Porsche Taycan 2020–2023 — technical service bulletin
Bulletin WTL5 · NHTSA communication 11037066 · issued Aug 24, 2026
Technical service bulletin
communication type
Power Train
component
2020–2023
model years
36
vehicle entries
Official summary
Porsche intranet posting for Campaign WTL5 Over-the-Air (OTA) Update– Reprogramming the high-voltage battery control unit (BMCe)
Vehicles covered
- 2020 Porsche Taycan
- 2021 Porsche Taycan
- 2022 Porsche Taycan
- 2023 Porsche Taycan
- 2021 Porsche Taycan 4 Cross Turismo
- 2022 Porsche Taycan 4 Cross Turismo
- 2023 Porsche Taycan 4 Cross Turismo
- 2020 Porsche Taycan 4S
- 2021 Porsche Taycan 4S
- 2022 Porsche Taycan 4S
- 2023 Porsche Taycan 4S
- 2021 Porsche Taycan 4S Cross Turismo
- 2022 Porsche Taycan 4S Cross Turismo
- 2023 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
- 2022 Porsche Taycan GTS Sport Turismo
- 2023 Porsche Taycan GTS Sport Turismo
- 2020 Porsche Taycan Turbo
- 2021 Porsche Taycan Turbo
- 2022 Porsche Taycan Turbo
- 2023 Porsche Taycan Turbo
- 2021 Porsche Taycan Turbo Cross Turism
- 2022 Porsche Taycan Turbo Cross Turism
- 2023 Porsche Taycan Turbo Cross Turism
- 2020 Porsche Taycan Turbo S
- 2021 Porsche Taycan Turbo S
- 2022 Porsche Taycan Turbo S
- 2023 Porsche Taycan Turbo S
- 2021 Porsche Taycan Turbo S Cross Turi
- 2022 Porsche Taycan Turbo S Cross Turi
- 2023 Porsche Taycan Turbo S Cross Turi
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.