A brand new study that was put together and uploaded in late October, called "You Can't See Me: Physical Removal Attacks on LiDAR-based Autonomous Vehicles Driving Frameworks" made the revelation, which was also reported on by Cosmos Magazine. 

Researchers in the U.S. and Japan found that vehicles could be tricked into not seeing pedestrians (or other objects in their way) using lasers. These cars, which use LiDAR to sense objects around them, send out laser lights and then use the reflection back to judge how far away objects are.

The study revealed that a perfectly timed laser shone back into a LiDAR system can create "a blind spot large enough to hide an object like a pedestrian," according to Cosmos.