PORSCHE Complaints

The tungsten carbide coating on the PSCB (Porsche Surface Coated Brake) rotors has failed at 44,000 miles. This is not normal wear. The Taycan’s regenerative braking system handles the substantial majority of deceleration under normal driving conditions, meaning the mechanical brakes on this vehicle have seen a fraction of the use they would on a comparable internal combustion vehicle at the same mileage. Coating failure under these conditions is consistent with a material or manufacturing defect. Porsche has issued Technical Service Bulletins addressing PSCB disc replacement on the 2020 Taycan, indicating this is a known issue. Porsche Cars North America was contacted twice requesting goodwill consideration and denied both requests, citing warranty expiration without addressing the vehicle’s braking profile or the existence of related TSBs. The cost of OEM PSCB rotor replacement is approximately $7,500–$10,000 including labor. No safety-equivalent aftermarket replacement exists for this proprietary system, leaving owners with no practical alternative to the full OEM repair cost.

While driving my 2023 Porsche Taycan under normal conditions, the plastic underbody protection panel on the bottom of the vehicle came loose and detached. The metal underneath the plastic panel is now visibly bent. I did NOT hit any object. There was NO impact. I did NOT hear or feel anything during driving. There were no warning lights, alarms, or messages on the dashboard. The first indication of any problem was discovering the detached plastic and bent metal after the fact. This is a serious safety concern because the underbody panel on the Taycan protects the high-voltage battery, battery cooling lines, and suspension components. Damage to these components can cause battery thermal events (fire risk), coolant leaks, or loss of vehicle control. PATTERN OF SIMILAR FAILURES: This is not an isolated incident. Other Porsche Taycan owners have reported nearly identical failures on public forums (TaycanForum), where the underbody protection panel was damaged or detached without any felt impact, no audible noise, and no warning. In at least one documented case, the resulting battery and coolant line inspection costs exceeded $70,000. Porsche's own internal tolerance for underbody panel deformation is extremely tight (3mm in the center zone), suggesting the design is vulnerable to routine road conditions and debris. SAFETY RISK: - Risk of high-voltage battery damage and thermal runaway / fire - Risk of coolant system failure - Risk of detached panel becoming road debris and causing crashes for following vehicles - No driver warning or indication when failure occurs VEHICLE INFORMATION: - Year: 2023 - Make: Porsche - Model: Taycan - VIN: VIN: [XXX] ION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The vehicle has now gone into Turtle Mode three times in the last month. Twice to dealership without fixing issue. Turtle mode renders the car undriveable. There is no propulsion, car won’t go over 20 mph

Seat belt and airbag indication lights and sound alarms remain on and notifying on the dashboard regardless of buckling. It will intermittently stop and start as the car is in motion. In the beginning, notification was present then resolved day-to-day. More recently, the alarm is present every drive. Driver was unsure whether or not the notifications were valid or not as the pattern of notification had little consistency. Dealership service later admitted that it was a faulty seat belt buckle and that part had failed internally, but refused to remedy it unless paid for. Car is essentially inoperable and unsafe until faulty buckle is replaced, as a faulty seat belt buckle can be fatal, with faulty implying a manufacturing issue and not of user misuse or abuse of systems. Manufacturer will not provide warranty and dealership continues to demand vehicle owner to pay.

sudden total drivetrain failure at 52k mi with no warning, child passenger, prior dealer-documented leak that was not escalated.

Both my rear break lights are showing stress cracks from movement of the frame of the body. There are other references to this happening online from other owners and it's a manufacturer defect. I brought to the dealer and was told that they should be replaced for $3000 each as they are allowing water to intrude and will cause a shorting out of the brake lights. No brake lights would be a major hazard. The cracks in both lights were not due to impacts. It is a design issue.

Passenger low beam headlight does not work. There is no “fault” message under “exterior lighting” indicating a problem with headlight.

The mapping system is out of date and tried to route me to an offramp that doesn't exist. I did some research and found the offramp changed over 4 years ago, roughly when the car was built. I took the car to my local dealership to get the maps updated and Porsche claims I have the latest map. I think this is a dangerous situation if someone tried to drift off the road in bad weather (for example) where an offramp doesn't exist. Their newer cars show the correct mapping. Porsche should be made to make the latest maps available to all their cars. It would cost them nothing if they simply posted the data on a website for a user to move it to a USB drive and plug it into the car.

The contact owns a 2023 Porsche Panamera. The contact stated that while stopped at a red traffic light, the vehicle independently shifted from drive(D) to neutral(N), and the instrument panel failed to display critical safety information. The messages "Speed Limit Display Limited”, “No Navigation Data Available", "Left Taillight Fault - Check Taillight", and "Right Taillight Error”, and “Service Necessary" were displayed. The vehicle was taken to a local dealer to be diagnosed; however, the failure was not duplicated. The CPU was replaced; however, the failure reoccurred. The manufacturer was made aware of the failure. The failure mileage was approximately 30,000.

While driving in traffic on a busy highway, I heard a loud clunk from the rear of the car and it instantly decelerated from 70+ miles per hour to 22 miles per hour, where it stayed and would not go faster. I had to get across 3 lanes of traffic to exit. Thereafter, the car would not move and had to be put on a flatbed to get to the Porsche dealer. Note that for 2 years prior the transmission had emitted a whine while in first gear. The dealership (Porsche Austin) said it was normal, but it is a known problem among owners, possibly related to the input shaft bearing. They did not fix it when the problem was first raised. The dealership has diagnosed it only as a transmission error, without providing further detail on what is actually wrong. I should be able to access my dash cam footage if helpful.