[autogeek]

> to disable any built-in automated driving features in the car

Automatic Emergency Braking (AEB), which is the system that could have prevented this accident, is not an automated driving function though; it is an active safety function. As such, it is more common to stack such functions. For instance, ABS > AEB > automated driving, with the left most being the function with the highest priority, i.e., it can override the functions to the right. This is how most safety systems in cars work in production.