Model Y is equipped with an event data recorder (EDR).
The main purpose of an EDR is to record, in certain crash
or near crash-like situations, such as an air bag
deployment or hitting a road obstacle, data to better
understand how the vehicle's systems performed. The
EDR is designed to record
Autosteer and its associated functions are particularly
unlikely to operate as intended when:
Autosteer is unable to accurately determine lane
markings. For example, lane markings are excessively
worn, have visible previous markings, have been
adjusted due to road construction, are changing