""" These events occur typically when a vehicle is partially in a lane and radar has to ignore a stationary object. This is pretty standard and inherent with TACC + radar.
The faster Tesla pushes the vision only stack to all cars after they’ve validated the data, the faster this topic becomes moot. Andrej Karpathy talks and shows examples of what that would do here. Minutes 23:00-28:00 https://youtu.be/a510m7s_SVI
Older examples from manuals of other TACC systems which use radar:
Volvo’s Pilot Assist regarding AEB/TACC.
According to Wired, Volvo’s Pilot Assist system is much the same. The vehicles’ manual explains that not only will the car fail to brake for a sudden stationary object, it may actually race toward it to regain its set speed:
“Pilot Assist will ignore the stationary vehicle and instead accelerate to the stored speed. The driver must then intervene and apply the brakes.”
Cadillac Super Cruise - Page 252
Stationary or Very Slow-Moving Objects
ACC may not detect and react to stopped or slow-moving vehicles ahead of you. For example, the system may not brake for a vehicle it has never detected moving. This can occur in stop-and-go traffic or when a vehicle suddenly appears due to a vehicle ahead changing lanes. Your vehicle may not stop and could cause a crash. Use caution when using ACC. Your complete attention is always required while driving and you should be ready to take action and apply the brakes.
BMW Driving Assistant Plus - Page 124
A warning may not be issued when approaching a stationary or very slow-moving obstacle. You must react yourself; otherwise, there is the danger of an accident occurring.
If a vehicle ahead of you unexpectedly moves into another lane from behind a stopped vehicle, you yourself must react, as the system does not react to stopped vehicles. """