When downshifting and just before Coming to a complete stop and vehicle lurches/surges forward even though my foot is on the brake pedal. This happens in every drive mode with or without Autostart/stop engaged. It is Significantly challenging in stop and go traffic because it-??s difficult to gage when the car will come to a complete stop. I have to make accommodation for the car lunging forward which is unpredictable because sometimes it-??s a subtle surge forward and other times I have no control or idea how far forward the car is going to move. This makes this is especially dangerous when cars are quickly changing lanes in front of me in stop and go traffic during rush hour. Emergency braking DOES not help this! I have experience this. The collision warning Went off in the car and emergency braking was engaged just at the Knick of time! Adverse weather conditions could have easily made that a very bad accident. I should be able to Do normal every day driving And stopping, for example stopping to a red light, or stop and go traffic without having to activate emergency functions in my car and putting myself at unnecessary risk because of a -??glitch-?? with Porsche. This normal every day driving. I returned my car to the dealership who told me it-??s normal performance for this car along with. I along with many other owners have researched this and found out that software upgrades have been done to correct this problem which are not available yet in the United States. This issue needs to be resolved immediately to prevent potential accidents.

- Irving , TX, USA

My Porsche 2020 S has breaking issues when in sport mode. When the car downshifts from 3rd to 2nd gear, and 2nd to 1st gear, this is a sudden jolt forward or "lurging" that occurs every time. This is a safety risk in bumper to bumper traffic as the car can suddenly jump forward a few feet more than intended by normal breaking. Even when driving and breaking explicitly to compensate for this transmission / breaking defect, the lurging issue cannot be avoided. The only way to avoid this issue is to (a) break hard from 3rd to 1st gear (so from a fairly high speed down to 0, which lends additional breaking safety risks in non-ideal weather conditions such as breaking downhill or on wet / icy roads), or (B) to not drive the car in one of the two driving modes offered. The manufacturer's service department claims there is no issue, but some quick google searches show this issue is experienced widely and well documented, and a software fix has been rolled out overseas that isn't available in North America

- Austin, TX, USA

The car came with a factory installed tow system. I returned it to the dealer three times and it does not work properly. I was shocked plugging in a tester to the 7 way connector. The dealer service manager advised me that I was not shocked and states that the lights stating the 7 way connector is normal. This is not normal. When I connect a digital break controller or 7 pin cable with a trailer the car doesn't not communicate with the break controller. The break controller expert stated that since no diode was showing when I plug the car in that this indicates the brakes are not wired correctly. The dealership says since another car works the same as mine they don't think it is a issue. Corporate Porsche is unable to advise on technical service bulletins or information on a wiring harness to enable a wired break controller. I took the car over to uhaul and did remote calls with the brake controller manufacturer. All state that it is something with the manner it is wired with a 'open ground'. this is unsafe as I have no way safely brake or utilize a brake controller. Since other 2020S behave the same way this is a systemwide issue and the manufacturer is not taking action so it should be evaluated by engineering.

- West Chester, OH, USA