Honda CLARITY Plug-In Hybrid 2020 Owner's Manual page 415

The higher your vehicle's following-speed is, the longer the short, middle, long or
extra long following-interval becomes. See the following examples for your
reference.
Following-interval
Short
Middle
Long
Extra
Long
When your vehicle stops automatically because a vehicle detected ahead of you has
stopped, the interval between the two vehicles will vary based on the ACC with Low
Speed Follow interval setting.
When the Set Speed is:
50 mph (80 km/h) 65 mph (104 km/h)
83 feet
25 meters
1.1 sec
110 feet
33 meters
1.5 sec
154 feet
47 meters
2.1 sec
204 feet
62 meters
2.8 sec
uuWhen DrivinguAdaptive Cruise Control (ACC) with Low Speed Follow
100 feet
31 meters
1.1 sec
142 feet
43 meters
1.5 sec
200 feet
61 meters
2.1 sec
265 feet
81 meters
2.8 sec
Continued 413