Tesla has rolled out a software update for its in-car navigation system in China, offering new features such as displaying lane markings on its maps that correspond to the actual lanes on the road. The company aims to reduce users' reliance on smartphone applications while driving. Although Tesla did not specify the provider of the lane-related mapping service, it was reported that Baidu is the map supplier, with the Baidu Maps V20 introducing lane-level navigation to enhance driving safety and experience. Chinese users have expressed concerns about the level of detail in Tesla's in-car navigation map compared to smartphone maps. Meanwhile, Tesla is in the process of introducing its 'Full Self-Driving' software system in China, using cameras as sensors for its autonomous driving technology. This move comes as the company prepares to register this advanced feature with authorities. Unlike high-definition maps used as an additional sensor for autonomous driving cars, navigation maps have been widely used in China to provide traffic information to human drivers.