Porsche Taycan stalling problems

Filed Oct 18, 2026 · Electrical, Fuel system · GA

Vehicle experienced a sudden, complete loss of motive power while driving in active traffic at night, creating an immediate crash hazard. The vehicle had just been picked up from an authorized Porsche Service Center approximately 12 hours prior (picked up between 11:00AM - 12:00 PM, failed at 11:09 PM) after undergoing a comprehensive 60K mile scheduled service and a mandatory manufacturer software recall campaign. Without warning, the vehicle completely stalled and dropped into an undriveable state. The driver’s instrument cluster immediately illuminated two major critical alerts: "Transmission failure" and "Engine control error." Because the vehicle was stranded dangerously in live traffic, local police were dispatched to assist with safety and traffic control (Police Incident #XXX). The vehicle had to be urgently towed from the roadway at an out-of-pocket cost of $300, and it has been returned directly to the authorized Porsche service center in [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 17, 2026 · Engine, Fuel system · CA

Component/system: High-voltage (HV) battery system and power electronics. 2020 Porsche Taycan Turbo, VIN [XXX] . Vehicle available for inspection. Safety risk: Since January 2025, the vehicle has repeatedly displayed a "pull over and park safely" emergency warning and shut off unexpectedly while driving at highway and surface road speeds. Sudden loss of propulsion at speed created serious collision risk. Dealer-confirmed: Porsche Woodland Hills documented (July 2025): "vehicle just shut off on him as he was driving — multiple occurrences." A second shutdown was confirmed August 2025: "vehicle shut off while driving — high voltage battery error." Four or more repair visits under my ownership for this same defect. Fault codes confirmed by authorized Porsche dealers: P0AA600 (HV Battery Voltage System Isolation Fault — highest severity), P0A4000 (Rotor Position Sensor Fault), U178800 (Front Axle Power Electronics Drive Fault), P061B00 (Torque Calculation Fault). November 2025: Porsche Downtown LA isolated all 33 battery modules, found modules 6, 19, and 32 defective — all physically replaced. Vehicle out of service 9+ weeks. Shutdown warning recurred during same visit. Porsche NA (Case #XXX) denied repurchase. Warning lamps: "Pull over and park safely" warning and HV battery error appeared suddenly before each shutdown. No gradual symptoms. Recurring since January 2025. Additional: Prior owner records show HV battery water intrusion (February 2024) requiring full battery removal and reinstallation. In July 2024, dealer cleared "numerous inactive fault codes" without disclosure prior to my purchase. Porsche NA has acknowledged the issue by offering goodwill compensation while refusing repurchase. Cumulative out-of-service days for this defect exceed 75 days across multiple repair visits. I request the federal safety agency investigate whether this defect exists across other Taycan vehicles and whether a recall is warranted. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 7, 2026 · Engine · CA

1. Do not charge the car more 80% fire risk. 2. Loss of power stalling,software malfunction. 3. Battery/Electrical: Battery issues,erratic instrument panel gauges or lights. electronic stability control overheating. 4. Miscellaneous Concerns; Battery power loss.

Filed Oct 11, 2023 · Electrical · 10,482 miles · FL

The contact owns a 2020 Porsche Taycan. The contact stated that while driving at an undisclosed speed, the vehicle lost electrical power and stalled. The contact stated that he was able to veer to the side of the road. The contact was able to restart the vehicle; however, the failure recurred while driving. The contact stated that while making a right turn, the instrument cluster became inoperable. The contact was able to reboot the vehicle and the instrument cluster became operable. An unknown message was displayed. The service warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the battery had failed and needed to be replaced. The vehicle remained at the dealer for additional diagnostic testing. The vehicle was not repaired. The manufacturer was notified of the failure and offered to partially cover the repair. The manufacturer referred the contact to the dealer. The failure mileage was approximately 10,482.

Filed Sep 29, 2023 · Engine · HI

The car was suddenly stalled at road multiple times, showing red warning "Engine control error. Park vehicle in a safe place" . Porsche is unable to solve such major safety issue of its electric car for past two years.

Filed Oct 19, 2022 · Electrical · CA

The vehicle has stalled out repeatedly while driving. When starting from an intersection it will lose all power and a turtle icon shows up on the screen and the car will not move more than 5 MPH. After rolling to a stop, and restarting the car drives okay. Then a few days or a week, month later, it happens again. Also, the PCM repeatedly weekly, fails to boot up and I have no backup camera or controls of the car. The dealer erases codes and gives the car back, they don't know what's wrong.

Filed Aug 20, 2021 · Electrical, Engine · 1,234 miles · IL

The contact owns a 2021 Porsche Taycan. The contact stated that while driving 20 MPH, the vehicle began to shudder and then stalled as the "electrical system error, park vehicle in a safe place" warning message illuminated on the instrument panel. The vehicle failed again soon after restart. The contact was able to drive the vehicle to his home. The contact then called the local dealer and the vehicle was towed to the dealer. The next day, the contact received notification of the federal safety agency Campaign Number: 21V486000 (Engine and Engine Cooling, Electrical System) which was linked to the failure. Despite several attempts to repair the vehicle under the recall, the vehicle was not repaired. The vehicle remained in the dealer possession. The contact was recently informed by the dealer that a German engineer would be sent their location to repair the vehicle. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 1,234.

Filed Jun 28, 2021 · Electrical · NY

The Car shut off on highway with no warning. Was sent to dealer for update. update was preformed car has not shut off while driving since but has not started. brought to dea;ler they were unable to replicate situation and returned the car.

Filed May 29, 2021 · Electrical · NM

I was stopped at a red light on a busy street with no-one behind me, one or two seconds before the light changed to green the car shut down with no error message or warning. By then vehicles had caught up to where I was stalled out at the light and had to swerve to go around me. After about ten seconds I was able to get the car started again and to drive off safely. The vehicle has been at the Porsche dealer for the past three weeks saying they can't duplicate the issue and have not "had time" to install the updates to fix numerous other glitches such as my phone randomly disconnecting from bluetooth, the center dash nav console randomly going dark, the XM radio can't be accessed (even though I have a paid subscription, Porsche hasn't been able to get that working during all this time either even getting on the phone with Siruis XM to verify configuration and subscription). 3 out of 5 times the garage door opener fails to open the door. There appears to be serious electrical and computer glitches happening.

Filed May 25, 2021 · Engine, Transmission · SC

The safety risk of having the car’s motor completely lose power on the road/highway is high, as you are then left powerless. We have not reproduced this issue ourselves. Our local Porsche dealer has looked at it and said it was a “one off” type of malfunction and could not find any issue with the car when we brought it in. The car shut off while driving and gave a “Motor control error.” The car’s interior electronics stayed on, but the car had no drive power at all. There were no warning signs or problems prior to this issue occurring