2020 Porsche Cayenne

Porsche dashboard leather shrunk and is bubbling on the entire top where the Airbag sits. I was told that if the vehicle was in an accident the airbag might not deploy correctly. The Porsche dealer looked at it and recommended replacing the entire dashboard! This is a very common issue with Porsche, and a safety concern which seems due to the fact that Porsche did not use the correct adhesive on all most of cars build in the last 10 years. The dashboard is not withstanding normal sun light and this causes a safety issue.

My 2020 Porsche Cayenne has experienced leather dashboard delamination, with the leather separating, shrinking, and lifting from the dashboard substrate on both the driver and passenger sides. The delamination extends across the upper dashboard, including areas adjacent to the passenger airbag deployment zone. I am concerned that loose or detached dashboard material could interfere with, delay, or alter the proper deployment of the passenger airbag during a collision, increasing the risk of injury. The continued deterioration also raises concerns about the integrity of the dashboard structure over time. Porsche inspected the vehicle and determined that the repair requires replacement of the entire dashboard assembly at an estimated cost of approximately $8,000 to $10,000. This indicates the condition is not a cosmetic issue but requires replacement of a major dashboard component. I have identified numerous reports from other Porsche owners describing the same leather dashboard delamination on late model Cayenne vehicles, suggesting this is a recurring manufacturing defect rather than an isolated occurrence. Porsche is part of the Volkswagen Group. Audi, another Volkswagen Group brand, issued Technical Service Bulletin 2071698/1 (NHTSA TSB MC-10245529-0001) addressing leather dashboard delamination caused by adhesive failure. The bulletin describes bubbling, wrinkling, loose leather, and delamination and instructs dealers to replace the dashboard. Audi also issued a limited warranty extension for affected vehicles. While Audi's bulletin does not apply to Porsche vehicles, it demonstrates that Volkswagen Group has recognized this type of dashboard adhesive failure. I request that NHTSA investigate whether Porsche Cayenne dashboard delamination constitutes a safety defect with the potential to affect passenger airbag deployment and occupant protection.

When downshifting and just before Coming to a complete stop and vehicle lurches/surges forward even though my foot is on the brake pedal. This happens in every drive mode with or without Autostart/stop engaged. It is Significantly challenging in stop and go traffic because it’s difficult to gage when the car will come to a complete stop. I have to make accommodation for the car lunging forward which is unpredictable because sometimes it’s a subtle surge forward and other times I have no control or idea how far forward the car is going to move. This makes this is especially dangerous when cars are quickly changing lanes in front of me in stop and go traffic during rush hour. Emergency braking DOES not help this! I have experience this. The collision warning Went off in the car and emergency braking was engaged just at the Knick of time! Adverse weather conditions could have easily made that a very bad accident. I should be able to Do normal every day driving And stopping, for example stopping to a red light, or stop and go traffic without having to activate emergency functions in my car and putting myself at unnecessary risk because of a “glitch” with Porsche. This normal every day driving. I returned my car to the dealership who told me it’s normal performance for this car along with. I along with many other owners have researched this and found out that software upgrades have been done to correct this problem which are not available yet in the United States. This issue needs to be resolved immediately to prevent potential accidents.

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

I applied the gas pedal & the pedal seemed to stick . The vehicle kept accelerating after I took my foot off that pedal to apply brake . Car would slow when brake applied but immediately accelerated and kept increasing (speed was well over 90 mph & climbing ) when brake was released . This happened 3 times before the “stuck”pedal released. Another driver (retired mechanic) had driven the car and had similar experience a week prior and mentioned their experience. I didn’t realize how serious the incident could be. I called dealership but first available service appointment (scheduled) is Feb. 23,2022

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.