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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. 02-21-22021-08-04. Service bulletin. STEERING. Instructions for how to fix an issue where the steering column will not adjust upwards or downwards.
No. 06-212021-08-02. Service bulletin. EQUIPMENT. Instructions for retrofitting a dashcam on the 992 generation 911.
PIWIS2101ac2021-07-06. Service bulletin. EQUIPMENT. Information on new PIWIS Tester update #40.300.020.
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.
PIWIS2101ab2021-07-06. Service bulletin. EQUIPMENT. Information on PIWIS tester update #40.300.000 & .010.
No. 35-212021-07-06. Service bulletin. WHEELS. List of approved wheels and tires for the 911.
No. 27-212021-07-06. Service bulletin. WHEELS. List of approved wheels and tires for the 992 generation 911.
PIWIS2101aa2021-07-06. Service bulletin. EQUIPMENT. Information on new PIWIS Tester update #40.250.040
No. 2100.12021-07-06. Service bulletin. ELECTRICAL SYSTEM. Information on offline MAP service updates for the PCM4 and PCM5.
No. D5712021-07-06. Service bulletin. EQUIPMENT. Parts withdrawal information for a selector mechanism.
No. D13.22021-07-06. Service bulletin. EQUIPMENT. Information on new PIWIS Tester program for independent repair facilities.
PIWIS2101z2021-07-06. Service bulletin. EQUIPMENT. Information on Porsche PIWIS Tester update #40.250.030 & .035.
ATIALL416052021-06-28. Service bulletin. EQUIPMENT; SERVICE BRAKES. Understanding and addressing brake squeal complaints.
ATIALL416042021-06-28. Service bulletin. EQUIPMENT; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. 2003 to Present All with tire pressure monitoring system.
ATIALL16012021-06-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 1997 to Present - Vehicle Analysis Log Types - In an effort to prode accurate information regarding the state of the vehicle at the time fof VAL creation, a "log type" drop down menu was added at the end of the VAL creation menu.
ATI016022021-06-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. The Approval and Support Management Program (ASM)
WME32021-06-03. Service bulletin. STEERING. Porsche intranet posting with preliminary information for Porsche Workshop campaign WME3 Workshop campaign with customer notification - retrofit electrical steering column adjustment.
PIWIS2101y2021-06-02. Service bulletin. EQUIPMENT. Information on Porsche PIWIS Tester III Online Update 40.200.020.
No. 21092021-06-02. Service bulletin. EQUIPMENT. Special tools information for pinout tool box tools.
No. 2110.12021-06-02. Service bulletin. ENGINE AND ENGINE COOLING. Instructions for correcting DMTL leakage faults on 4.0 engines.
No. 21102021-06-02. Service bulletin. ENGINE AND ENGINE COOLING. Advanced technical information for diagnosing DMTL leakage faults on 4.0 engines.
No. 42-21-12021-06-02. Service bulletin. LATCHES/LOCKS/LINKAGES. Instructions for correcting a creaking or squealing noise when the door handle moves in or out.
PIWIS2101x2021-06-02. Service bulletin. ELECTRICAL SYSTEM. Information on Porsche PIWIS Tester III Online Update 40.200.000, .010, .015 & .016.
No. 21092021-06-02. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for Critical 12V Li-ion Battery recycling.
No. 21082021-06-02. Service bulletin. ELECTRICAL SYSTEM. Advanced technical information for a lane change assist warning along with fault codes.

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