2009 Porsche Cayenne Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2009 Porsche Cayenne, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Powertrain (other)526.3%
- Fuel system421.1%
- Electrical421.1%
- Other / unspecified15.3%
- Tires & wheels15.3%
- Driver assistance15.3%
- Transmission15.3%
- Interior & seats15.3%
- Exterior lighting15.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
DRIVE SHAFT GOES OFF UNEXPECTEDLY RESULTING IN VIOLENT SHAKING OF VEHICLE AND LOSS OF CONTROL WHILE VEHICLE WAS IN MOTION
DRIVE SHAFT MOUNT FAILED
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
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.
Fuel leaking from fuel tank
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
Odometer Fraud. The contact purchased a 2009 Porsche Cayenne. The vehicle was a dealer sale. The contact stated that upon taking the vehicle to O’Reilly's for a diagnostic test, the diagnostic report listed the mileage at 209,000; however, at the time of purchase, the vehicle mileage was 105,000. The dealer was not notified of the discrepancy, as per the Attorney's advice.
DURING NORMAL COMMUTE TO WORK DRIVING, A MESSAGE "CHECK DIM BEAM" APPEARED ON THE DASHBOARD MESSAGE BOARD. UPON ATTEMPTING TO CHANGE A FAULTY DIM BEAM HEADLAMP BULB, I FOUND HEADLAMP HARNESS WIRING AND ALL INTERNAL HEADLAMP ASSEMBLY WIRING IS CRACKED AND CRUMBLING AND CONDUCTORS ARE EXPOSED AND CAUSING SHORTS AND APPARENT LAMP FAILURE. OTHER HEADLAMP LIGHTING (SIDE DIRECTIONAL LAMP) LIGHTING FLASHED ON AND OFF WHEN HARNESS WAS TOUCHED, AND OTHER COMPONENTS OF ELECTRICAL SYSTEM FLASHED AND TURNED OFF AND ON BY THEMSELVES, PARTICULARLY THE RADIO. WHEN THE SUSPECT DIM BEAM LAMP WAS SWAPPED WITH OPPOSITE (PASSENGER SIDE, THE REPLACEMENT LAMP DID NOT WORK BUT THE SUSPECT LAMP FROM DRIVER SIDE WORKED ON THE PASSENGER SIDE LEADING ME TO BELIEVE THE LAMP ASSEMBLY WAS SUSPECT. UPON OPENING THE ACCESS POINTS ON THE DRIVERS SIDE ASSEMBLY, THE WIRING WAS SEEN TO BE CRUMBLING AND UNSAFE. I AM WORRIED THAT A FIRE MAY START AND HAVE DISCONTINUED USE OF THE VEHICLE AT THIS TIME.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
UNABLE TO LISTEN TO RADIO STATIONS ON RADIO DUE TO STATIC NOISE AND HEAVY SOUND INTERFERENCES EVEN ON LOCAL NJ FM RADIO STATIONS. THIS DEFECT SUBSTANTIALLY IMPAIRS THE USE, VALUE OR SAFETY OF THE VEHICLE, AS THIS IS CAUSING DRIVER FRUSTRATION AND REDUCED DRIVER FOCUS WHICH I AM AFRAID WILL LEAD TO A POTENTIAL ACCIDENT DUE TO NOT BEING ABLE TO LISTEN OR LISTEN WITH STATIC AND HEAVY SOUND INTERFERENCES TO THE RADIO FOR NEWS, MUSIC AND RADIO TALK. THIS HAS BEEN CONFIRMED AND TESTED BY AN INDEPENDENT AUDIO PROFESSIONAL IN WRITING AND REPORT CONCLUSION IS "RADIO STATIONS NOT WORKING CORRECTLY, HEAVY INTERFERENCES. TESTED ON LOCAL NJ STATIONS 94.3FM AND 101.5FM", *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
THE ELECTRONICS ON THE CAR ARE SHOWING A SUSPENSION ISSUE. AND THE ELECTRONICS ON THE CAR DO NOT WORK FOR MORE THAN 5-7 MIN BEFORE SHUTDOWN AND RESTART. THIS INCLUDES RADIO, BLUETOOTH, GPS, ETC. WHEN THE ELECTRONICS START BACK UP THE RADIO IS TURNED ON. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
THE ELECTRONICS ON THE CAR ARE SHOWING A SUSPENSION ISSUE. AND THE ELECTRONICS ON THE CAR DO NOT WORK FOR MORE THAN 5-7 MIN BEFORE SHUTDOWN AND RESTART. THIS INCLUDES RADIO, BLUETOOTH, GPS, ETC. WHEN THE ELECTRONICS START BACK UP THE RADIO IS TURNED ON. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
THE ELECTRONICS ON THE CAR ARE SHOWING A SUSPENSION ISSUE. AND THE ELECTRONICS ON THE CAR DO NOT WORK FOR MORE THAN 5-7 MIN BEFORE SHUTDOWN AND RESTART. THIS INCLUDES RADIO, BLUETOOTH, GPS, ETC. WHEN THE ELECTRONICS START BACK UP THE RADIO IS TURNED ON. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
I WAS DRIVING HOME ABOUT 10:44 PM ON AUGUST 14 2019 WHEN I HEARD WHAT SOUNDED LIKE A EXPLOSION TO MY WINDOWS BUT I WAS AFRAID TO PULL OVER BECAUSE IT WAS A DARK ROAD SO I GOT TO THE FIRST GAS STATION AND CHECKED FOR DAMAGE WINDOWS BUT COME TO FIND OUT IT WAS THE DRIVERS BACK SEAT WHICH HAD I GUES SWOLLEN AND BUST OUT OR COMPLETELY DISENGAGED FROM THE BOTTOM OF THE SEAT.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
DURING NORMAL COMMUTE TO WORK DRIVING, A MESSAGE "CHECK DIM BEAM" APPEARED ON THE DASHBOARD MESSAGE BOARD. UPON ATTEMPTING TO CHANGE A FAULTY DIM BEAM HEADLAMP BULB, I FOUND HEADLAMP HARNESS WIRING AND ALL INTERNAL HEADLAMP ASSEMBLY WIRING IS CRACKED AND CRUMBLING AND CONDUCTORS ARE EXPOSED AND CAUSING SHORTS AND APPARENT LAMP FAILURE. OTHER HEADLAMP LIGHTING (SIDE DIRECTIONAL LAMP) LIGHTING FLASHED ON AND OFF WHEN HARNESS WAS TOUCHED, AND OTHER COMPONENTS OF ELECTRICAL SYSTEM FLASHED AND TURNED OFF AND ON BY THEMSELVES, PARTICULARLY THE RADIO. WHEN THE SUSPECT DIM BEAM LAMP WAS SWAPPED WITH OPPOSITE (PASSENGER SIDE, THE REPLACEMENT LAMP DID NOT WORK BUT THE SUSPECT LAMP FROM DRIVER SIDE WORKED ON THE PASSENGER SIDE LEADING ME TO BELIEVE THE LAMP ASSEMBLY WAS SUSPECT. UPON OPENING THE ACCESS POINTS ON THE DRIVERS SIDE ASSEMBLY, THE WIRING WAS SEEN TO BE CRUMBLING AND UNSAFE. I AM WORRIED THAT A FIRE MAY START AND HAVE DISCONTINUED USE OF THE VEHICLE AT THIS TIME.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .