Porsche 911 2019–2025 — technical service bulletin
Bulletin No. ASB2 · NHTSA communication 11028565 · issued Feb 6, 2026
Technical service bulletin
communication type
Electrical System
component
2019–2025
model years
60
vehicle entries
Official summary
Technical information on ASB2 - Re-Programming Assistance System Control Unit (Stop Delivery/Recall Campaign)
Vehicles covered
- 2019 Porsche 911
- 2020 Porsche 911
- 2021 Porsche 911
- 2022 Porsche 911
- 2023 Porsche 911
- 2024 Porsche 911
- 2025 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
- 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
- 2019 Porsche 911 Carrera S
- 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
- 2019 Porsche 911 GT2
- 2019 Porsche 911 GT2 RS
- 2019 Porsche 911 GT3
- 2021 Porsche 911 GT3
- 2022 Porsche 911 GT3
- 2023 Porsche 911 GT3
- 2024 Porsche 911 GT3
- 2025 Porsche 911 GT3
- 2019 Porsche 911 GT3 RS
- 2023 Porsche 911 GT3 RS
- 2024 Porsche 911 GT3 RS
- 2022 Porsche 911 GT3 Touring
- 2023 Porsche 911 GT3 Touring
- 2019 Porsche 911 Targa 4
- 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
- 2019 Porsche 911 Turbo
- 2020 Porsche 911 Turbo
- 2021 Porsche 911 Turbo
- 2022 Porsche 911 Turbo
- 2023 Porsche 911 Turbo
- 2021 Porsche 911 Turbo S
- 2022 Porsche 911 Turbo S
- 2023 Porsche 911 Turbo S
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 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.