How do we keep the glitchy ones off the road? Extended return policy? Make the unit swappable/replaceable?
Unlike seatbelts or airbags where there is very little downside these can cause perfectly safe situations to turn into nasty accidents.
Only then can they determine what percentage of a specific emergency brake system's engagements actually make things more dangerous or are responsible for accidents.
Then they should hold the auto makers accountable, and require them to fix or replace fault vehicles
Treat a failure as a cause for vendor warranty. Either the vendor has to fix it, replace it or refund the car.