2009 Lincoln Navigator Owner's Manual - Page 271
2009 Lincoln Navigator Manual
Page 271 highlights
Driving The front sensors cover an area up to 27.6 inches (70 cm) from the front of the vehicle and about 6-9 in (15-23 cm) to the side of the front end of the vehicle. See the illustration for approximate sensor area coverage. The reverse sensing portion of the system detects obstacles up to 6 ft. (2 m) from the rear bumper with a decreased coverage area at the outer corners of the bumper, (refer to the illustration for approximate zone coverage areas). As you move closer to the obstacle, the rate of the tone increases. When the obstacle is less than 10 inches (25.0 cm) away, the tone will sound continuously. If the system detects a stationary or receding object further than 10 inches (25.0 cm) from the side of the vehicle, the tone will sound for only three seconds. Once the system detects an object approaching, the tone will sound again. While receiving a rear detection warning, the radio volume will be reduced to a predetermined level. After the warning goes away, the radio will return to the previous value. 271 2009 Navigator (nav) Owners Guide, 2nd Printing USA (fus)
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