Kanyoni-Ka-JAH @SteveChegge While driving behind a trailer and you are unable to overtake it good trailer driver will assist you overtake by communicating to you with tail lights.if he indicates right,he is telling you don't overtake,if he indicates left,he is telling you that it's safe to overtake. 12.37 PM Jan 25, 2022 Twitter for Android 1,594 Retweets 90 Quote Tweets 5,347 Likes