book.book Page 17 Friday, July 19, 2013 12:53 PM Park Assist CAUTION: Keep sensors clean from dirt, Other Parking Aids debris, snow, and ice. Avoid using a high In addition to Park Assist, when shifted into pressure power washer on the sensors Reverse gear, the backup camera displays a and do not clean a sensor with a sharp or view of the area behind Model S. See abrasive object that can scratch or page4.24. damage its surface. CAUTION: Do not install accessories or stickers on or near the parking sensors. Controlling Audible Feedback You can use Park Assist with or without audible feedback. To turn chimes on or off, touch Controls > Settings > Safety & Security > Park Assist Chimes. You can also mute the chimes temporarily by pressing the scroll wheel on the left side of the steering wheel. The chimes are muted until you shift into a different gear or drive over 4.8 km/h. Limitations and False Warnings The parking sensors may not function correctly in these situations: • One or more of the parking sensors is damaged, dirty, or covered (such as mud, ice, or snow). • Object is located below approximately 20cm (such as a curb or low barrier). • Weather conditions (heavy rain, snow, or fog) are interfering with sensor operation. • Object is thin (such as a sign post). • A sensor’s operating range has been exceeded. • Object is sound-absorbing or soft (such as powder snow). • Object is sloped (such as a sloped embankment). • Model S has been parked in, or is being driven in, extremely hot or cold temperatures. • The sensors are affected by other electrical equipment or devices that generate ultrasonic waves. • Object is located too close to the bumper. • A bumper is misaligned or damaged. • An object that is mounted to Model S is interfering with and/or obstructing the sensor (such as a bike rack or a bumper sticker). DRIVING 4.17