In the video that is going viral, one can see smoke coming out from the screeching tires before the vehicle hit the truck. https://insideevs.com/news/434522/video-tesla-crash-rear-violent The autopilot mode was allegedly being used by the driver of the car that collided with the truck. Tesla provides two modes in its electric cars, autopilot and self-driving mode. The Chiayi County Fire Bureau received reports at 6:40 am of a traffic accident involving a truck and a sedan in the southbound lanes at the 268.4 kilometer mark.

Security cameras watching a highway in Taiwan captured a Tesla Model 3 vehicle plowing into truck that was rolled over on its side. Tesla crashing into truck.
Traffic cameras captured the moment when a Tesla slammed into an overturned cargo truck in Taiwan early Monday morning. https://insideevs.com/news/392366/video-tesla-crash-truck-explosive The driver said the incident occurred while he was using Autopilot. A Tesla crashed into an overturned truck on National Highway 1 this morning, and the driver said the car was on autopilot at the time, according to reports in United Daily News, and Liberty Times today, June 1.