Certain Ford vehicles were equipped with proximity sensors that detect objects within 6’ of the vehicle and within 18” on either side of the bumper. When those conditions occur, the system sets off an audible warning.

If you’re having a problem with the system accidentally setting off the audible alarm, Ford wants you to check for a blocked or contaminated sensor surface. Ford informs us that there is a gap between the sensor membrane and the plastic housing and that gap must remain clear. Any contamination in this space can result in a continuous or intermittent tone. Ford recommends cleaning with a high pressure spray.

In addition to a sensor blocked with debris, Ford also notes that very wet weather conditions, such as mist, frost, or snow may result in erroneous warnings. Also, external ultrasonic noise may set off the system and this is considered normal.

If you have any body work done on vehicles with these systems, make sure you or the body shop properly masks off the sensors to prevent contamination.

For more information on this repair or any others for your vehicle, buy an online subscription to either Alldatadiy.com or eautorepair.net. Click on this link to compare the two services: Compare Alldata and Eautorepair.

If you just need information for a single repair and want to save money,eautorepair offers a lower price 1-week subscription for only $11.99. Or, if you’ll be working on this vehicle in the future, you can buy a 1-year subscription (Alldatadiy.com for $26.99, or eautorepair.net $29.99)

© 2007 Rick Muscoplat

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