Porsche 911 2018–2023 — technical service bulletin

Bulletin No. 31-20 · NHTSA communication 10231325 · issued Jan 6, 2023

Technical service bulletin

communication type

Electrical System

component

2018–2023

model years

vehicle entries

Official summary

Technical information for a diagnosis and handling of the 12 volt battery (on-board battery)

Vehicles covered

2020 Porsche 911
2021 Porsche 911
2022 Porsche 911
2023 Porsche 911
2022 Porsche 911 4S
2020 Porsche 911 Carrera
2021 Porsche 911 Carrera
2022 Porsche 911 Carrera
2023 Porsche 911 Carrera
2020 Porsche 911 Carrera S
2021 Porsche 911 Carrera S
2023 Porsche 911 Carrera S
2018 Porsche Cayenne
2019 Porsche Cayenne
2020 Porsche Cayenne
2021 Porsche Cayenne
2022 Porsche Cayenne
2023 Porsche Cayenne
2020 Porsche Cayenne GT
2021 Porsche Cayenne GT
2022 Porsche Cayenne GT
2021 Porsche Cayenne GTS
2022 Porsche Cayenne GTS
2023 Porsche Cayenne GTS
2018 Porsche Cayenne S
2019 Porsche Cayenne S
2020 Porsche Cayenne S
2021 Porsche Cayenne S
2022 Porsche Cayenne S
2023 Porsche Cayenne S
2018 Porsche Cayenne Turbo
2019 Porsche Cayenne Turbo
2020 Porsche Cayenne Turbo
2023 Porsche Cayenne Turbo
2020 Porsche Cayenne Turbo Coupe
2020 Porsche Taycan
2021 Porsche Taycan
2022 Porsche Taycan
2023 Porsche Taycan
2020 Porsche Taycan 4S
2021 Porsche Taycan 4S
2022 Porsche Taycan 4S

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.