2021 Porsche Cayenne Turbo S E-Hybrid: common problems
The maker issued 487 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 487
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 156 |
| Engine | 0 | 0 | 85 |
| Equipment | 0 | 0 | 48 |
| Engine and cooling | 0 | 0 | 28 |
| Structure | 0 | 0 | 27 |
| Visibility | 0 | 0 | 24 |
| Powertrain | 0 | 0 | 23 |
| Service brakes | 0 | 0 | 13 |
| Fuel/propulsion system | 0 | 0 | 12 |
| Wheels | 0 | 0 | 12 |
| Suspension | 0 | 0 | 7 |
| Seats | 0 | 0 | 5 |
| Backover prevention | 0 | 0 | 4 |
| Forward collision avoidance | 0 | 0 | 4 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
- Porsche intranet posting with Campaign WTK4 information
- Technical Information for Campaign WTK4 – Reset Vehicle Electrical System Battery
- Symptom-based workshop manual for Noises from Front Wiper Blade
- Technical Information for Need to Replace Components of the High-Voltage Battery - High-Voltage Battery…
Technical Information for Need to Replace Components of the High-Voltage Battery - High-Voltage Battery Control Unit / Cell module; No Mixed Installation Permitted: Observe Specified Approach
- 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
- Technical Information for Vehicle Color in Front Display/Control Panel Wrong after Replacing Central…
- Technical Information for Filler Flap on Vehicles with Hybrid Drive System (PHEV) Does Not Close
- Technical Information for Yellow Warning Message “All-Wheel Drive System Malfunction”, “C12BEF6” and…
Technical Information for Yellow Warning Message “All-Wheel Drive System Malfunction”, “C12BEF6” and “C133700” in the All-Wheel Electronics Control Unit
- Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
NHTSA lists 487 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Porsche Cayenne Turbo S E-Hybrid?
There are no owner complaints in the NHTSA data for this year; the data comes from 487 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Porsche Cayenne Turbo S E-Hybrid?
NHTSA lists 487 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 Porsche Cayenne Turbo S E-Hybrid from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
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.