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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)

3 of 12 complaints match · Engine · clear filters

Jun 3, 2024Engine

Broken and loosened timing chain cover bolts resulting in leaking oil onto drive components, belts and tires/brakes. This recall was done for the Macan and not the Cayenne. Ours was covered under factory extended warranty. That said, this is criminal. Porsche needs to be investigated, they refuse to recall their vehicles and we all know there are some manufaturing issues that are 100% the factory's fault. If the NTSB refuses to hold their feet to the fire this type of engineering will continue.

NHTSA ODI 11592066

Apr 20, 2024Engine

Oil leaks from timing chain cover due to defective bolt material, bolts loosen and break. This is a widespread known issue with Cayennes and Macans.

NHTSA ODI 11584249

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 →