2007 Toyota Sienna Owners Manual - Page 227

07 SIENNA_U (L/O 0612) If a vehicle is detected ahead of you- 2. Deceleration cruising function: If a slower moving vehicle is detected ahead of you, your vehicle cruising speed decreases within the range of about 40 km/h (25 mph) to about 135 km/h (85 mph). The display shows the preset speed, the detected vehicle ahead and selected vehicle−to−vehicle distance. If your vehicle gets closer to the vehicle ahead because of insufficient automatic deceleration, then the alarm warns you to also manually apply brakes. 3. Follow−up cruising function: After deceleration, your vehicle cruising speed changes in proportion to the speed of the vehicle ahead to maintain an appropriate distance from your vehicle to the vehicle ahead. The vehicle−to−vehicle distance can be changed. For details, see "CHANGING VEHICLE−TO− VEHICLE DISTANCE" on page 233. 4. Acceleration cruising function: If the vehicle ahead changes lanes, your vehicle cruising speed will be gradually increased up to the preset speed, and your vehicle resumes fixed−speed cruising. This system operates by detecting primarily the reflectors of the vehicle ahead. The distance may not be accurately or absolutely detected in the following cases: CAUTION To avoid accidents, always keep the laser radar sensor glass clean and never allow it to be covered with icicle or any substance, so it can detect the vehicle in front. (See "LASER RADAR SENSOR" on page 234.) D The vehicle ahead has higher ground clearance, which means that the placement of the reflectors is in a higher position. D The rear section of the vehicle ahead is extremely dirty. D The vehicle ahead or other vehicles around you are flinging up water or snow. D Excessive exhaust gas (black smoke) is coming from the vehicle ahead or other vehicles around you, obscuring your front view. D There is an obstruction (protective film, sticker, etc.) on the reflectors on the vehicle ahead, or reflectors are not installed on the vehicle ahead or are damaged. D Heavy luggage in the luggage compartment or rear seats is causing the nose of your vehicle to tilt up. 227 2007 SIENNA from Oct. '06 Prod. (OM45437U)