2020 Porsche Taycan FORWARD COLLISION AVOIDANCE

On three separate occasions over the past year, my car's emergency collision avoidance system was triggered, (an alarm sounded, a red symbol was on my dash, and the brakes locked), erroneously. No accident occurred, but in the second case below, it caused the car behind me to lock up their brakes and just avoid hitting me...thankfully they were very alert. The first two occasions happened two months apart, but at the same time of day and at the same location. On both occasions, I had driven down a street at approximately 7:30 in the morning. I slowed to make a left turn and then came to a complete stop because traffic was coming in the opposite direction. There was also a car facing me in the alternate lane of the road that I was turning into. Once all oncoming traffic had passed, I pressed the accelerator to make a left turn and turned and moved forward just a few feet when the emergency collision avoidance system was triggered and the car's brakes locked. Within a few moments, the system released and I was able to drive on. Both situations were identical in location and the traffic situation was as I just noted in both cases. The most recent occasion that the system was triggered happened this week. I was in a right turn lane with a car in front of me and one or several cars behind me. I had come to a stop behind the car in front of me who was waiting to make a right turn onto the road. Our turn signal was red. Once the turn signal turned green, the car in front of me moved forward and made the right turn. I accelerated and went about 25 feet and was about to join the road when the collision avoidance system activated, (an alarm sounded, a red symbol was on my dash, and the brakes locked). The car behind me skidded to a stop, luckily without hitting me, and then my car's system released and allowed me to drive on. This must be happening to other users. If so, Porsche should be made aware and they should fix this.

Vehicle randomly thinks that I’m about to be in a collision when nothing is in front of me. This causes the vehicle to just stop and almost causes me to have an accident.

It was stop and go traffic. I was distracted and the car failed to auto stop and I hit the car in front of me. The alert did come on after the collision. I would assume the automatic braking failed or the collision would not have occurred. It was a low speed impact so not a major safety risk but even a minor collision can have a significant injury in susceptible subjects? The problem has not been reproduced to my knowledge. The component has not been inspected. The car has been evaluated by a body shop for damages and the damages are significant. The warning light came on in an inadequate time to prevent the collision. There were no other warning lamps

- Parking Assist has failed several times with message "ParkAssist not available. Continued driving possible, Service necessary" - Forward collision warning (aka Warning And Break Assist) has disabled itself several times for no apparent reason with message "WBA Limited, See owners manual". The sensors and windshield was clean so nothing was obstructing the system. - Headline Control error while driving with message "Headline control error. Temporary condition, Continued driving possible". ParkAssist and Forward collision unavailability has been reported to Porsche dealer but they were unable to diagnose or fix it. It seems the car does not record any error codes for the dealer to debug. There was a pending software updated at the time which was installed but the issues happen even after the updated. The issues started from first days of ownership and happen intermittently and stopping and restarting the car always fixes them which probably suggest they are software bugs. After the software update I have experienced an additional issue - Central computer (aka PCM) which controls everything in this car has frozen and restarted which leaves the driver with no ability to control any of the car's settings or systems.