Porsche 911 2018–2026 — technical service bulletin
Bulletin No. 31-20 · NHTSA communication 11032273 · issued Apr 8, 2026
Technical service bulletin
communication type
Electrical System
component
2018–2026
model years
60
vehicle entries
Official summary
Technical information for Diagnosis and Handling of 12-Volt Lithium-Ion Battery (Vehicle Electrical System Battery)
Vehicles covered
- 2018 Porsche 911
- 2019 Porsche 911
- 2020 Porsche 911
- 2021 Porsche 911
- 2022 Porsche 911
- 2023 Porsche 911
- 2024 Porsche 911
- 2025 Porsche 911
- 2026 Porsche 911
- 2018 Porsche Cayenne
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2024 Porsche Cayenne
- 2025 Porsche Cayenne
- 2026 Porsche Cayenne
- 2024 Porsche Cayenne Coupe
- 2025 Porsche Cayenne Coupe
- 2026 Porsche Cayenne Coupe
- 2020 Porsche Taycan
- 2021 Porsche Taycan
- 2022 Porsche Taycan
- 2023 Porsche Taycan
- 2024 Porsche Taycan
- 2025 Porsche Taycan
- 2026 Porsche Taycan
- 2026 Porsche Taycan 4
- 2021 Porsche Taycan 4 Cross Turismo
- 2022 Porsche Taycan 4 Cross Turismo
- 2023 Porsche Taycan 4 Cross Turismo
- 2024 Porsche Taycan 4 Cross Turismo
- 2025 Porsche Taycan 4 Cross Turismo
- 2026 Porsche Taycan 4 Cross Turismo
- 2020 Porsche Taycan 4S
- 2021 Porsche Taycan 4S
- 2022 Porsche Taycan 4S
- 2023 Porsche Taycan 4S
- 2024 Porsche Taycan 4S
- 2025 Porsche Taycan 4S
- 2026 Porsche Taycan 4S
- 2021 Porsche Taycan 4S Cross Turismo
- 2022 Porsche Taycan 4S Cross Turismo
- 2023 Porsche Taycan 4S Cross Turismo
- 2024 Porsche Taycan 4S Cross Turismo
- 2025 Porsche Taycan 4S Cross Turismo
- 2026 Porsche Taycan 4S Cross Turismo
- 2020 Porsche Taycan Cross Turismo
- 2021 Porsche Taycan Cross Turismo
- 2022 Porsche Taycan Cross Turismo
- 2023 Porsche Taycan Cross Turismo
- 2022 Porsche Taycan GTS
- 2023 Porsche Taycan GTS
- 2024 Porsche Taycan GTS
- 2022 Porsche Taycan GTS Sport Turismo
- 2023 Porsche Taycan GTS Sport Turismo
- 2024 Porsche Taycan GTS Sport Turismo
- 2025 Porsche Taycan GTS Sport Turismo
- 2026 Porsche Taycan GTS Sport Turismo
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.