Reverse With Confidence
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Surface anomalies in sensor field of view
Large objects attached to the side of the vehicle or other large surface anomalies, such as the
wheel well near the sensor, may cause reflections to the sensor resulting in false alarms. The
wheel well it may have reflections from the shape of the wheel well or also the rotation of the
wheel will look like objects traveling toward the sensor. To avoid this, be sure that objects are
away from the viewing angle of the sensor and the wheel well is not in the viewing angle. The
viewing angle of the sensor is a total of 40° or 20° on both sides of the
horizontal line going from the sensor toward that back (see illustration).
With the wheel well, be sure that the viewing angle does not overlap it in any way. You may adjust
the height or move the sensor slightly back if needed. It is recommended to have the sensor as
forward as possible while avoiding the wheel well and staying near the preferred height.
Steel Screws
Occasionally, the steel screws may cause a problem. Sometimes the environment where the
sensor is mounted plus the steel screws will result in signal reflections that are just right that
they cause the system to give false alarms.
To test for this, remove the steel screws and use double sided tape to attach the sensors. Drive
the vehicle and test to see if the problem clears. If it does, the false alarms may be caused by the
steel screws. Replace the screws with #4-40 x 1” (length) nylon machine screws, #4-40 nylon hex
nuts, and #4 nylon washers.
This is very rare and should always be tested as prescribed above before using nylon fasteners.