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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

Bulletins, newest first
No. D5992022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. Parts information for parts withdrawal involving the valve spring. Part numbers affected are PAB109623 and 958109623.
No. 180-21-12022-04-05. Service bulletin. EQUIPMENT:MECHANICAL; ELECTRICAL SYSTEM. Technical information for WMM7 - replacing VTS control unit.
No. 06-212022-04-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; VISIBILITY; ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR. Installation and conversion instructions for the dashcam on the 911.
No. 11-21-12022-03-04. Service bulletin. EQUIPMENT; WHEELS. Technical information for recall campaign WMA3. Replacing wheel bearing housing.
No. 11-21-22022-03-04. Service bulletin. EQUIPMENT; WHEELS. Technical information for recall campaign WMA3. Replacing wheel bearing housing.
No. 07-222022-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on the manufacturers certificate for allocation of approved engine oils up until MY2021. (starting back at MY1984). An overview of the approved engine oils.
No. 06-222022-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on the manufacturers certificate for allocation of approved engine oils up until MY2020. (starting back at MY1984). An overview of the approved engine oils.
No. 2005.22022-03-04. Service bulletin. ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH; ELECTRICAL SYSTEM. Instructions on advanced technical information for the 992 - engine warning fault caused by P070300 (00110D) – “Brake light switch-electrical fault”
No. 205-21-12022-03-03. Service bulletin. EQUIPMENT; LANE DEPARTURE; ELECTRICAL SYSTEM:SOFTWARE. Technical information for a message stating "lane change assist not available - service necessary" in the instrument cluster. re-programing lane change assist control units.
No. 180-212022-03-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Information for recall campaign WMM7 replacing VTS control unit.
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. 02-222022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C30 engine oils for all Porsche models using C30 oils.
No. 01-222022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C20 engine oils for all Porsche models that use C20 oil.
No. 103-212022-03-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Recall repair information for recall campaign WMF8 - supply remote control.
No. 183-212022-02-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Technical information on the rattling noises from around the rear axle. Check engine mount.
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. 109-212022-01-05. Service bulletin. EQUIPMENT; WHEELS; SUSPENSION. Symptom-based workshop manual: noise symptom, clicking sound from around the front axle. Observe specified procedure.
No. 174-21-12022-01-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Technical information on why engine will not start - checking engine ground strap.
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. 101-21-12021-12-07. Service bulletin. WHEELS. Instructions on the manufacturer's certificate for approved wheels and tires.

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