2020 Porsche Taycan engine problems

Filed Oct 21, 2026 · Acceleration, Engine · OR

When turning a corner at lower speeds (15-25mph each time) the car starts shuddering violently and will not accelerate, slowing to a stop. The display shows an engine control error. Once you turn the car off and back on it drives fine.

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 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 Feb 25, 2026 · Engine · GA

While driving the vehicle, an error message (Engine Control Error) will pop up. The car will come to an immediate stop…forcing the driver to shut off car and restart it. This has happened multiple times and in one instance occurred on the highway. It almost caused a catastrophic accident as the car came to an abrupt stop in the middle lane of the highway. I’ve taken the car to the dealership multiple times and they have not been able to fix it. I’ve read many Taycan message board posts and it seems like this is a common issue amongst multiple years of Taycans. This is a serious safety issue and a recall should be issued with a remedy for this. Due to this, I cannot drive the car on the highway as I’m scared of it happening randomly. This is a known issue and one that should be recalled and handled appropriately by Porsche.

Filed Jan 21, 2026 · Engine · MA

The EV had a “Engine Control Error” and suffered engine failure on Jan 6th 2026 at 5:17pm. It happened out of nowhere without any warning at low speed.

Filed Jan 8, 2026 · Engine · TX

Made a turn into a street and driving at slow pace (about 20mph) and the vehicle suddenly shuddered and came to complete stop and died in the middle of the road. I had no time to pull over. No warning. It just happened. Fortunately, no oncoming or cars behind me. There was a red dash board warning “Engine Control Error”. I turned off the vehicle and restarted.

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 Nov 5, 2025 · Engine, Steering · CA

During my ownership, the vehicle experienced multiple dangerous failures. It suddenly lost power while driving with my 2‑year‑old child onboard, and on another occasion the steering wheel locked for several seconds on the freeway. The car has had numerous recalls, and the dealer later confirmed an EV motor failure but offered no buyback. These defects created serious safety risks and caused significant financial loss, which I believe requires the federal safety agency’s attention.

Filed Apr 28, 2025 · Engine, Transmission · CA

I am writing to bring to your urgent attention a recurring and serious issue with my Porsche Taycan (VIN: [XXX] ). On multiple occasions while driving, the vehicle has suddenly lost all power and displayed the error message: "Engine control error. Stop the car in a safe place." When this occurs, the car becomes completely unresponsive and unable to move forward, posing a significant safety risk, especially when it happens in traffic. I am forced to stop, switch off the vehicle, wait for a couple of minutes, and restart it. The error message disappears after restarting, but the issue continues to recur. This has now happened three times in the past two months. I first brought the vehicle to the dealer after the initial incident, and they recommended a software update. However, after the issue reoccurred and I returned to the dealership, they were unable to retrieve any error codes. Despite these efforts, the problem persists. Given the severity of the issue and the risk it poses while driving, I am requesting immediate assistance and a thorough investigation into the root cause of this malfunction. This is not only a mechanical concern but a serious safety issue that requires urgent attention. Please let me know the next steps to have this addressed properly and whether a formal case can be opened for further diagnostics and resolution. Thank you for your prompt attention to this matter. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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.