The system has three alert stages for a possible collision. However, depending on circumstances, the CMBSTM may not go through all of the stages before initiating the last stage.
Honda Civic Owners Manual. Limitations for Manual Operation
Certain manual functions are disabled or inoperable while the vehicle is in
motion.
You cannot select a grayed-out option until the vehicle is stopped.
Only previously stored speed dial entries can be called using voice commands
while
the vehicle is in motion.
HFL Status Displ ...