2020 Porsche Cayenne

Nearly 25% of the total time I have owned this Certified Pre-Owned vehicle (146 out of 564 days), it has been non-functional and in the shop — roughly 1 out of every 4 days of ownership. I am a [XXX} with a [XXX] child, and I purchased this vehicle as a Certified Pre-Owned (CPO) Porsche — expecting the manufacturer's rigorous inspection and warranty to ensure reliability and safety. Instead, the first breakdown occurred within just 1 month of purchase, and the vehicle has since failed six separate times over 18 months (Feb 2025–Aug 2026), totaling 60+ days out of service, despite extensive component replacement: [XXX] (≈1 month after CPO purchase) – Battery failure; car would not start; towed at 2–3 AM. [XXX] – No-start; fuel tank drained/refueled ("improper additive"). [XXX] – Low fuel pump replaced. [XXX] – High fuel pump, all 6 fuel injectors, DME system replaced. [XXX] – Recurring no-start; repurchase denied May 7, 2025; Porsche later claimed root cause found (mechanical part) and replaced it. Aug 1, 2026–ongoing – Check engine light returned; misfire on cylinder 4 and coolant leak into vacuum system found. Dealer replaced coolant pump/vacuum components, updated DME software — check engine light reappeared on the dealer's own test drive. Why This Is Especially Dangerous: A CPO vehicle should not fail this quickly or repeatedly. It raised serious concern that either the inspection was inadequate or a pre-existing defect was never disclosed. My child rides in this vehicle regularly. A sudden stall or power loss at highway speed, at an intersection, or during school pickup/drop-off could cause a serious collision, endangering my child's life and my own. As a [XXX] with no backup driver/vehicle, an unexpected breakdown have cost lost work time, unreimbursed Uber expenses, and childcare disruptions. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

hello i have cayenne 2020. this car has 360 surround view camera but its not working correctly. sometime its working sometimes some comeras not working maybe front maybe rear meybe both. as i read rennlist this is porshe forum everyone has same problem porshe in warranty replace modules or cameras but its not working i think its recall issue please help us.

beginning in August 2022, I have had repeated problems with the battery in my 2022 Cayenne. if the car is left sitting for approximately 48 hours, the battery dies and must be jumpstarted. we reported this issue to Porsche immediately and my car has been in with the Porsche service technicians at least three times (August 9, Sept 13, Nov 7) this fall with no success at fixing the problem. (we also had a call telling us to take the car outside for a "software update," which did not work.) we are told this is a problem somewhere in the electrical system and it is affecting other 2020 Cayennes and some 911s. But Porsche has not offered a solution, nor is it being at all proactive in offering assistance or support. we have compensated for the last four months by parking the car in a garage and keeping it on a trickle charger if we are not driving it regularly. However, we were out of town for two weeks over Thanksgiving and the car battery died in spite of being connected to the trickle charger. we had to jump start the car and reset all the car settings. in addition we have had sporadic issues with unlocking and locking the car doors via hand touch. Porsche has been treating this issue as an "inconvenience" rather than what it is - a serious life safety issue. One of the service technicians told me "the car was meant to be driven every day"! I hesitate to drive my car at night because I do not have confidence that the car will start for me on a dark street at night. every day when I come down to drive my car I allow extra time as the car may not start. I have more confidence in my 2013 Toyota Tacoma than in this car in terms of reliability. this is a problem where Porsche has not offered remediation or assistance, nor has it offered a any assistance (I.e., loaner car or any alternative) while my car either been in the shop (for a total of at least two weeks) or has been operating with the (acknowledged) defect.

What component or system failed or malfunctioned, and is it available for inspection upon request? -THE TRUNK How was your safety or the safety of others put at risk? -WHILE THE VEHICLE WAS ON, THE KEY WAS ON TEH VEHICLE AND THE VEHICLE WAS IN MOTION THE TRUNK POPPED OPEN ON IT'S OWN. Has the problem been reproduced or confirmed by a dealer or independent service center? -NO Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -NO Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -NO

THE CAR CAME WITH A FACTORY INSTALLED TOW SYSTEM. I RETURNED IT TO THE DEALER THREE TIMES AND IT DOES NOT WORK PROPERLY. I WAS SHOCKED PLUGGING IN A TESTER TO THE 7 WAY CONNECTOR. THE DEALER SERVICE MANAGER ADVISED ME THAT I WAS NOT SHOCKED AND STATES THAT THE LIGHTS STATING THE 7 WAY CONNECTOR IS NORMAL. THIS IS NOT NORMAL. WHEN I CONNECT A DIGITAL BREAK CONTROLLER OR 7 PIN CABLE WITH A TRAILER THE CAR DOESN'T NOT COMMUNICATE WITH THE BREAK CONTROLLER. THE BREAK CONTROLLER EXPERT STATED THAT SINCE NO DIODE WAS SHOWING WHEN I PLUG THE CAR IN THAT THIS INDICATES THE BRAKES ARE NOT WIRED CORRECTLY. THE DEALERSHIP SAYS SINCE ANOTHER CAR WORKS THE SAME AS MINE THEY DON'T THINK IT IS A ISSUE. CORPORATE PORSCHE IS UNABLE TO ADVISE ON TECHNICAL SERVICE BULLETINS OR INFORMATION ON A WIRING HARNESS TO ENABLE A WIRED BREAK CONTROLLER. I TOOK THE CAR OVER TO UHAUL AND DID REMOTE CALLS WITH THE BRAKE CONTROLLER MANUFACTURER. ALL STATE THAT IT IS SOMETHING WITH THE MANNER IT IS WIRED WITH A 'OPEN GROUND'. THIS IS UNSAFE AS I HAVE NO WAY SAFELY BRAKE OR UTILIZE A BRAKE CONTROLLER. SINCE OTHER 2020S BEHAVE THE SAME WAY THIS IS A SYSTEMWIDE ISSUE AND THE MANUFACTURER IS NOT TAKING ACTION SO IT SHOULD BE EVALUATED BY ENGINEERING.