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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

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
No. 21-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C30 engine oils.
No. 20-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C20 engine oils.
No. D6472023-09-09. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PUMP. Parts information on parts withdrawal for the oil pump
No. 10-232023-09-08. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on manufacturers certificate for approved Porsche C30 engine oils.
No. 14-232023-08-04. Service bulletin. ENGINE AND ENGINE COOLING. Manufacturers certificate for allocation of approved engine oils
No. 21-192023-08-04. Service bulletin. ENGINE AND ENGINE COOLING. Installation and conversion instructions for the sport exhaust system
No. 23122023-08-03. Service bulletin. ENGINE AND ENGINE COOLING. Special tools information for a GT3 suspension alignment aids and GT4 engine removal frame.
No. 13-23-22023-07-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Technical information for WPA6 - replacing engine data adhesive label.
No. 23112023-06-06. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the 992 GT3 - DME fault/fuel low pressure
No. 02-232023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for a warning message - "engine control system malfunction" in conjunction with error memory entry P04F000 in DME control unit.
No. 07-232023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C30 oils for all Porsche models that use C30 oil.
No. 06-232023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C20 oils for all Porsche models that use C20 oil.
No. 22362023-01-10. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on advanced technical information for a 911 - injector fault.
No. 231-222022-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for drops of oil or traces of oil on rear axle shock absorber
No. 150-222022-10-05. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Technical information on the the MIL activating together with the fault memory entry - P045600/P044200
No. 148-212022-09-07. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for AMC0 - reprograming DME and transmission control unit
No. 32-222022-09-07. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on the manufacturers certificate for approved C20 engine oils.
No. 34-222022-09-07. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on the manufacturers certificate for approved Porsche C30 engine oils.
No. 147-182022-08-05. Service bulletin. ENGINE AND ENGINE COOLING. Technical information for a complaint - rattling noise from around the crank drive.
No. 67-222022-06-03. Service bulletin. ENGINE AND ENGINE COOLING. Symptom based workshop manual - PDK transmission: noises from the rear end area
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. 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. 02-222022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C30 engine oils for all Porsche models using C30 oils.

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