How The Backup Sensors Work - Acura MDX User's Information Manual

Backup Sensors
The sensors are ready for operation when the shift lever is moved to the reverse position.
The sensors operate by emitting ultrasonic waves. They calculate the distance between the rear bumper and
an obstacle by measuring the time the ultrasonic waves take to reach the sensor after being reflected by an
obstacle.
© 2006 American Honda Motor Co., Inc. - All Rights Reserved.

How the Backup Sensors Work

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