Porsche Cayenne 2019–2021 — technical service bulletin
Bulletin No. 77-22 · NHTSA communication 11022914 · issued Aug 15, 2025
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
20
vehicle entries
Official summary
Technical information for Various PCM Central Computer Fault Corrections: Re-Program PCM Central Computer and Head-up Display Control Unit if Necessary
Vehicles covered
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2019 Porsche Cayenne E-Hybrid
- 2020 Porsche Cayenne E-Hybrid
- 2021 Porsche Cayenne E-Hybrid
- 2020 Porsche Cayenne GT
- 2021 Porsche Cayenne GT
- 2021 Porsche Cayenne GTS
- 2019 Porsche Cayenne S
- 2020 Porsche Cayenne S
- 2021 Porsche Cayenne S
- 2020 Porsche Cayenne S E-Hybrid
- 2019 Porsche Cayenne Turbo
- 2020 Porsche Cayenne Turbo
- 2020 Porsche Cayenne Turbo Coupe
- 2019 Porsche Cayenne Turbo S E-Hybrid
- 2020 Porsche Cayenne Turbo S E-Hybrid
- 2021 Porsche Cayenne Turbo S E-Hybrid
- 2020 Porsche Cayenne Turbo S Hyb Coupe
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.