Honda Odyssey 2018 Owner's Manual page 574

uuWhen DrivinguAdaptive Cruise Control (ACC)
Determine the most appropriate following-interval setting based on your specific
driving conditions. Be sure to adhere to any following-interval requirements set by
local regulation.
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.
Vehicle Interval
Short
Middle
Long
Extra
Long
572
*
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
100 feet
31 meters
1.1 sec
137 feet
42 meters
1.5 sec
200 feet
61 meters
2.1 sec
265 feet
81 meters
2.8 sec