Honda Civic Owners Manual: Lane Departure Warning Function

Lane Keep Support Function

Provides assistance to keep the vehicle in the center of the lane. When the vehicle nears a white or yellow line, steering force of the electric power steering will become stronger. ...

When the System can be Used

The system can be used when the following conditions are met.  The lane in which you are driving has detectable lane markers on both sides, and your vehicle is in the center of the lane. ...

See also:

Honda Civic Owners Manual. Phone Setup
To pair a cell phone (when there is no phone paired to the system)  Select Phone.  Select Yes.  Make sure your phone is in search or discoverable mode, then select Continue.  HFL automatically searches for a Bluetooth device.  Select your phone w ...