WenmarOpen by Wenmar Pro

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

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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. 32-212021-04-06. Service bulletin. ELECTRICAL SYSTEM. Spare Part Requirements for 12-Volt Vehicle Electrical System Battery on the Taycan.
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. 16-212021-04-02. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop campaign WMA6 - Updating Software for Various Control Units.
No. 35-212021-04-02. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop Campaign WMB4 - Replacing High-Voltage Charger.
No. 37-212021-04-02. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop Campaign WMB6 - Replacing High-Voltage Charger.
No. 25-212021-04-02. Service bulletin. ELECTRICAL SYSTEM. Porsche service campaign information for Workshop Campaign WMB1 - Re-Programming High-Voltage Battery Control Unit.
WLM72021-03-02. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with preliminary information for WLM7 Workshop Campaign - Supplying Mobile Charger Equipment.
WMB42021-03-02. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with preliminary information on Workshop campaign WMB4 Stop Delivery - Replacing19.2 kW high-voltage-charger.
No. 20-212021-03-02. Service bulletin. ELECTRICAL SYSTEM. Spare parts information for HV components.
No. 21012021-03-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Advanced technical information on how to fix the issue of Sirius XM not being available on the Taycan.
No. 21062021-03-02. Service bulletin. ELECTRICAL SYSTEM. Special tools information for High Voltage Protective Gear Requirements.
No. 165-202021-02-02. Service bulletin. SEAT BELTS; ELECTRICAL SYSTEM. Porsche service campaign information for Workshop campaign WLK3 - Checking Electric Plug Connection for Rear Seat-Belt Buckles and Plugging it in Correctly if Necessary.
No. 21002021-02-02. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for deactivating the power line communication on the Taycan for Pre Delivery Inspection.
No. 2003.12021-02-02. Service bulletin. ELECTRICAL SYSTEM. Advanced Technical information for what to do in the event that the Taycan 12V Li-ion Batteries Fault Code Cannot Be Cleared.
No. 204-202021-02-02. Service bulletin. ELECTRICAL SYSTEM. Instructions for replacing the DME control unit.
No. 215-202021-02-01. Service bulletin. ELECTRICAL SYSTEM. Instructions on what to do if the driver readiness cannot be established or the 12V battery is discharged.
No. 209-202021-01-05. Service bulletin. ELECTRICAL SYSTEM. Information on possible discharging of the Taycan's 12V battery after charging the HV battery.
No. 204-202021-01-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Instructions for replacing the DME in the Taycan.

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