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What 21 owners told NHTSA about the 2020 Porsche Cayenne Coupe Platinum Edition

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 (21)Crash / fire / injury (2)Brakes (5)Engine (5)Electrical system (4)Transmission & drivetrain (4)Airbags (3)Seat belts (2)Speed control (2)Backup camera & sensors (1)Driver assistance (1)Visibility & wipers (1)

1 of 21 complaints match · Driver assistance · clear filters

Mar 3, 2026EngineDriver assistance

A coolant hose located on the top of the engine developed a leak that caused the engine to overheat. It was necessary to remove several components of the engine to reach and replace the leaking hose. This repair cost over 5000 dollars with the associated labor cost. Vehicle had less than 6000 miles on it at the time of the incident. It took several weeks to get the needed parts.

NHTSA ODI 11721832

Working with the data? Download all 21 complaints as CSV · fetched from NHTSA July 14, 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 2020 Porsche Cayenne Coupe Platinum Edition verdict →