Porsche Cayenne Complaints

666 consumer complaints on file.

#11738004May 15, 2026
ENGINE
The contact owns a 2022 Porsche Cayenne. The contact stated that an abnormal tapping noise was coming from the engine compartment. No warning lights were illuminated at the time of the failure. The vehicle was initially taken to an independent mechanic, who confirmed the tapping noise and referred the contact to an authorized dealer for further inspection. The vehicle was then taken to local dealers, who acknowledged the noise but advised that the vehicle was operating as designed and that the condition was considered normal. The vehicle was not diagnosed or repaired. The vehicle was later taken to New Country Porsche Greenwich Service Center, 241 West Putnam Avenue, Greenwich, CT 06830, but the vehicle was not diagnosed or repaired. The tapping noise continued to persist over time. The manufacturer was contacted and confirmed that there was no warranty coverage. The failure mileage was approximately 40,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737919May 14, 2026
AIR BAGS, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737472May 12, 2026
AIR BAGS, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737123May 11, 2026
VISIBILITY/WIPER, ELECTRICAL SYSTEM
Instrument cluster anti-glare film or delamination on center and left instrument cluster. The film is wearing away in certain irregular sport and shapes. The overall wear is impacting the visibility to the center cluster under certain conditions leading to obscure visibility to important information, including vehicle speed or other warning light. It has been raised to the dealer, then to Porsche NA, but the dealer has stated they (Porsche NA) will not cover the repair, even though the vehicle is under a CPO warranty. This first started appearing this year and has gotten worse over time. No unusual cleaning, harsh chemicals or other abrasive object were used. The nature of film is slick issue is inconsistent with this and does not appear on other parts of the user interface - just the more important ones. Porsche NA initially blamed the dealership, and then later denied my claim and now escalating.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11736422May 7, 2026
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
On 3 separate occasions while making a left hand turn against traffic, the car has initiated emergency braking and shown the ‘collision warning’ alert on the dashboard. Each time there were no cars approaching and the car halted to a complete stop. The first two instances I had my 10 year old in the car. Tonight I was alone. It is terrifying and I know this is not a rare occurrence with Porsches. An online forum has tons of other Porsche owners saying the same thing and we are being encouraged to file a report with NHTSA.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11735314May 2, 2026
FUEL/PROPULSION SYSTEM, ELECTRICAL SYSTEM
The high-voltage battery pack in my 2018 Porsche Cayenne S E-Hybrid (VIN: [XXX] , approximately 81,000 miles) has experienced a noticeable and progressive reduction in battery range and performance. On February 20, 2026, Porsche White Plains (an authorized Porsche dealer) performed an inspection but was unable to duplicate an active fault code and declined to generate a battery State of Health (SoH%) report. No warranty repair was authorized. Porsche Cars North America (PCNA), Case #XXX, has since moved to close my statutory warranty claim, citing the absence of a duplicated fault. However, under New York State's adopted CARB emission warranty standards (6 NYCRR § 218-9.1), high-voltage propulsion batteries in TZEV/PZEV vehicles are warranted for 10 years or 150,000 miles from the date of original sale. My vehicle was placed in service in 2018 and remains within that statutory coverage window through 2028. PCNA has not addressed this statutory obligation or provided written confirmation of coverage. I also have not received the inspection documentation I formally requested on March 17, 2026, despite no case closure having occurred at the time of that request. As of the date of this filing, PCNA has not responded to my follow-up correspondence. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734672April 29, 2026
SEAT BELTS, AIR BAGS
Seat belt and airbag indication lights and sound alarms remain on and notifying on the dashboard regardless of buckling. It will intermittently stop and start as the car is in motion. In the beginning, notification was present then resolved day-to-day. More recently, the alarm is present every drive. Driver was unsure whether or not the notifications were valid or not as the pattern of notification had little consistency. Dealership service later admitted that it was a faulty seat belt buckle and that part had failed internally, but refused to remedy it unless paid for. Car is essentially inoperable and unsafe until faulty buckle is replaced, as a faulty seat belt buckle can be fatal, with faulty implying a manufacturing issue and not of user misuse or abuse of systems. Manufacturer will not provide warranty and dealership continues to demand vehicle owner to pay.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734234April 28, 2026
ENGINE
sudden total drivetrain failure at 52k mi with no warning, child passenger, prior dealer-documented leak that was not escalated.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731520April 16, 2026
SEAT BELTS
The contact owns a 2020 Porsche Cayenne. The contact stated that the front driver’s side seat belt failed to buckle and became unusable. The dealer and the manufacturer were notified of the failure. The contact was advised to schedule an appointment for the vehicle to be repaired at the owner's expense. The vehicle was not diagnosed or repaired. The contact related the failure to an unknown recall. The failure mileage was approximately 68,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731119April 14, 2026
POWER TRAIN, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729733April 7, 2026
SERVICE BRAKES
Vehicle: 2020 Porsche Cayenne VIN: [XXX] Mileage: 41,918 Complaint: My 2020 Porsche Cayenne exhibits a significant and repeatable lurching and abnormal braking pattern each time the vehicle decelerates to a stop. The behavior is consistent and pronounced enough to cause me physical motion sickness on every drive. I brought the vehicle to Porsche Bellevue (Bellevue, WA) for diagnosis. The service manager personally rode in the vehicle with me, experienced the lurching behavior firsthand, and acknowledged feeling it. He then stated the vehicle could not be repaired because this is simply how the car behaves — no repair order was written and no fix was attempted. I am filing this complaint because: (1) the behavior involves abnormal braking and deceleration which I believe constitutes a safety concern, (2) the authorized dealership confirmed the issue exists but refused to document or repair it, and (3) I am concerned other owners of this vehicle may be experiencing the same issue without recourse. I am requesting NHTSA investigate whether this is a known issue across the 2020 Porsche Cayenne platform and whether it meets the threshold for a safety investigation or recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729798April 7, 2026
AIR BAGS, STRUCTURE:BODY
The leather dash has "shrunk" so badly and is so distorted that there is no way the passenger airbag would properly inflate in an accident. Porsche tells me that this defect is "cosmetic" and of no consequence to vehicle safety. I do not agree with this position and feel that Porsche should be liable for this defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729786April 7, 2026
ELECTRICAL SYSTEM, SERVICE BRAKES, BACK OVER PREVENTION: WARNINGS
My 2025 Porsche Cayenne S was involved in a low-speed crash and experienced multiple safety failures related to the Driver Assistance Control Unit, including phantom braking and camera failure. This crash, I believe, is a direct result of the safety defect identified in Recall ASB2 (NHTSA 25V896), which causes the Driver Assistance Control Unit to fail to process image and sensor data correctly. My vehicle has exhibited a dangerous pattern of electronic and sensor instability that aligns perfectly with the technical failures described in the recall: The Collision: While reversing in a parking garage on November 25, 2025, I struck a wall because the rearview camera and parking sensors failed to provide any notification or visual feed. I now understand this was caused by the "transient signal noise" cited in the recall, which prevents the system from detecting obstacles in specific lighting environments. Phantom Braking: On two separate occasions, the vehicle abruptly "slammed" on the brakes for no apparent reason, nearly causing high-speed rear-end collisions. When reported to The Collection Porsche Service on January 23, 2026, the Service Manager admitted the system is hypersensitive to shadows. This confirms the control unit is failing to correctly interpret image data—the exact root cause of the current recall. Total Electrical Failure: On December 2, 2025, the vehicle suffered a defective alternator, causing a total shutdown in a live intersection. This resulted in a seven-week repair (completed Jan 23, 2026). Unstable voltage from a failing alternator is a primary source of the "signal noise" that causes the driver assistance systems to malfunction. I initially believed the bumper contact was a personal error. However, given the documented failure of the alternator and the subsequent recall regarding camera/sensor data processing, it is clear that the vehicle’s safety systems were compromised at the time of the incident. Porsche NA has been notified.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11724527March 16, 2026
ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM
This vehicle qualified for the Volkswagen Emissions Recall, yet from the start of the recall through 2018 settlement lawsuit dates , no correspondence was sent (by Porsche nor VW). According to all recall regulations, my vehicle should have among the ‘recall’ with the 85K plus others, yet no correspondence was sent (by Porsche nor VW) & now the local Porsche dealership is denying in, According to all recall regulations, even still with the EPA, the vehicle was to receive an initial emissions test, then undergo all related repairs/part replacements before the issue resulted in toxic emissions, NOX sensor failures, & premature problems with the DPF system, leading to thermostat problems & the failure of the diesel turbo. Federal regs mandate that vehicle & vehicle equipment manufacturers comply with Early Warning Reporting requirements, submit to NHTSA copies of their manufacturer communications. & update all communications including warranty, policy extensions & product improvement communication sent to dealers, distributors, owners, purchasers, etc. regarding any defect, failure or malfunction beyond normal deterioration in use, failure of performance, flaw or other unintended deviation from design specifications whether it is safety-related or not. Porsche now says my vehicle never showed the recall, despite court mandates that all affected vehicles will be notified communication failed on the sides of both manufacturers. In 2026, if one possesses an eligible vehicle but never received a "Dieselgate" recall notice, options for financial compensation from the original U.S. settlements stated to be likely limited, & I’m not able to find how to proceed with Volkswagen, but regardless, according to EPA and all vehicle standards, I read my vehicle is still entitled to receive an emissions modification at no cost, and that I should be covered by an extended emissions warranty to address all current & related issues.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724647March 16, 2026
SUSPENSION, AIR BAGS, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The contact owned a 2025 Porsche Cayenne E-Hybrid Coupe. The contact stated that while driving at an undisclosed speed, the automatic emergency braking system inadvertently deactivated. The automatic emergency braking system and passenger air bag warning lights were illuminated. Additionally, the suspension started lowering. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The vehicle was not repaired. The contact no longer owned the vehicle. The manufacturer was made aware of the failure. The failure mileage was approximately 1,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723260March 10, 2026
BACK OVER PREVENTION
The contact owns a 2021 Porsche Cayenne. The contact received notification of NHTSA Campaign Number: 25V896000 (Back Over Prevention); however, the part to do the recall repair was not yet available. The contact stated that while in reverse(R), the rearview camera failed to display a clear image on the screen. No warning light was illuminated. In addition, the rear vehicle detection sensor failed to alert the driver of a nearby vehicle. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 48,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722935March 9, 2026
FUEL SYSTEM, GASOLINE
The contact owns a 2009 Porsche Cayenne. The contact stated that there was an abnormal fuel odor inside the vehicle. The contact stated there was visible damage to the fuel tank flange, and there was a leak coming from the fuel tank. The contact stated that the OBD port provided a code and that the fuel was too lean, causing the RPM to fluctuate. The vehicle was taken to an independent mechanic for throttle body repair, but the failure persisted. A dealer was not contacted. The manufacturer was not notified of the failure. The failure mileage was 157,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722824March 8, 2026
AIR BAGS
Bubbled dashboard is considered as a safety issue that airbag may NOT be properly deployed when an accident occurs.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722337March 5, 2026
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
At approximately 57 miles after delivery of a new 2025 Porsche Cayenne, the Adaptive Cruise Control (ACC) and related driver-assistance safety systems failed while the vehicle was traveling at approximately 67 mph. There had been no collision, impact, or abnormal event prior to the failure. Porsche’s diagnostic logs (PIWIS) confirmed the system failure occurred while the vehicle was traveling at approximately 67 mph. A physical inspection of the vehicle showed no evidence of collision, abnormal G-force event, or exterior damage that would explain the system failure. The malfunction disabled a key driver-assistance safety feature on a nearly new vehicle. The vehicle was returned to the selling dealer for repair and the manufacturer, Porsche Cars North America, was notified. Both the dealer and manufacturer indicated that the issue was not considered a defect and declined to provide further explanation as to how such a failure could occur at extremely low mileage without any external factors. Given the extremely low mileage at which this safety system failure occurred, this may indicate a defect affecting the vehicle’s driver-assistance or ADAS systems. A failure of Adaptive Cruise Control and related driver-assistance systems at highway speed raises potential safety concerns for vehicle occupants and surrounding traffic. The failure occurred at extremely low mileage with no apparent triggering event, raising concern about a potential premature failure of a safety-related driver-assistance system.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721778March 3, 2026
FUEL/PROPULSION SYSTEM
I noticed a hesitation when I Pressed the gas pedal, I also noticed the smell of Gasoline when I parked it in my Garage. I had my Certified mechanic look at it and he told me there was a recall on the Fuel sending unit, creating a transfer case failure, apparently the flange breaks and leaks gas. I googled it and it confirms it. I called the local dealer and they have not called me back?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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