How does the Ford S-Max's Lane Keeping Aid work?

I recently purchased a Ford S-Max and am curious about the Lane Keeping Aid feature. How does it work and how can I ensure it is functioning properly?

The Lane Keeping Aid feature in the Ford S-Max uses a camera to monitor lane markings and activates if you begin to drift out of your lane. It will gently steer you back into your lane.

To make sure your Lane Keeping Aid is working correctly, regularly check the camera and sensors for any dirt or debris that may interfere with its function. You can also test it out in a safe environment to ensure it is reacting appropriately.

Remember to always keep your hands on the wheel and actively steer in conjunction with the Lane Keeping Aid. It is meant to assist you, not replace your control of the vehicle.