2019 Porsche Cayenne

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.

NHTSA ID

11766561

Incident

Sep 16, 2026

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.

NHTSA ID

11766002

Incident

May 23, 2023

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.

NHTSA ID

11759710

Incident

Jun 26, 2026

Mileage

46,000 mi

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.

NHTSA ID

11752100

Incident

Jul 22, 2025

Mileage

105,000 mi

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.

NHTSA ID

11750486

Incident

Jul 11, 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)

NHTSA ID

11747045

Incident

Mar 16, 2026

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.

NHTSA ID

11745533

Incident

Jul 1, 2025

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.

NHTSA ID

11737919

Incident

Dec 31, 1969

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