Porsche 911 2019–2025 — technical service bulletin
Bulletin No. ASB2 · NHTSA communication 11033365 · issued May 4, 2026
Technical service bulletin
communication type
Electrical System
component
2019–2025
model years
27
vehicle entries
Official summary
Technical information for ASB2 - Re-Programming Assistance System Control Unit
Vehicles covered
- 2019 Porsche 911
- 2020 Porsche 911
- 2021 Porsche 911
- 2022 Porsche 911
- 2023 Porsche 911
- 2024 Porsche 911
- 2025 Porsche 911
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2024 Porsche Cayenne
- 2025 Porsche Cayenne
- 2019 Porsche Panamera
- 2020 Porsche Panamera
- 2021 Porsche Panamera
- 2022 Porsche Panamera
- 2023 Porsche Panamera
- 2024 Porsche Panamera
- 2025 Porsche Panamera
- 2020 Porsche Taycan
- 2021 Porsche Taycan
- 2022 Porsche Taycan
- 2023 Porsche Taycan
- 2024 Porsche Taycan
- 2025 Porsche Taycan
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.