Porsche 718 Cayman 2021–2023 — technical service bulletin
Bulletin No. 155-21-1 · NHTSA communication 10219445 · issued Aug 26, 2022
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
18
vehicle entries
Official summary
Technical information for WML0 - retrofitting loudspeaker booster on the Cayenne 2021-2023.
Vehicles covered
- 2022 Porsche 718 Cayman
- 2022 Porsche 718 Cayman GT4
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2021 Porsche Cayenne E-Hybrid
- 2022 Porsche Cayenne E-Hybrid
- 2021 Porsche Cayenne GT
- 2022 Porsche Cayenne GT
- 2021 Porsche Cayenne GTS
- 2022 Porsche Cayenne GTS
- 2021 Porsche Cayenne S
- 2022 Porsche Cayenne S
- 2021 Porsche Cayenne Turbo S E-Hybrid
- 2022 Porsche Cayenne Turbo S E-Hybrid
- 2021 Porsche Cayman
- 2021 Porsche Cayman GT4
- 2022 Porsche Cayman GTS
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.