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What 33 owners told NHTSA about the 2016 Porsche Cayenne Diesel

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 (7)Airbags (6)Lights (6)Engine (5)Fuel system (4)Electrical system (3)Body & structure (1)Lane Departure (1)Speed control (1)Steering (1)

1 of 33 complaints match · Steering · clear filters

Dec 30, 2015Steering

AUTO START STOP FUNCTION. WHEN APPROACHING A STOP LIGHT, THE ENGINE WILL SHUT OFF WHILE CAR IS STILL MOVING SLOWLY. YOU LOSE ABILITY TO STEER VEHICLE WHILE MOVING (ALBEIT SLOWLY) WHEN THE AUTO START/STOP FUNCTION ENGAGES. THIS FUNCTION SHOULD ONLY OCCUR WHEN THE CAR IS STOPPED, NOT MOVING SLOWLY. *JS

NHTSA ODI 10817114

Working with the data? Download all 33 complaints as CSV · fetched from NHTSA July 25, 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 2016 Porsche Cayenne Diesel verdict →