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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: Transmission and driveline are shown. Show all

Bulletins, newest first
No. 91-262026-10-02. Service bulletin. POWER TRAIN; ENGINE. Technical Information for Particles/Metal Chips/Residues in Engine Oil
No. 32-262026-10-02. Service bulletin. POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of approved Porsche C40 GT engine oils
No. 31-262026-10-02. Service bulletin. POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
No. 30-262026-10-02. Service bulletin. ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
No. 29-262026-10-02. Service bulletin. ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
No. 36-262026-10-02. Service bulletin. POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
18/262026-08-06. Warranty extension. POWER TRAIN. Warranty Information: Warranty Extension for Transmission Electronics Control Unit (18/26)
GR12D7872026-07-08. Other. POWER TRAIN. Parts Withdrawal - Drive Shaft
88/20 37342026-07-07. Service bulletin. POWER TRAIN. Complaint - Oil Leakages on Double-Clutch Transmission (Porsche Doppelkupplung (PDK)): Observe Specified Procedure (88/20)
No. D7802026-05-07. Service bulletin. ENGINE; POWER TRAIN. Parts information for parts withdrawal involving the transmission oil. Part number 00004321012 is affected - the vehicles that use this part number should be included.
No. D7762026-05-06. Service bulletin. ENGINE; POWER TRAIN. Parts information for parts withdrawal involving the transmission oil. The vehicles affected are ones that use the part number 00004330563
No. 28-262026-05-06. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Technical information for Transmission Warning Message “P Not Available”, Fault Memory Entries for Parking Lock Buttons in the Shift Console and Transmission Electronics (PDK) Control Units
No. D768.12026-04-07. Service bulletin. POWER TRAIN. Parts information for parts withdrawal involving the transmission fluid. Part number 00004321048. The cars affected are ones that use the part number listed.
No. 88-202026-04-07. Service bulletin. POWER TRAIN; ENGINE; FUEL/PROPULSION SYSTEM. Technical information for a Complaint - Oil Leakages on Double-Clutch Transmission (Porsche Doppelkupplung (PDK)): Observe Specified Procedure
No. D7682026-03-02. Service bulletin. POWER TRAIN. Parts information for parts withdrawal involving the (00004321048) Transmission fluid. The vehicles affected are ones that use the part number mentioned.
No. 27-232026-03-02. Service bulletin. POWER TRAIN. Symptom based workshop manual for Power Transmission Symptom – 7th Gear cannot be Engaged: Checking Locking Piece
No. 27-232026-03-02. Service bulletin. POWER TRAIN. Symptom based workshop manual for the Power Transmission Symptom - 7th Gear cannot be Engaged: Checking Locking Piece
No. D7612026-03-02. Service bulletin. POWER TRAIN. Parts information for parts withdrawal involving the 7 speed dual clutch gear box. Part numbers 0BG300047 and 0BG300047X are affected. Cars that are involved are ones that use the part numbers mentioned.
No. 88-25-12025-12-05. Service bulletin. POWER TRAIN. Symptom based workshop manual for Complaints Regarding Shifting Quality on Double-Clutch Transmissions in Conjunction with Message "Transmission Faulty"
No. 11-142025-12-05. Service bulletin. POWER TRAIN. Technical information for Checking Dual-Mass Flywheel (DMF) on Vehicles with PDK (11/14)
No. 88-202025-11-06. Service bulletin. POWER TRAIN. Technical information on a Complaint - Oil Leakages on Double Clutch Transmission (Porsche Doppelkupplung (PDK)): Observe Specified Procedure
No. 81-252025-10-08. Service bulletin. POWER TRAIN. Technical information for Control Unit for Jack (Front-Axle Lift) Without Communication – Warning Message “Chassis Faulty” on Instrument Cluster: Observe Specified Procedure
No. D735.12025-10-08. Service bulletin. POWER TRAIN. Parts information for parts withdrawal involving the rear axle steering. The part numbers are 992501031H, 992501032H, 992501033AB, 992501033AC. The vehicles affected are cars that use the part numbers listed
No. 88-202025-09-08. Service bulletin. POWER TRAIN. Technical information for Complaint - Oil Leakages on Double Clutch Transmission (Porsche Doppelkupplung (PDK)): Observe Specified Procedure
No. D7172025-05-06. Service bulletin. POWER TRAIN. Parts information for parts withdrawal involving the piston - 0PB107066J and 0PB107066K. The cars affected are ones that use the two part numbers mentioned.

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