Jun 3, 2019Electrical systemElectronic Stability Control (esc)Fuel system
HYBRID DEFAULT MULTIPLE TIMES IN PAST YEARS ELECTRICAL SYSTEM? FAULT GENERATOR CHECK ENGINE LIGHT
NHTSA ODI 11217457
Home · 2012 Porsche Cayenne S · Complaints
What 33 owners told NHTSA about the 2012 Porsche Cayenne S
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 (33)Crash / fire / injury (1)Transmission & drivetrain (17)Engine (6)Electrical system (2)Fuel system (2)Seats (2)Airbags (1)Brakes (1)Electronic Stability Control (esc) (1)Equipment Adaptive/mobility (1)Speed control (1)
2 of 33 complaints match · Fuel system · clear filters
Jan 5, 2019Speed controlEngineFuel system
THIS VEHICLE SUFFERS UNKNOWN HYBRID SYSTEM FAILURE. IT CAUSED THE VEHICLE TO LOSE POWER ABRUPTLY WHILE IN MOTION ON THE HIGHWAY OR ON A CITY STREET WITHOUT ANY PRIOR WARNING. THE VEHICLE COULD NOT TRAVEL MORE THAN 20 MILES ON AUTOMATIC; UNLESS IT IS SWITCHED TO MANUAL SHIFT GEAR. THIS VEHICLE HAD SUBMITTED TO THE DEALER FOR DIAGNOSIS AND CONCLUSION WAS MADE AS THIS WAS CAUSED BY THE BATTERY FAILURE. HOWEVER, WITHIN THREE WEEKS AFTER REPAIR; THE HYBRID SYSTEM FAILED AGAIN. THE TECHNICIAN THEN RE-DETERMINED THE CAUSE AS A) FAULTY HIGH POWER VOLTAGE LINE AND COMPRESSOR, AND B) REPLACE HIGH VOLTAGE LINE AND COMPRESSOR.
NHTSA ODI 11165314
Working with the data? Download all 33 complaints as CSV · fetched from NHTSA July 21, 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 2012 Porsche Cayenne S verdict →