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Service bulletin No. 99-25

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 id11027273
Published by NHTSA2026-01-07
Manufacturer's numberNo. 99-25
Manufacturer's date2025-12-17
NHTSA componentSTEERING

NHTSA's summary

Technical information on Temporary Vibrations on the Steering Wheel, Particularly During Sporty Driving

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

Steering

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.

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
SPTL26082026-09-04. Service bulletin. Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
No. 64-262026-09-04. Service bulletin. Technical Information for Yellow Warning Message "Rear Axle Steering Has Failed" in Instrument Cluster: Replace Servo Motors for Rear Axle Steering
87/20 48122026-07-07. Service bulletin. Noise Symptom - Creaking Noise can be Heard When Touching the Steering Wheel Cover: Reworking Front Steering Wheel Cover (SY 87/20)
No. D7332025-09-08. Service bulletin. Parts information for parts withdrawal involving (PAD423051B) the Steering Gear with Track Rods. The vehicles affected are cars that use the part mentioned.
WSF72025-08-07. Service campaign. Porsche intranet posting with information on WSF7 Workshop campaign - Re-programming power steering control unit (EPS)
WSF72025-08-05. Service campaign. Technical information for the reprogram power steering control unit on the 2025 911
No. 230-242025-05-06. Service bulletin. Technical information for a Yellow Warning Message "Power Steering Faulty - Adapted Driving Permitted" in Conjunction with Fault Memory Entry "B200000" in the Power Steering Control Unit. 911 GTS and Targa GTS included.
No. 25032025-03-06. Service bulletin. Advanced Technical Information - Release 3+ Vehicle Assistance Systems - White Warning in the Instrument Cluster: Assistance Systems currently restricted