*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Electrical system
I own a 2014 Porsche Panamera S E-Hybrid (VIN XXX). I experienced repeated hybrid system warning lights and high-voltage battery fault codes. I brought the vehicle to Porsche Atlanta Perimeter for a safety inspection. The dealership did NOT perform the required PIWIS Hybrid Battery Test Plan, did NOT check individual cell voltages, and did NOT assess the hybrid battery control unit. Instead, they provided a basic code scan and immediately recommended a $37,000 battery replacement without verifying the root cause. This is a high-voltage system handling 300+ volts, and an improper or incomplete diagnosis is a safety concern. Porsche headquarters was contacted by the dealership, but the…
Oct 24, 2025Power train
I own a 2014 Porsche Panamera S E-Hybrid (VIN XXX). I experienced repeated hybrid system warning lights and high-voltage battery fault codes. I brought the vehicle to Porsche Atlanta Perimeter for a safety inspection. The dealership did NOT perform the required PIWIS Hybrid Battery Test Plan, did NOT check individual cell voltages, and did NOT assess the hybrid battery control unit. Instead, they provided a basic code scan and immediately recommended a $37,000 battery replacement without verifying the root cause. This is a high-voltage system handling 300+ volts, and an improper or incomplete diagnosis is a safety concern. Porsche headquarters was contacted by the dealership, but the…
Oct 24, 2025Exterior lighting
A few times there has been condensation collecting in the passenger front head light. This time the condensation has damaged the headlight to where it does not work anymore.
Jan 12, 2024Engine
The contact owns a 2014 Porsche Panamera. The contact stated that while driving at an undisclosed speed, the contact heard a knocking sound and the vehicle stalled. The contact was able to coast the vehicle off the road. The vehicle was towed to the dealer where it was diagnosed that the camshaft adjuster central bolts from bank two failed and needed to be replaced. The vehicle was repaired however, the failure recurred. The contact stated that while driving approximately 70 MPH, he heard a knocking sound at the hood of the vehicle and a loss of acceleration. The fault all-wheel drive system warning light illuminated, and the check engine warning light intermittently illuminated with the…
Mar 29, 2023 · 150,000 milesElectrical system
The PCM infotainment unit continuously reboot itself. It drains the battery very fast.
Mar 14, 2023Exterior lighting
I called the Porsche dealer regarding my open recall and they are unable to check my vehicle for 2 months. That is unacceptable. What are my next steps?
Dec 2, 2022Power train
The contact owns a 2014 Porsche Panamera. The contact stated that upon start of the vehicle, the vehicle would unintentionally roll forward without warning. The contact also stated that the gear selector lights would flash during the failure. The contact stated that upon restart of the vehicle, the vehicle would temporarily operate as needed; however, the failure would return. The contact called the manufacturer and was referred to the dealer for assistance. The dealer informed him that there were no recalls on the VIN related to the failure. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 19V446000 (Power Train). The vehicle was not repaired. The failure…
Sep 18, 2022 · 144,000 milesPower train
Car engine frequently stalls while driving, usually at stop or slow speed (e.g. intersection). Electrical system remains on; turning off and on ignition will restart car and allow driving. Had problem investigated and was told it was a transmission sensor which was repaired but failed to fix problem. Re-investigation identified transmission failure due to sensor in sealed transmission required replacement.
Aug 30, 2021
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.