AI DamagePorsche Cayman GT4: problems, complaints, bulletins
Summary for the Porsche Cayman GT4 across 3 model years: 0 owner complaints and 384 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 189 |
| Electrical system | 0 | 0 | 140 |
| Equipment | 0 | 0 | 112 |
| Structure | 0 | 0 | 70 |
| Engine and cooling | 0 | 0 | 57 |
| Powertrain | 0 | 0 | 49 |
| Wheels | 0 | 0 | 33 |
| Fuel/propulsion system | 0 | 0 | 23 |
| Suspension | 0 | 0 | 22 |
| Service brakes | 0 | 0 | 21 |
| Visibility | 0 | 0 | 21 |
| Steering | 0 | 0 | 14 |
| Seats | 0 | 0 | 9 |
| Backover prevention | 0 | 0 | 6 |
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
- Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
- Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
- Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
- Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
- Manufacturer's Certificate for Overview of Approved Porsche A40 Engine Oils
- Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
- Special Tools and Equipment Information for Diagnostic Equipment Standards for all USA Porsche Centers
- Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.