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Service bulletin 109/21 4407

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11034627
Published by NHTSA2026-07-07
Manufacturer's number109/21 4407
Manufacturer's date2026-06-02
NHTSA componentWHEELS
Manufacturer's systemWheel: Center lock

NHTSA's summary

Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure (SY 109/21)

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Wheels

Vehicles listed
PORSCHE 911 GT32021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT3 RS2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT3 TOURING2022, 2023 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20246462024-10-28. Wheels
24V8090002024-10-28. WHEELS:LUGS/NUTS/BOLTS/STUDS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SPTL26092026-10-02. Service bulletin. Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
No. 64-26-12026-10-02. Service bulletin. Technical Information for Yellow Warning Message "Rear Axle Steering Has Failed" in Instrument Cluster: Replace Servo Motors for Rear Axle Steering
No. 35-262026-10-02. Service bulletin. Manufacturer's Certificate for Approval: Wheels and Tires
No. 34-262026-10-02. Service bulletin. Manufacturer's Certificate for Approval: Wheels and Tires. Note that this bulletin covers MY25+ 911 GT3, GT3 Touring, and GT3 S/C
SPTL26082026-09-04. Service bulletin. Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
24-262026-09-04. Service bulletin. Manufacturer's Certificate for approved wheels and tires. Also includes model year 2024 911 S/T and GT3 Touring.
23-262026-09-04. Service bulletin. Manufacturer's Certificate for approved wheels and tires
109/21 44072026-07-08. Service bulletin. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure (SY 109/21)
53/26 40052026-07-08. Service bulletin. Additional Test Instructions for Rim Damage on the Front Axle (53/26)
40/26 44072026-07-07. Service bulletin. Wheel Bolt Replacement Requirement - Change from Wheel Bolts with Aluminum Washers to Wheel Bolts with Steel Washers (40/26)