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What 12 owners told NHTSA about the 2017 Porsche Cayenne S E-hybrid

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 (12)Crash / fire / injury (1)Engine (3)Airbags (2)Electrical system (2)Lights (2)Transmission & drivetrain (2)Body & structure (1)Brakes (1)Fuel system (1)

2 of 12 complaints match · Transmission & drivetrain · clear filters

Apr 20, 2023Transmission & drivetrain

The contact owns a 2017 Porsche Cayenne. The contact stated while driving approximately 30 MPH, the vehicle stalled in the middle of a road. The contact stated no warning light was illuminated; however, the contact had been hearing an abnormal rattle and knocking sound from under the floorboard. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the bolts from the transfer case had loosened, and the case had separated from the drive shaft. The vehicle had been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 42,000.

NHTSA ODI 11518090

Oct 6, 2017Transmission & drivetrainElectrical systemEngine

TL* THE CONTACT OWNS A 2017 PORSCHE CAYENNE S E-HYBRID. WHILE DRIVING 35 MPH, THE VEHICLE STALLED AND LOST POWER. THE CHECK ENGINE WARNING INDICATOR ILLUMINATED AND A WARNING MESSAGE THAT READ "ENGINE FAILURE, DRIVE ON POSS" APPEARED. THE CONTACT WAS ABLE TO COAST THE VEHICLE OVER TO A DRIVEWAY. THE VEHICLE RESTARTED ON THE FIRST ATTEMPT, BUT FAILED TO ACCELERATE. THE VEHICLE WAS TOWED TO THE LOCAL DEALER (PORSCHE OF ARLINGTON, 3100 JEFFERSON DAVIS HWY, ARLINGTON, VA, 22202) WHERE IT WAS DIAGNOSED THAT THE THROTTLE FAILED AND A SOFTWARE UPDATE WAS REQUIRED. THE VEHICLE WAS REPAIRED WITH A NEW THROTTLE AND SOFTWARE UPDATE; HOWEVER, LESS THAN 24 HOURS LATER, THE FAILURE RECURRED. THE DEALER WAS NOTIFIED AND THE VEHICLE WAS TOWED AGAIN. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER STATED THAT THEY WOULD HAVE THE CASE ESCALATED AND SOMEONE WOULD RETURN THE CALL. NO ADDITIONAL ASSISTANCE WAS PROVIDED. THE FAILURE MILEAGE WAS APPROXIMATELY 2,600.

NHTSA ODI 11032080

Working with the data? Download all 12 complaints as CSV · fetched from NHTSA July 24, 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 2017 Porsche Cayenne S E-hybrid verdict →