Two problems related to electrical system have been reported for the 2015 Porsche Cayenne. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Porsche Cayenne based on all problems reported for the 2015 Cayenne.
On August 21 2021, I was out shopping. When I went out to return home, the car would not start. I could not jump start it or anything. I had it towed to the dealer. I found out from Porsche and dealership that my car was disabled by Porsche connect. I do not have this service or pay for it. On Friday sept 3, I was informed by Porsche customer service that it disabled my car because the original owner (in 2015) changed their phone number. So Porsche assumed stolen and shut down. I did not authorize this, I did not sign up for this service. They will not fix the car because they say it is out of warranty. Because I do not know the code to turn the car back on, they want to replace parts and say I have to get the Porsche connect app. This is a known issue at Porsche because the dealer found a TSB on it. They are not taking responsibility for shutting down the car with out my permission. This is a safety issue depending on where I could have been.
Shortly after taking delivery of this Porsche approved certified pre-owned vehicle (purchased April 25, 2022, from Porsche nashua, nashua, nh), the backup/parking sensors failed to sound. While reversing at home, I waited for the audible warning beep that never came and slowly backed into my own parked 2017 Porsche 911. The Cayenne's door was dented; the 911 was undamaged. A functioning parking sensor system would have warned me and prevented this collision. The vehicle had passed the Porsche approved cpo multi-point inspection, which is supposed to cover these safety systems. I consider this a safety-related defect in a certified vehicle.
| Electrical System problems | |
| Propulsion System Cables Fastener/connector problems |