Where is the TrailCheck pairing button? BMPRO Customer Support June 19, 2023 04:01 Updated The pairing button is located next to the cable, at the rear of the unit. Related articles How can I test to see if my TrailSafe is working properly? What does the red and green light on my SwayControl mean? How do I set the battery type I am using on the ProBoost? Why is my SwayControl not showing any light indicators? Does the TrailSafe meet Australian regulations for break-away systems? Comments 0 comments Please sign in to leave a comment.