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What 62 owners told NHTSA about the 2011 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 (62)Crash / fire / injury (2)Engine (33)Transmission & drivetrain (18)Airbags (3)Brakes (3)Electrical system (3)Engine & cooling (2)Lights (2)Speed control (2)Driver assistance (1)Electronic Stability Control (esc) (1)

1 of 62 complaints match · Electronic Stability Control (esc) · clear filters

Jun 23, 2017Electronic Stability Control (esc)BrakesEngine

VERY SCARY AND DANGEROUS EXPERIENCE ENGINE STALLED AFTER FILLING UP WITH GAS. THE VEHICLE REQUIRED TWO OR THREE ATTEMPTS TO START. I EXITED THE GAS STATION ONTO THE RAMP FOR THE INTERSTATE. THE CAR SUDDENLY LOCKED UP LESS THAN A MILE DOWN THE INTERSTATE WHILE DRIVING 70, MPH. THERE WAS NO POWER BRAKING OR POWER STEERING AT ALL. FORTUNATELY, I REMAINED IN THE FAR RIGHT LANE AND MOMENTUM CARRIED THE VEHICLE OFF THE NEXT EXIT RAMP BEFORE VEHICLE COMPLETELY SHUT OFF. I HAVE HAD A HOST OF OTHER ISSUES INCLUDING PSM FAILURES, START/STOP MODE DEACTIVATED ERRORS, IGNITION PROBLEMS, BRAKING ISSUES, UNNECESSARY REPAIRS, TIME/ENERGY, MISSED WORK, RENTAL CARS, MISDIAGNOSES, ETC. I AM CERTAIN THE SYMPTOMS ARE CONSISTENT WITH CAMSHAFT DEFECT AFFECTING MANY OTHER CAYENNE S, TURBO, AND PANAMERA S OWNERS PER SEVERAL INTERNET FORUM DISCUSSIONS. THIS IS REALLY DANGEROUS. I AM DISAPPOINTMENT EARLIER NOTIFICATIONS WERE NOT ISSUED AND I HOPE THIS MATTER IS ADDRESSED BEFORE SOMEONE DIES.

NHTSA ODI 11000763

Working with the data? Download all 62 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 2011 Porsche Cayenne verdict →