The disclosure includes embodiments for providing a graphical overlay depicting lane lines to a vehicle including an augmented reality (“AR”) viewing device. A method according to some embodiments includes determining whether environment data indicate that a driver of a vehicle can identify lane lines on a road in front of the vehicle. The method includes responsive to the environment data failing to indicate that the driver of the vehicle can identify the lane lines, generating line data based on the environment data and global positioning system (GPS) data. The method includes generating AR data based on the line data. The method includes providing the AR data to the AR viewing device. The method includes determining based on head position data associated with the AR viewing device, to instruct the AR viewing device to display a graphical overlay depicting the lane lines.