2009 Toyota Sequoia Owners Manual - Page 236

2-4. Using other driving systems CAUTION n When the laser radar sensor may not be correctly detecting the vehicle ahead l The vehicle ahead has higher ground clearance, which means that the placement of the reflectors is in a higher position. l The rear section of the vehicle ahead is extremely dirty. l The vehicle ahead or other vehicles around you are flinging up water or snow. l Excessive exhaust gas (black smoke) is coming from the vehicle ahead or other vehicles around you, obscuring your front view. l 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. l Heavy luggage in the luggage compartment or rear seats is causing the nose of your vehicle to tilt up. l Vehicles that cut in suddenly l Vehicles traveling at low speeds l Vehicles that are not moving l Vehicles with small rear ends (trailers with no load on board etc.) l Motorcycles traveling in the same lane n Conditions under which the vehicle-to-vehicle distance control may not function correctly Apply the brakes as necessary in the following conditions as the laser radar sensor may not be able to correctly detect vehicles ahead, and an accident may result. l When water or snow thrown up by the surrounding vehicles hinders the functioning of the sensor l When your vehicle is pointing upwards (caused by a heavy load in the luggage compartment, etc.) l When the road curves or when the lanes are narrow l When steering wheel operation or your position in the lane is unstable l When towing a trailer 202