Michelle Fitzsimmons:

Toyota has some autonomous driving tech to show off at CES 2016 next month, but it may make some uneasy.
 The company will unveil a new mapping technology that relies on production model self-driving cars’ cameras and GPS to take real-time images of roads as well as vehicle positioning information.
 “An understanding of road layouts and traffic rules (including speed limits and various road signs) is essential for the successful implementation of automated driving technologies,” Toyota notes in its release. “Additionally, high precision measurement of positional information requires the collection of information on dividing lines, curbs and other road characteristics.”