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. Rear Seats
Folding Down the Rear Seats 1. Pull the release lever in the trunk to release the lock. 2. Fold the seat-back down. The rear seat-back(s*) can be folded down to accommodate bulkier items in the trunk. Never drive with the seat-back folded down and the trunk lid open. Exhaust Gas Ha ...