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Service bulletins for the 2021 Porsche Taycan

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

970 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
No. 16-21-22021-05-05. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop campaign WMA6 - Updating Software for Various Control Units.
No. 34-21-22021-05-05. Service bulletin. ELECTRICAL SYSTEM. Spare parts requirements for the HV battery on the Taycan.
No. 12-212021-05-05. Service bulletin. WHEELS. List of approved wheels and tires for the Taycan as of 2020.
No. 52-212021-05-05. Service bulletin. ELECTRICAL SYSTEM. Information on how to deal with a potential cyber security breach.
No. 17-212021-05-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Porsche service campaign information for Workshop Campaign WMA7 - Performing Software Update for Charger (Porsche Mobile Charger Connect).
No. 16-21-12021-05-05. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop Campaign WMA6 - Updating Software for Various Control Units.
No. 57-212021-05-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Porsche service campaign information on Workshop campaign WMC7 - Supplying Charging Electronics (Porsche Mobile Charger Connect)
No. 21052021-05-05. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for a Taycan PCM displaying the message "check Sirius XM Antenna".
No. 34-21-12021-05-05. Service bulletin. ELECTRICAL SYSTEM. Information on spare parts requirements for the HV battery on the Taycan.
No. 21032021-05-05. Service bulletin. EQUIPMENT. Advanced technical information on how to correct German language being displayed in the Taycan PCM.
No. 21042021-05-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Advanced technical information on a warning for "Overtemperature" on the charging socket for the Taycan On Board Charger.
No. 224-202021-05-05. Service bulletin. ELECTRICAL SYSTEM. Information on how to correct a sloshing noise coming from water leaking into the rear footwell of the Taycan.
WMC72021-05-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Porsche intranet posting for Workshop campaign WMC7 - Supplying charging electronics (Porsche Mobile Charger Connect)
WMA72021-04-06. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on Workshop campaign WMA7 - Performing software update for charger.
WMB62021-04-06. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on Workshop campaign WMB6 with active customer contact -Replacing high-voltage charger.
WMA62021-04-06. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Porsche intranet information for Porsche workshop campaign WMA6 with customer letter -Updating software of various control units.
No. 49-21-12021-04-06. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Porsche recall campaign information for recall campaign AMA3 - Reworking Various Threaded Connections on the Chassis.
No. D4a2021-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Historical information on Porsche product evolution.
No. 32-212021-04-06. Service bulletin. ELECTRICAL SYSTEM. Spare Part Requirements for 12-Volt Vehicle Electrical System Battery on the Taycan.
No. 14-212021-04-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. List of approved C20 engine oils for new Porsche vehicles.
No. 11-212021-04-05. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. List of approved C40 engine oils for new Porsche vehicles.
No. 10-212021-04-05. Service bulletin. ENGINE AND ENGINE COOLING. List of approved C30 style engine oils for new Porsche vehicles.
No. 101-202021-04-05. Service bulletin. ELECTRICAL SYSTEM. Information on a procedure to follow if a PCM update cannot be performed or stops.
PIWIS2101m2021-04-05. Service bulletin. ELECTRICAL SYSTEM. Information for new Porsche PIWIS tester update #40.000.035
No. 02-212021-04-05. Service bulletin. WHEELS. List of approved wheels and tires for the Taycan.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.