Tesla Model S driver crashes into a van while on Autopilot [Video] I hope this thread is for educational purpose for those who are interested in Autopilot. It looks like the owner is posting the youtube publicly again. I may be wrong but this is my interpretation: This incidence involved 3 vehicles: 1-Tesla with the system locked onto Black Wagon that's leading the way 2-Black Wagon that leads Tesla the way. 3-Stopped Schubiger Van further ahead that the system never locked on because it already locked onto the Black Wagon The chronology: Tesla is happily following the Black Wagon that's leading the way. The system locks onto it tightly and wouldn't let go until the collision in this case. The Black Wagon is happily leading the way and saw the Stopped Schubiger Van further ahead. The Black Wagon carefully slowed down. The Tesla also carefully slowed down. The purpose of the Black Wagon to slow down was to straddle the two lanes in order to pass the Stopped Schubiger Van further ahead. The purpose of the Tesla in slowing down was to adjust the constant distance to the car that it has locked onto which is the Black Wagon as it is designed. Once the Black Wagon has passed and cleared the Stopped Schubiger Van, it speeds up to get back to the correct lane. The Tesla noticed that the Black Wagon speeds up, so it faithfully speeds up as designed to keep a constant distance to the car that it has locked on which is the the Black Wagon. And in so doing, Tesla collided with the Stopped Schubiger Van which it has never locked on before. It is not designed to lock on the Stopped Schubiger Van but it is designed to keep following the leader which is the Black Wagon so there's no reason for it to keep distance for this case. The owner seems to indicate that manual brake was applied but it's too late because of trusting the system that works 1,000 times before so there's no reason to distrust it in this case. If so, manual brake would disable the Autopilot. Thus, technically, this is not an Autopilot crash because at the moment of the crash, it was manually disabled (again by the act of manual braking.) Manually disabled crash was also described in Lebec, CA because the driver also manually applied the brake. Whether a crash was under "Autopilot" or not when the collision occured (due to manual applying the brake in each case) is another academic and legal discussion but the fact still is: Autopilot was initially enabled and trusted to work in each case. So what has gone wrong in this case? According to Tesla design: Nothing! That is what it is designed to do in this case. And it faithfully executed according to its design in this collision perfectly. The manually clearly states that it: “Warning: Traffic-Aware Cruise Control can not detect all objects and may not brake/decelerate for stationary vehicles, especially in situations when you are driving over 50 mph (80 km/h) and a vehicle you are following moves out of your driving path and a stationary vehicle or object, bicycle, or pedestrian is in front of you instead. Always pay attention to the road ahead and stay prepared to take immediate corrective action. Depending on Traffic-Aware Cruise Control to avoid a collision can result in serious injury or death. In addition, Traffic-Aware Cruise Control may react to vehicles or objects that either do not exist or are not in the lane of travel, causing Model S to slow down unnecessarily or inappropriately.” This kind of collision can be replicated consistently according to the manual. So it is up to a driver to read the manual and prepare in such as this scenario. About the driver's points: 1. The TACC, active cruise control did not brake as it normally does 2. The automatic braking system (AEB) did not make an emergency brake 3. The forward collision warning turned on way too late, it was set to normal warning distance 4. The TACC actually was speeding up just before I did hit the brakes I think we covered them all in here and in the other case in Lebec, CA, so there's no need to repeat unless there's still a repetition need.