WenmarOpen by Wenmar Pro

Service bulletins for the 2021 Porsche 911

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.

750 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
No. 203-212022-03-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Information on vehicle sporadically not available via remote access services: reprogram connect control unit.
No. 103-212022-03-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Recall repair information for recall campaign WMF8 - supply remote control.
No. 115-212022-02-04. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Technical information WME9 - re-programing PDK control unit.
No. 135-212022-02-04. Service bulletin. ELECTRICAL SYSTEM; SEATS. Technical information for WMJ6 - re-programing and/or coding seat control unit.
No. 145-212022-02-04. Service bulletin. ELECTRICAL SYSTEM; WHEELS; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Technical information on WMK8 - replacing wheel electronics for the tire pressure monitoring system (TPMS)
No. 2125.12022-02-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the 911 ignition lock warning along with fault code B143C29.
No. 151-212022-01-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Technical information for a warning message - "engine control system fault"/ fault memory entry for high fuel pressure in DME control unit.
No. 21362022-01-04. Service bulletin. ELECTRICAL SYSTEM. Special tools information for a map service update for PCM4 and PCM5.
No. 2109.12022-01-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Instructions on advanced technical information for critical 12V Li-ion battery recycling for the 911, Cayenne, Taycan, and 918 Spyder.
No. 180-212021-12-07. Service bulletin. ELECTRICAL SYSTEM. Technical information on WMM7 - replacing VTS control unit.
No. 150-212021-11-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Technical information on the engine control system fault - engine-Compartment blower in the DME control unit.
No. 2127-22021-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Instructions on advanced technical information for poor ground leads - starting issue.
No. 2125-12021-11-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:MECHANICAL. Instructions on the advanced technical information for the ignition lock warning.
No. 31-202021-11-04. Service bulletin. ELECTRICAL SYSTEM. Information for handling 12v lithium-ion batteries.
No. 2108.12021-11-04. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE. Instructions on advanced technical information for lane change assist warning.
No. 119-21-52021-10-06. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Porsche Workshop campaign repair instructions for Workshop Campaign WMG0 – Retrofitting Tire Pressure Monitoring (TPM) Control Unit.
No. 119-21-42021-10-06. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Porsche Workshop campaign repair instructions for Workshop Campaign WMG0 – Retrofitting Tire Pressure Monitoring (TPM) Control Unit.
No. 2113.12021-10-06. Service bulletin. ELECTRICAL SYSTEM:INTERIOR LAMPS/BULBS; UNKNOWN OR OTHER. Special Tools information for Deutronic Signal Lamps.
No. 21142021-09-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Special tools information for a 12V Power Supply for PT3G Oscilloscope.
No. 1836.12021-09-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. New Special tools information for a Schumacher 100 Amp Reprogrammer / Power Supply with Battery Support.
No. 21132021-09-02. Service bulletin. ELECTRICAL SYSTEM. Special tools information for new Deutronic Signal Lamps.
WMF82021-08-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Porsche intranet posting with preliminary information on Workshop campaign WMF8 - Supply Remote Control.
No. 21142021-07-06. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information on Updating PVTS CU Software in the event that the Engine will not start.
No. 2100.12021-07-06. Service bulletin. ELECTRICAL SYSTEM. Information on offline MAP service updates for the PCM4 and PCM5.
PIWIS2101x2021-06-02. Service bulletin. ELECTRICAL SYSTEM. Information on Porsche PIWIS Tester III Online Update 40.200.000, .010, .015 & .016.

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