Porsche 911 2019–2026 — technical service bulletin
Bulletin No. 11-25-4 · NHTSA communication 11037046 · issued Aug 25, 2026
Technical service bulletin
communication type
Lane Departure
component
2019–2026
model years
60
vehicle entries
Official summary
Technical Information for White Messages Regarding Driver Assistance Systems in Conjunction with Passive Fault Memory Entries in the ZFAS Control Unit
Vehicles covered
- 2020 Porsche 911
- 2021 Porsche 911
- 2022 Porsche 911
- 2023 Porsche 911
- 2024 Porsche 911
- 2025 Porsche 911
- 2026 Porsche 911
- 2022 Porsche 911 4S
- 2020 Porsche 911 Carrera
- 2021 Porsche 911 Carrera
- 2022 Porsche 911 Carrera
- 2023 Porsche 911 Carrera
- 2024 Porsche 911 Carrera
- 2025 Porsche 911 Carrera
- 2026 Porsche 911 Carrera
- 2023 Porsche 911 Carrera 4
- 2022 Porsche 911 Carrera 4 GTS
- 2023 Porsche 911 Carrera 4 GTS
- 2023 Porsche 911 Carrera 4S
- 2022 Porsche 911 Carrera GTS
- 2023 Porsche 911 Carrera GTS
- 2024 Porsche 911 Carrera GTS
- 2020 Porsche 911 Carrera S
- 2021 Porsche 911 Carrera S
- 2023 Porsche 911 Carrera S
- 2023 Porsche 911 Carrera T
- 2024 Porsche 911 Carrera T
- 2023 Porsche 911 Dakar
- 2024 Porsche 911 Dakar
- 2021 Porsche 911 GT3
- 2022 Porsche 911 GT3
- 2023 Porsche 911 GT3
- 2024 Porsche 911 GT3
- 2025 Porsche 911 GT3
- 2026 Porsche 911 GT3
- 2023 Porsche 911 GT3 RS
- 2024 Porsche 911 GT3 RS
- 2022 Porsche 911 GT3 Touring
- 2023 Porsche 911 GT3 Touring
- 2020 Porsche 911 Targa 4
- 2021 Porsche 911 Targa 4
- 2023 Porsche 911 Targa 4
- 2023 Porsche 911 Targa 4S
- 2023 Porsche 911 Targa GTS
- 2020 Porsche 911 Turbo
- 2021 Porsche 911 Turbo
- 2022 Porsche 911 Turbo
- 2023 Porsche 911 Turbo
- 2024 Porsche 911 Turbo
- 2021 Porsche 911 Turbo S
- 2022 Porsche 911 Turbo S
- 2023 Porsche 911 Turbo S
- 2024 Porsche 911 Turbo S
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2024 Porsche Cayenne
- 2025 Porsche Cayenne
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.