Porsche 718 Boxster 2020–2026 — technical service bulletin
Bulletin No. 05-26-1 · NHTSA communication 11029198 · issued Feb 26, 2026
Technical service bulletin
communication type
Electrical System
component
2020–2026
model years
39
vehicle entries
Official summary
Symptom based workshop manual for Various Noise Complaints on Loudspeakers - Rattling/Clattering/Whirring: Observe Procedure Before Replacing Loudspeakers
Vehicles covered
- 2020 Porsche 718 Boxster
- 2021 Porsche 718 Boxster
- 2022 Porsche 718 Boxster
- 2023 Porsche 718 Boxster
- 2025 Porsche 718 Boxster
- 2026 Porsche 718 Boxster
- 2020 Porsche 718 Cayman
- 2021 Porsche 718 Cayman
- 2022 Porsche 718 Cayman
- 2023 Porsche 718 Cayman
- 2026 Porsche 718 Cayman
- 2020 Porsche 911
- 2021 Porsche 911
- 2022 Porsche 911
- 2023 Porsche 911
- 2024 Porsche 911
- 2025 Porsche 911
- 2026 Porsche 911
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2024 Porsche Cayenne
- 2025 Porsche Cayenne
- 2026 Porsche Cayenne
- 2020 Porsche Macan
- 2021 Porsche Macan
- 2022 Porsche Macan
- 2023 Porsche Macan
- 2024 Porsche Macan
- 2025 Porsche Macan
- 2026 Porsche Macan
- 2020 Porsche Panamera
- 2021 Porsche Panamera
- 2022 Porsche Panamera
- 2023 Porsche Panamera
- 2024 Porsche Panamera
- 2025 Porsche Panamera
- 2026 Porsche Panamera
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.