Does 2018 MDX have parking sensors?
The Advance Package includes front and rear parking sensors. When the MDX approaches a vehicle or object detected in the front or rear, a beep sounds in the cabin and indicators appear in the upper display. The beep sounds more rapidly as you get closer to the object. via
How do I know if my parking sensor is working? (video)
https://www.youtube.com/watch?v=bHidVYgR97g