Finally found the green bars on either side of the driver display in the manual: Eco Assist® System Ambient Meter ● Changes color to reflect how fuel-efficiently you are driving. Green: Slow acceleration or deceleration (good fuel economy) White-green: Moderate acceleration or deceleration (moderate fuel economy) White: Aggressive acceleration or deceleration (poor fuel economy) ● The indicator remains red as long as SPORT mode is activated. Before I found them in the Clarity PHEV owner's manual, I watched a Honda YouTube video on the Clarity Hydrogen fuel cell "coaching bars". hmm, so they don't work in sport (always red). Now I may need to try eco or norm just to try them out ...