Unless the app changed in the past year, they can see individual tips and can change their passenger ratings for those who don't pay the "optional" tip. Source

Unless the app changed in the past year, they can see individual tips and can change their passenger ratings for those who don't pay the "optional" tip. Source: https://www.reddit.com/r/uber/comments/18x5rxj/do_drivers_see_which_rider_tips_them/ https://www.reddit.com/r/uber/comments/18x5rxj/do_drivers_se...