2009 Toyota Sienna Owners Manual - Page 227

2-4. Using other driving systems Selecting conventional fixed speed control mode Turn the "ON-OFF" button on. Push the button once more to deactivate. Vehicle-to-vehicle distance control mode is always reset when the engine switch is turned to the "ON" position. 2 When driving Switch to fixed speed control mode. (push and hold for approximately one second) n Driving in the selected cruise control mode Accelerate or decelerate to the desired speed and press the lever down to set. 199