Acura 2015 RLX Owner's Manual page 361

uuWhen DrivinguAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
The higher your selected set speed is, the longer the short, middle, long or extra long
following distance becomes. See the following examples for your reference.
Following Distance
Short
Middle
Long
Extra
Long
360
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
I n f o r ma t i o n P r o v i d e d b y :
*
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