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What 53 owners told NHTSA about the 2014 Porsche Cayenne

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (53)Crash / fire / injury (3)Transmission & drivetrain (17)Airbags (9)Electrical system (6)Body & structure (5)Engine (5)Fuel system (5)Lights (5)Speed control (5)Brakes (2)Wheels (2)

2 of 53 complaints match · Electrical system · crash/fire/injury only · clear filters

Jul 6, 2023Electrical systemBrakesEngine2 injuries

For the past nine years, my vehicle has recorded multiple safety issues (trunk not closing/breaking, check engine light, catalytic converter misfire, keyless electronic entry issues, glow bulb light, turn signal bulb light, windows not rolling up, leaking fluid on the passenger side, burning smell coming from the vents, electrical issues with the radio, sunroof intermittently not opening/closing and the key not turning the vehicle on. Over the past nine years, I have taken the vehicle to numerous Porsche dealerships per the federal mandate from Porsche USA / Porsche UK. To date, the Service Manager, Chris Sansbury and General Manager at Brian Harris Porsche, and Porsche USA, refuse to fix the vehicle. My vehicle is still under factory warranty. I am a person with multiple disabilities. The dealerships (Jim Ellis Porsche, Hennessy Porsche, Leith Porsche, Brian Harris Porsche) have charged me thousands of dollars. I have been extremely sick and desperately need your help. Please help me!

NHTSA ODI 11530716

Jun 4, 2018Electrical systemLightsBody & structureFire

TL* THE CONTACT OWNS A 2014 PORSCHE CAYENNE. THE CONTACT STATED THAT THERE WAS A SEPARATION BETWEEN THE BUMPER AND HEADLIGHTS. AS A RESULT, WATER ENTERED THE HEADLIGHT ASSEMBLIES AND CAUSED ELECTRICAL FAILURES. THE CONTACT STATED THAT THE HEADLAMP BULBS NEEDED TO BE REPLACED ON SEVERAL OCCASIONS. THE CONTACT ALSO STATED THAT THERE WAS EVIDENCE OF WATER DRAINING FROM UNDER THE DASHBOARD ONTO THE FLOORBOARD. ADDITIONALLY, THERE WAS A BURNING ODOR ON THE INSIDE AND THE OUTSIDE OF THE VEHICLE. THE CONTACT STATED THAT THE BURNING ODOR WAS MORE PREVALENT AFTER THE CATALYTIC CONVERTER WAS REPLACED PER A CLASS ACTION LAWSUIT. THE VEHICLE WAS TAKEN TO HENNESSEY PORSCHE (990 MANSELL RD, ROSWELL, GA 30076, (770) 643-6100) AND PORSCHE ATLANTA PERIMETER (4006 CARVER DR, ATLANTA, GA 30360, (888) 893-6299), BUT THE FAILURES COULD NOT BE DUPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 5,000. THE CONTACT STATED PORSCHE AND ITS VENDORS DAMAGED HER NEW TIRES. THE CONTACT REQUESTED THE TIRES BE PLUGGLED, BUT THE DEALERSHIP DECIDED TO DO OTHERWISE.

NHTSA ODI 11099474

Working with the data? Download all 53 complaints as CSV · fetched from NHTSA July 10, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2014 Porsche Cayenne verdict →