2021 Porsche Cayman Problems: 1 Issues Every Owner Should Know
2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated June 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Porsche Cayman has 1 documented known issues, with 1 rated critical. The most serious is 718 Cayman (982) Gasoline Particulate Filter (GPF/OPF) Failure ($2,500-$7,500 repair). Across all issues, repair costs range from $2,500 to $7,500. DIY maintenance guides at au7o.io.