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What 36 owners told NHTSA about the 2012 Porsche Cayenne Coupe 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.
2 of 36 complaints match · Speed control · 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
Apr 30, 2018Transmission & drivetrainSpeed control
2012 CAYENNE TURBO WITH 40096 MILEAGE AS OF TODAY. THE TRANSFER BOX WAS REPLACED IN APRIL 2016 AND APRIL 2018. COST AROUND $4,500 EACH TIME. TOTAL OF $9,000 REPAIR BILL.
NHTSA ODI 11091036
Working with the data? Download all 36 complaints as CSV · fetched from NHTSA July 21, 2026