2020 Porsche Taycan electrical problems

Filed Aug 10, 2026 · Brakes, Electrical · FL

Three the federal safety agency safety recalls are open and unremedied on my 2020 Porsche Taycan 4S: 25V896 (high-voltage battery — cell-module short circuit / fire risk), 24V732 (battery inspection, cell-module replacement, software update), and 24V455 (front brake hoses — cracking and brake-fluid leakage). Open status is confirmed by the manufacturer's own lookup at [XXX] as of XXX. The recalls cannot be completed because the manufacturer's authorized network refuses to confirm or schedule the work. The vehicle originated in the US and is now registered in [XXX]. In December 2025 the authorized dealer (Winner Porsche Center Kyiv Airport) refused, stating recalls are performed only for vehicles originally sold on the local market. I escalated to Porsche AG in XXX; the case was reviewed by Porsche Central and Eastern Europe and the official importer. After inspecting the vehicle in XXX, the dealer tried to condition recall work on my acceptance of unrelated paid repairs, and in XXX stated in writing that it reserves the right to refuse manufacturer campaigns due to "existing defects," without identifying any technical dependency between the cited findings and the recall work (brake-hose replacement and battery inspection/software are unaffected). A final written request with a 10-business-day deadline expired in XXX with no response from any Porsche entity. Safety risk: a battery fire risk and reduced front-brake performance remain unremedied on a vehicle in regular daily use. No warning lamps or symptoms; the risk arises from the unrepaired recall defects themselves. The refusal is confirmed in the dealer's written statements and documented in correspondence with Porsche AG, available on request. The vehicle is available for inspection upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 27, 2026 · Electrical · MA

I own a 2020 Porsche Taycan 4S (in service Nov 2, 2020) with a performance+ HV battery. I am currently facing a third round of module replacements. The service chronology and detail is set forth in the attached e-mail I sent to Porsche and the attached service reports. The safety concern I have is that when the defective modules fail, the vehicle suddenly becomes inoperable. The last failure incident in April 2026 resulted in the vehicle blocking in two other vehicles until it could be removed on a flatbed. I simply do not feel safe driving a vehicle that could shut down whenever the next module failure happens. There are 33 modules in the HV battery. 15 have been replaced already and it is clearly an ongoing issue as the vehicle is currently in service for a third round of module replacement after the vehicle shut down only 4 months and less than 2,000 driving miles after the previous module replacement. As a result of my increasing safety concerns, I requested Porsche replace the entire obviously defective HV battery. As set forth in the attached response, it refused to do so, stating that the "path forward remains continued diagnosis and repair in accordance with Porsche’s technical guidelines." My belief, and I know I am not the only one based on my review of Taycan message boards, is that Porsche is slow playing how it addresses what is a clear defect in many HV batteries to get to the end of the 8-year battery warranty by doing periodic piecemeal module replacements and then taking the position that post-warranty module issues are an "aging" problem for which Porsche is not responsible.Â

Filed Jun 25, 2026 · Acceleration, Electrical · CT

While driving my Porsche Taycan through a high-speed intersection, the vehicle suddenly displayed battery and chassis system error messages instructing me to pull over immediately. Before I could safely move the vehicle to the side of the road, it completely lost propulsion, speed control, and steering capability, causing the vehicle to abruptly slow to 0 mph in active traffic and leaving me stranded in the middle of the roadway. This created an immediate safety hazard, as approaching vehicles nearly collided with my car because it effectively performed an unexpected emergency stop without warning. Approximately one month earlier, the vehicle experienced the exact same failure while parked, displaying battery and chassis errors and losing power and steering functionality. The vehicle was towed to an authorized Porsche dealership, where it remained for approximately one month; however, the dealer was unable to diagnose the problem and returned the vehicle to me, stating that no fault could be found. Just two days after the vehicle was returned, the identical failure occurred again while I was driving. After restarting the vehicle multiple times at the roadside, I was eventually able to move it to a safer location, where it failed again shortly thereafter. The vehicle is currently at the Porsche dealership and is available for inspection. The dealership has indicated that the issue may be related to the high-voltage battery but has not yet identified the root cause or completed repairs. The only prior warning of this defect was the nearly identical battery and chassis system failure that occurred approximately one month before this incident.

Filed Apr 29, 2026 · Electrical, Fuel system · NJ

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

Filed Apr 20, 2026 · Electrical, Engine · CT · fire

There are .recalls.on the Vehicle I had been unaware of and I dropped off my vehicle for exterior buffing while person Buffing vehicle he heard a loud explosion and when he looked the vehicle was up in flames the vehicle burned. There was a Risk of someone getting Harm , Killed and Damages to other vehicles on the property in same lot vehicle was being buffed . Police and Fireman were dispatch to location.

Filed Mar 26, 2026 · Electrical · CA

I was charging at a Tesla Supercharge using the OEM Porsche converter and my car experienced a catastrophic electrical fault. The charge completed but the charger was hard to pull out and then my car had battery fault errors and said it needed immediate service. I took it to the dealer and they pulled these error codes and said severage battery componets had failed including a failed high-voltage battery controller, which is mounted on top of the HV battery and the high-voltage booster (which distributes DC voltage). Porsche is not claiming responsibility and presented me a $17k bill to replace. I'm concerned the temp sensors went off and that this could have led to a fire so I wanted to flag to your office. Here are the fault codes provided from Porsche: B192BF0 - High-voltage DC charger (booster) in wrong mode P33E500 - Quick battery charging (DC), Charge stn., initialization error U15AB00 - Quick battery charging (DC), Communication error between vehicle and charging station U15AE00 - Quick battery charging (DC), Charging station communication failure U15B300 - Fast battery charge (DC) – cable testing error P33F000 - High-voltage system activation, Malfunction B1A88F0 - Actuator for right charge port door – travel error U15AC00 - Signal damping log, Malfunction B200000 - Control unit – function restriction U140900 - Internal temperature measurement, Implausible signal

Filed Dec 8, 2025 · Driver assistance, Electrical · CA

The vehicle experiences a sudden and dangerous malfunction while driving. Without any prior warning, the vehicle begins to shake and then immediately brakes on its own, coming to an abrupt stop in the middle of traffic. Only after the vehicle has already braked and shut down does an “Engine Control Error” message appear on the display. There is no advance alert and no time for the driver to react or move out of traffic. This is exceptionally concerning especially as this vehicle was being used a primary mode of transportation for my 2 young toddlers who were present in the vehicle during these failures. The vehicle was purchased directly from Porsche as a Certified Pre-Owned vehicle in June 2025, and was represented by Porsche as having passed all safety and mechanical inspections at the time of purchase. Despite this, the vehicle has continued to experience catastrophic failures. Following the initial shutdown incident, the vehicle was towed to Porsche for service on September 2. Porsche stated that the issue had been repaired and assured that the vehicle was safe to operate. However, on September 29, the same failure occurred again. The vehicle shook, abruptly braked in active traffic, shut itself down, and only then displayed the engine control failure message. This shows that the underlying defect was not corrected and continues to pose a serious safety hazard. The problem is severe, unpredictable, and reproducible. It places the driver, passengers, and surrounding motorists at immediate risk because the vehicle becomes immobilized in traffic with no prior warning and no ability to pull over safely. The vehicle has been inspected by Porsche technicians, but the root cause remains unknown, and Porsche has been unable to provide a successful repair or assurance of safety. This pattern strongly indicates a critical defect in the engine control or power-management system that renders the vehicle unsafe for public road use.

Filed Oct 24, 2025 · Electrical · GA

The contact owns a 2020 Porsche Taycan. The contact received notification of the federal safety agency Campaign Number: 24V732000 (Electrical System) after owning the vehicle for a week. The vehicle was taken to the dealer, who then stated that because the vehicle had an aftermarket charger inside, the repair could not be performed unless a charger was purchased from the dealer. The dealer confirmed that the aftermarket charger would not perform as needed, and the recall repair would not be successful. The vehicle was not repaired. The manufacturer was not informed of the issue. The contact had not experienced a failure.

Filed Oct 8, 2025 · Electrical · MD

Taycan HV battery cells/modules going bad causing the car to be a brick and not drivable and dangerous. Porsche is replacing the failed cells but it can be an ongoing issues that can spread to other cells.

Filed Jul 18, 2025 · Brakes, Electrical · NC

I brought my vehicle in to a Porsche dealer on May 24th 2025 for a noise coming from the front right wheel area. There were some other issues but those were not safety related. They stated the vehicle has an open recall campaign for a brake hose. That there is a risk it could break. It is now July 18th 2025 and the dealer has had the car the entire time since May 24th 2025. They are saying they can't complete the safety recall due to no parts. Porsche has issued a STOP order for dealers selling affected vehicles. Porsche has issued a STOP order for dealers to use affected vehicles as loaners. It seems I should STOP driving the car as well yet the dealer indicated it is to give it back to me unrepaired.