We just traded our 2018 for a 2020 Touring Clarity last Friday. Everything is pretty much identical to the 2018 but my wife and I noticed the ACC is not working properly on downhills. Unless someone has wisdom on the subject I believe it is faulty and will schedule a Honda service visit to see if they can resolve it. The 2018 Clarity would quite nicely control the down slope speed if the ACC is on and set to the desired speed. The 2020 Clarity maintains speed, or will slow due to a slower car ahead, but does not limit downhill to the set speed. Conditions: - SOC is about 50% - ACC is on and set to 45mph - ACC distance adjust is set to one bar - There are no other cars on the road - Regen is working as we go down the hill. The power gauge is into the regen area. - The car is not in traditional Cruise Control mode. At the top of the 1/2 mile long hill the car is going 45mph. The speed begins to increase and about 55mph we feel it is necessary to apply the brakes. I rebooted the system. I turned Main off and on to see if it would reset things. I read the manual which clearly indicates the set speed should be maintained on downhill slopes unless the slope is too great in which case the ACC would switch off (and beep I think). Does anyone have a similar issue or a fix?