784U)