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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. 2229.92023-09-09. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Information on advanced technical information for the Cayenne and 911 - conbox current draw discharges 12v battery
No. 2117.12023-09-09. Service bulletin. ELECTRICAL SYSTEM; COMMUNICATION:MANUFACTURER TELEMATICS. Information on advanced technical information for the connect registration and pairing PDI tips.
No. 2308.42023-09-09. Service bulletin. UNKNOWN OR OTHER; VISIBILITY. Information on advanced technical information for the lightweight glass panes - cracked.
No. 40-212023-09-09. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Technical information for a warning message that states "lift system fault' on instrument cluster.
No. 31-202023-09-08. Service bulletin. ELECTRICAL SYSTEM. Technical information for diagnosis and handling of the 12 volt lithium-ion battery
No. 11-232023-09-08. Service bulletin. WHEELS. Instructions on manufacturers certificate for approved wheels and tires.
No. 10-232023-09-08. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on manufacturers certificate for approved Porsche C30 engine oils.
WPF12023-08-07. Service bulletin. EQUIPMENT. Porsche intranet posting with information on WPF1 - Workshop campaign - Supplying Driver’s Manual Supplement
WPG32023-08-07. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting with information on WPG3 workshop campaign - Re-programming instrument cluster
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
PIWIS2301as2023-08-03. Service bulletin. EQUIPMENT. Information for PIWIS tester update 42.100.000, .010 & .011
No. 2224.22023-08-03. Service bulletin. ELECTRICAL SYSTEM. Instructions for advanced technical information for the PCM and Porsche innodrive software temporarily unavailable
No. 74-23-22023-08-03. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. Technical information for WPG3 - reprogramming instrument cluster
PIWIS2301ar2023-08-03. Service bulletin. BACK OVER PREVENTION:SOFTWARE. Information for PIWIS tester updates 42.000.050 & .051
No. 2116.22023-08-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the red warning instrument cluster - occupant seat belt not fastened.
PIWIS2301aq2023-08-03. Service bulletin. BACK OVER PREVENTION:SOFTWARE. Information for PIWIS tester update 42.000.048
No. 2229.82023-08-03. Service bulletin. ELECTRICAL SYSTEM. Instructions on advanced technical information for the conbox current draw discharges 12v battery - Cayenne and 911.
No. 85-232023-08-03. Service bulletin. ELECTRICAL SYSTEM. Information for a replacement requirement for the 40 Ah lightweight starter battery
No. 68-232023-08-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Symptom-based workshop manual for a noise symptom - hands free quality impaired in PCM. Making telephone calls with broadband communication.
PIWIS2301ap2023-08-03. Service bulletin. EQUIPMENT. Information for PIWIS tester update 42.000.040
No. 23122023-08-03. Service bulletin. ENGINE AND ENGINE COOLING. Special tools information for a GT3 suspension alignment aids and GT4 engine removal frame.
PIWIS2301ao2023-08-03. Service bulletin. EQUIPMENT. Information for PIWIS tester update 42.000.035
No. 2308.32023-07-06. Service bulletin. EQUIPMENT; VISIBILITY. Instructions on advanced technical information for the lightweight glass panes - cracked
No. 53-232023-07-06. Service bulletin. EQUIPMENT; STRUCTURE. Technical information for water ingress in the interior - check seam seal on front wall at front left and rework if necessary.

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