The owners manual states that for the Forward Automatic Braking (FAB) to work, the Forward Collision Alert (FCA) system must detect a vehicle ahead and display the little green car symbol on the driver's display. The manual also states that the green indicator will turn amber if following a vehicle too closely.
It does not define what "Too closely" really is.
I am curious to know from others that have the Adaptive Cruise Control (ACC) , FAB and FCA systems on their vehicles, at approximately what distance does the green indicator turn amber, when you approach a vehicle in front of you? My question applies only to when the ACC is not engaged (like in city type driving).
The reason for my question is with my Yukon, while performing a test, I have to be less (much less) that a car length from the vehicle in front of me before I can get it to turn amber.
On a previous vehicle, a 2014 Acadia Denali, whenever I got within 2 car lengths of the vehicle in front of me, the indicator turned amber. Granted, the Acadia did not have the Forward Braking or Adaptive Cruise Control, but it did have Forward Collision Alert.
Thanks for any replies.
