Tesla doesn't use LIDAR. Many of his competitors do.
https://techcrunch.com/2019/04/22/anyone-relying-on-lidar-is-doomed-elon-musk-says/
“Lidar is a fool’s errand,” Elon Musk said. “Anyone relying on lidar is doomed. Doomed! [They are] expensive sensors that are unnecessary. It’s like having a whole bunch of expensive appendices. Like, one appendix is bad, well now you have a whole bunch of them, it’s ridiculous, you’ll see.”
The company today detailed its current generation self-driving computer that works with all existing Tesla vehicles. Once the software is ready, it will enable all Teslas to drive autonomously with their existing sensor set — at least that’s what the company says — and that sensor set doesn’t include lidar. Instead, the sensors inside Tesla vehicles lean on a neural network that’s trained by data collected by all Tesla vehicles.
https://techcrunch.com/2019/04/22/anyone-relying-on-lidar-is-doomed-elon-musk-says/