2008 Toyota Tundra Owners Manual - Page 440

07 11.20 For vehicles sold in Canada This ISM device Canadian ICES−001. complies with In the following cases, the system may not work properly. The system may not detect the following. D When ice, snow, mud or other objects build up on the sensor D When the vehicle is parked in extremely high or extremely low temperature for a long period D Thin objects such as a wire or rope D Objects with a surface area too small to reflect ultrasonic waves wire gauze or fence rial such as cotton or snow such as D When driving on bumpy or graveled roads or on grass D Sound wave absorbing objects or mateD A person near the vehicle (depending on the type of clothes worn) D When a device such as a horn from another vehicle, motorcycle engine, or an air brake sound from a heavy −duty vehicle, issues ultrasonic waves, near your vehicle D Objects with a sharp edge D Small or short objects D Tall objects with an upper part projecting toward the vehicle D When attaching a two−way radio antenna D When rain or water splashes on the sensor D When operating the vehicle on an inclined surface D Objects just under the bumper D Objects very close to your vehicle D When the bumper is damaged In the following cases, have Toyota dealer check the system. your D When a radio antenna or fender pole is mounted on your vehicle D When a towing hitch is mounted on your vehicle D When the bumper is damaged D When the indicator is continuously on D When a towing eyelet is mounted on your vehicle 410 D When the tail−gate is opened D When the bumper is damaged 2008 TUNDRA from Apr. '08 Prod. (OM34477U)