There are 6 owner-reported driver assist & adas complaints for the 2020 Porsche Taycanin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
This vehicle can not be driven on straight roads of freeways without the "take over steering warning" engaging. This is problematic, this morning on icy roads driving on straight roads the warning engaged, braked and cut power and put the vehicle into a slid on icy roads. This warning also happen frequently on freeway driving, suddenly braking and almost causing drivers behind the vehicle to react to the sudden braking putting this vehicle in jeopardy of rear end collisions or other possible accidents.
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
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.
The backup camera is highly distorted and it is difficult to see what is in the distance (more than 10 ft) from the rear of the car. I have had multiple incidents where I almost hit someone who was walking up the street past my driveway entrance. The other problem is when you turn the backup camera turns, and there is no frame of reference left so it is extremely distorted and hard to figure out where things are at. I have a Mercedes GLS450 and the backup cameras clearly show the street at the end of our driveway. I've attached comparison views of the street from our garage using the Porsche and Mercedes cameras. This backup camera is hazardous to the safety of anyone walking across the backup path of this car, and this issue needs to be addressed immediately. There is just no excuse to have such a poor quality camera on any car. By the way this car cost $50,000 more than my Mercedes!!
- 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.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026