2019 Porsche Cayenne Complaints

WHEELS,UNKNOWN OR OTHER — Filed 09/01/2023

Perelli scorpion Verde tires started showing sidewall degradation and pitting in 2003 or earlier – the earliest photos we have are dated 2003. The tires had to be replaced due to the degradation and we requested the tire shop to look into a warranty claim. The tire shop changed hands and we went through four managers and weren’t able to get a clear answer, during that time the tires continued to get worse and pit. We found numerous reports on the Internet of the same tire having a identical issue and believe it is a material defect and safety issue of this tire.

ENGINE — Filed 09/16/2026

The Waste Gate Arm has broken on my 2019 Cayenne. This is a widely known issue with Porsches. Feels like this needs a recall. It is absurd to me that the dealers want to replace the whole turbo unit at $7-9k when a simple weld can fix. I am 6 months out of the 7 year warranty but under the 70k mileage. I am pushing the dealer to work this out. But it is crazy that Porsche isn’t held accountable for a design flaw.

UNKNOWN OR OTHER — Filed 05/23/2023

Complaint regarding a battery-monitoring/sensor issue, 2019 Porsche Cayenne and Porsche’s subsequent handling of the related repair. On May 22, 2023, at approximately 27,625 miles, my 2019 Porsche Cayenne was serviced by Fox Valley Porsche under Repair Order 103905. While driving a “battery charging warning.” showed, I was very scared. Dealer diagnosed a battery sensor failure and replaced the 12-volt battery. The invoice shows a battery charge of 1,957.87, plus labor. Repair documentation states “WMJ9 — Campaign not required.” I am asking NHTSA to investigate, whether the battery-sensor condition that resulted in my battery being replaced was related to the condition addressed by Porsche campaign WMJ9 and whether this condition can cause premature or unnecessary 12-volt battery replacement. Porsche subsequently identified the active fault associated with my vehicle as P1D6C00 and described it as a defect in the battery sensor located inside the battery. Porsche also stated that the vehicle’s battery-sensor software was already at software level 0164 and therefore the WMJ9 campaign was not performed. Porsche’s WMJ9 campaign addressed a battery-sensor/software condition involving incorrect battery-aging calculations and the potential for premature battery replacement. Because my vehicle had a battery-sensor fault and the dealer replaced the battery during the same general period that this campaign existed, I repeatedly asked Porsche and the dealer to establish why my battery itself required replacement rather than the condition being addressed through WMJ9. I requested objective documentation: • battery’s state of health/capacity at May 2023 repair; • battery test results; • diagnostic evidence physical battery failed, rather than only the battery sensor; • PIWIS diagnostic/scan information or other supporting diagnostic records; • basis for determining WMJ9 was unrelated Neither dealer, nor North America Porsche could provide factual test results.

BACK OVER PREVENTION — Filed 06/26/2026

The contact owns a 2019 Porsche Cayenne. The contact stated that while reversing, the rear-view camera displayed an unknown red warning message. The vehicle was taken to the dealer, but the contact was unsure if the vehicle was inspected. The dealer had not provided a diagnostic test information. The contact was informed that parts were unavailable. The contact received notification of NHTSA Campaign Number: 25V896000 (Back Over Prevention); however, the part to do the recall repair was unavailable. The manufacturer was made aware of the failure. The contact was informed that the parts were unavailable. In addition, the contact was informed that the parts would be available within two months. The failure mileage was approximately 46,000.

BACK OVER PREVENTION — Filed 07/22/2025

The contact owns a 2019 Porsche Cayenne. The contact stated that while the vehicle was in reverse(R), the back-over prevention camera failed to provide a rear-view image. The contact received notification of NHTSA Campaign Number: 25V896000 (Back Over Prevention); and associated the failure with the recall. The local dealer was contacted; however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 105,000.

AIR BAGS — Filed 07/11/2026

The dashboard is peeling up and is unsafe due to airbag being underneath the leather dash. If airbag was to blow it would not function correctly due to dashboard leather peeling. Could potentially injur passenger or not deploy at all.

SERVICE BRAKES,ENGINE — Filed 03/16/2026

2019 Porsche Cayenne Turbo (EA825 4.0L V8, VIN [XXX]). Vacuum-actuated water pump seal failure caused coolant infiltration of the vacuum system on two separate occasions during the CPO warranty period. The vacuum system on this engine supplies the brake servo (brake booster) — a safety-critical connection documented in Porsche and Audi's own engineering literature for this engine (NHTSA document MC-XXX). First failure: XXX (92,916 miles, RO XXX). Towed in overheating. Technician documented coolant infiltrating vacuum system. Coolant pump replaced. Vacuum lines not inspected or replaced. Vacuum pump not inspected or replaced. PCNA's own ATI 2235.1 (NHTSA MC-XXX) required vacuum line inspection — not performed. Second failure: October 3, 2025 (103,904 miles, RO 207205). Coolant documented at timing chain cover. Coolant pump replaced. Change-over valve not replaced — required unconditionally by ATI 2235.1. Vacuum lines not inspected or replaced. No PQIS fault code logged — required by PCNA TSB 2307 (NHTSA MC-XXX). No oil analysis performed. No timing chain cavity inspection. Service visit performed one month before CPO expiration. Third visit: XXX (103,988 miles, RO XXX). Cracked breather hose found 84 miles after second service. Vacuum system still unremediated. Current failure: March 2026. Severe valvetrain noise on cylinder bank 2. Engine-out diagnosis required. Estimate $13,286.57. Vehicle currently at Porsche Novi/Farmington Hills. PCNA denied coverage June 25, 2026 without referencing a single technical bulletin, repair order, or published protocol from the documented record. The brake servo vacuum supply connection — documented in PCNA and Audi's own engineering literature — makes this a safety matter. PCNA's own TI 173/21 (NHTSA MC-XXX) explicitly covers the V8 Biturbo variant and was not followed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

POWER TRAIN,ELECTRICAL SYSTEM,ENGINE — Filed 07/01/2025

The hybrid cooling system on my 2019 Porsche Cayenne E-Hybrid repeatedly displayed a red dashboard warning while the vehicle was in motion: "Hybrid coolant level too low / Park vehicle safely / Let vehicle cool down." This warning appeared on multiple occasions at speeds of approximately 22 mph, 38–40 mph, and 47 mph, as documented in timestamped photos and videos taken in November 2025. A separate warning in July 2025 read: "Engine cannot be started / Remove charger plug." The warnings indicate a potential thermal management or hybrid cooling system failure. A moving vehicle being instructed to park and cool down presents a safety risk to the driver and others, particularly if the condition causes sudden power loss or thermal event. The vehicle was serviced at an authorized Porsche dealer in 2025. Despite that service activity, the hybrid coolant warning recurred while driving in November 2025, suggesting the underlying condition was not fully resolved. The issue was reported to the manufacturer (PCNA), who acknowledged it under a case number and offered a service voucher. The selling dealer attributed the concerns to a manufacturer charging-cable campaign. Neither response addressed the recurring in-motion warning or confirmed the hybrid cooling system was repaired. Timestamped photo and video evidence is available showing the dashboard warnings and vehicle speed at time of occurrence. Complete repair orders have been requested but not yet provided. The component may be available for inspection upon request.

AIR BAGS,UNKNOWN OR OTHER — Filed 12/31/1969

Porsche leather dashboard shrunk and staples pulled out. I was told if the vehicle was in an accident the airbag may not deploy properly. The Porsche dealer looked at it recommend that it be replaced. This is a known manufacturer defect that has been occurring with many of Porsche leather dashboards in different models. The manufacture is not taking responsibility in repairing or recalling this dangerous situation and putting the cost onto the customer. The fact that this is an option they offer as an additional cost on their vehicles , knowing this is a dangerous defect. This alone should automatically issue recall to fix before someone gets seriously injured.

AIR BAGS,UNKNOWN OR OTHER — Filed 06/30/2024

The leather dash is peeling irregularly and will not deploy the passenger airbag properly if vehicle is involved in an accident and could result in death of a passenger. Serious problem with Cayenne SUV’s and Porsche refuses to address the problem with multiple complaints from other owners.

ENGINE — Filed 02/14/2026

sudden total drivetrain failure at 52k mi with no warning, child passenger, prior dealer-documented leak that was not escalated.

POWER TRAIN,UNKNOWN OR OTHER — Filed 02/14/2026

At approximately 52,000 miles, the vehicle experienced a sudden catastrophic transmission / driveline failure while in use. The failure created serious concern about safe operation and reliability and left the vehicle disabled or unsafe to continue driving normally. An authorized Porsche dealer evaluated the vehicle and stated that the repair would require replacement of the entire transmission assembly at very high cost. No practical parts-level repair option has been provided. I am reporting this because a sudden major powertrain failure at this mileage may indicate a safety-related defect.

AIR BAGS — Filed 03/01/2026

Bubbled dashboard is considered as a safety issue that airbag may NOT be properly deployed when an accident occurs.

BACK OVER PREVENTION — Filed 12/19/2025

The contact owns a 2019 Porsche Cayenne. The contact received notification of NHTSA Campaign Number: 25V896000 (Back Over Prevention). The contact called a local dealer and the manufacturer but was advised that the part for the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure.

AIR BAGS,VISIBILITY/WIPER — Filed 09/05/2025

SAFETY ASSESSMENT: 2019 Porsche Cayenne S Dashboard Material Failure Vehicle Identification: VIN [XXX] , Current Odometer: 46639 Assessment Date: 12/11/2025 Evaluator: [XXX] , Registered Owner/Operator ________________________________________ EXECUTIVE SUMMARY The dashboard upper assembly in this vehicle exhibits progressive adhesive delamination and synthetic leather separation (colloquially “bubbling”) across the instrument cluster housing and passenger airbag deployment zone. This defect, while initially cosmetic, presents measurable safety risks under Federal Motor Vehicle Safety Standards (FMVSS) by compromising passive restraint systems, driver visibility, and interior structural integrity during collision events. The failure pattern is consistent with documented manufacturing defects affecting 2018-2022 Cayenne production units. ________________________________________ TECHNICAL ANALYSIS Defect Manifestation: •Multi-point adhesive failure between dashboard substrate and synthetic leather wrap •Bubbles ranging 2-8cm diameter directly above passenger-side airbag module •Progression rate: 15% surface area increase over 4-month observation period •Material: Thermoplastic olefin (TPO) substrate with polyurethane coating exhibiting UV-degradation and outgassing Root Cause: Inadequate adhesive curing during manufacturing combined with incompatible material expansion coefficients, resulting in progressive de-lamination under thermal cycling. ________________________________________ SAFETY CONCERNS 1. PASSENGER AIRBAG DEPLOYMENT (FMVSS 208 Violation Risk) 2. DRIVER VISIBILITY IMPAIRMENT (FMVSS 101 Violation Risk) 3. INTERIOR STRUCTURAL INTEGRITY (FMVSS 201/214) 4. SECONDARY PROJECTILE HAZARD 5. OCCUPANT HEALTH & COGNITIVE LOAD This defect constitutes a latent safety hazard that degrades over time, not a static cosmetic issue. The combination of airbag deployment trajectory interference, driver visibility impairment, structural integrity compromise. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

AIR BAGS,UNKNOWN OR OTHER — Filed 09/01/2025

Porsche leather dashboard shrunk and is loose; I was told airbags may not deploy correctly. Porche recommended replacing the dashboard. This is a very common issue.

AIR BAGS — Filed 10/08/2024

The dashboard material cover is pulling away lifting up from the dashboard where air bags are located.Not safe

POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE — Filed 10/22/2025

While driving my 2019 Porsche Cayenne S on the freeway, the check-engine light came on, followed by a message on the dashboard that read “Engine Control fault – Driving permitted – Visit workshop.” Moments later, the vehicle suddenly lost power and decelerated from about ~75 mph to around 55 mph, even though my foot was still on the accelerator. I am [XXX] pregnant and had our [XXX] child in the car at the time. The unexpected loss of speed in fast-moving traffic was frightening. I had to quickly change lanes to reach the slower lane and avoid being hit by other vehicles. After reaching safety, I drove the car to an authorized Porsche dealership, where technicians found an active water-pump leak with coolant entering the vacuum system, which may have caused turbocharger and engine-power failure. This is after I replaced the water pump last year at another porsche dealership. A photo taken during the incident shows the dashboard warning message as it appeared. This incident created a serious safety hazard, as the vehicle displayed “driving permitted” even though it was at risk of a sudden loss of propulsion at highway speeds. The car and the failed components are available for inspection. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

AIR BAGS,UNKNOWN OR OTHER — Filed 08/15/2025

Porsche dashboard leather shrunk and staples pulled out, I was told that if the vehicle was in an accident the air bags might not deploy properly . the Porsche dealer looked at it and recommended replacing it . this is a very common issue .

AIR BAGS — Filed 08/18/2025

leather dashboard bubbles up and could effect the deployment of the passenger airbag

AIR BAGS,UNKNOWN OR OTHER — Filed 07/12/2025

The leather dashboard has shrunk to the point where the the Porsche dealer recommend replaceing it. This appears to be an issue serious enough to prevent the airbag from deploying correctly if in an accident. This appears to be a common issue.

EXTERIOR LIGHTING — Filed 07/03/2025

Seals around both headlights appear to be improperly/weakly sealed. Water intrusion is coming in from light rain or even a car wash causing entire headlight system to shut off until the moisture dries up often while driving. This vehicle has matrix adaptive led headlights and there is no self service bulb to replace since they’re leds. Local Porsche dealer service advisors appear to know this is a common issue but state Porsche has yet to do a recall and they have no fix option and only offer to sell me a full headlight assembly replacement.

AIR BAGS,UNKNOWN OR OTHER — Filed 04/22/2025

the dashboard has a fitted leather coating covering the airbag... the leather and its surrounding seals has melted.. almost entirely.. and it is rippled and uneven all around... this is widespread for these models and may cause problems with the airbag in the dash...the airbag has to be able to deploy without any problems.. the dash should be fixed so it is safe

SERVICE BRAKES — Filed 04/10/2025

I purchased a Used Porsche Pre-Owned Certified 2019 Porsche Cayenne Turbo SUV on February 22, 2025, and within 4 to 6 weeks, the front brakes started to squeal very loudly when the vehicle comes to a near- stop. The dealership (Porsche River Oaks, 4007 Greenbriar Dr, Houston, TX 77098) tells me that this is normal squealing due to the type of brakes that this car has (PSCB). The squeal is louder than typical brake squealing and shouldn't appear on such a newly purchased certified car. I am reading multiple complaints on the internet about the squealing problems with the Porsche Surface Coated Brakes (PSCB) that I have on my vehicle. I am also seeing that. Porsche Cars North America, Inc has issued a Technical Service Bulletin 120/22ENU 4652 published on Sept 9, 2022, on how to fix this problem for its customers with a special brake disc and brake pad with better acoustical properties. The parts for this repair are extremely expensive. My car is supposed to be under warranty, but the service technician has offered to only clean the brake pads which the service advisor tells me should suppress the brake squeal for a short period of time, but then told me that the noise will come back due to the type of PCSB brakes this car has. I feel like I have been tricked into buy a car with defective squealing brakes and Porsche Cars of North America knew about the problem with these PSCB brakes. My worry is that Porsche Dealerships, know how to temporarily fix this squealing problem when they sell these vehicles by cleaning the brake pads.

STEERING,SERVICE BRAKES — Filed 06/06/2019

SEVERAL TIMES A MONTH WHEN MY CAR COMES TO A STOP THE BRAKES MALFUNCTION AND THE BRAKE PEDAL GOES TO THE FLOOR AND THE POWER STEERING STOPS WORKING. IT TAKES UP TO ANOTHER CAR LENGTH TO FULLY STOP WHEN THIS HAPPENS - SOMETIMES JUST A FEW EXTRA FEET. IT HAS CAUSED ME TO DAMAGE THE FRONT END BY DRIVING INTO A BUSH. THE DEALER REFUSES TO DO ANYTHING BECAUSE THEY CAN'T REPLICATE THE BRAKE PROBLEM AND THEY STATE THE STEERING PROBLEM IS NORMAL. I HAVE BEEN ABLE TO REPLICATE THE STEERING PROBLEMS TO THEM BUT BECAUSE THE BRAKE ISSUE HAPPENS ONLY A FEW TIMES A MONTH I WAS NOT ABLE TO.