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Service bulletins for the 2023 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.

597 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
TSTR26332026-07-08. Service bulletin. UNKNOWN OR OTHER. Porsche Tester Software Update Information Software Version: 44.200.022
TSTR26332026-07-08. Service bulletin. UNKNOWN OR OTHER. Porsche Tester Software Update Information Software Version: 44.200.022
TSTR26322026-07-08. Service bulletin. UNKNOWN OR OTHER. Porsche Tester Software Update Information Software Version: 44.200.015
TSTR26312026-07-08. Service bulletin. UNKNOWN OR OTHER. Porsche Tester Software Update Information Software Version: 44.200.010
TSTR26312026-07-08. Service bulletin. UNKNOWN OR OTHER. Porsche Tester Software Update Information Software Version: 44.200.010
TSTR26302026-07-08. Service bulletin. UNKNOWN OR OTHER. Porsche Tester Software Update Information Software Version: 44.200.001
SPTL2603a2026-07-08. Other. STRUCTURE:BODY. Porsche Approved Collision Center – Acquiring Special Tools and Equipment
109/21 44072026-07-08. Service bulletin. WHEELS. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure (SY 109/21)
03/26 91022026-07-07. Service bulletin. BACK OVER PREVENTION: WARNINGS; ELECTRICAL SYSTEM. Complaint Regarding the Camera View (Real Top View) in the PCM Central Display (03/26)
40/26 44072026-07-07. Service bulletin. WHEELS. Wheel Bolt Replacement Requirement - Change from Wheel Bolts with Aluminum Washers to Wheel Bolts with Steel Washers (40/26)
20/262026-07-07. Other. ENGINE. Overview of Approved Porsche C20 Engine Oils (20/26)
19/26 17012026-07-07. Other. ENGINE. Overview of Approved Porsche C30 Engine Oils (19/26)
21/26 17012026-07-07. Other. ENGINE. Overview of Approved Porsche C40 Engine Oils (21/26)
15/26 17012026-07-07. Other. ENGINE. Overview of Approved Porsche A40 Engine Oils (15/26)
16/26 17012026-07-07. Other. ENGINE. Overview of Approved Porsche C30 Engine Oils (16/26)
16/26 17012026-07-07. Other. ENGINE. Overview of Approved Porsche C30 Engine Oils (16/26)
17/26 17012026-07-07. Other. ENGINE. Overview of Approved Porsche C20 Engine Oils (17/26)
18/26 17012026-07-07. Other. ENGINE. Overview of Approved Porsche C40 Engine Oils (18/26)
109/21 44072026-07-07. Service bulletin. WHEELS. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure (SY 109/21)
109/21 44072026-07-07. Service bulletin. WHEELS. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure (SY 109/21)
87/20 48122026-07-07. Service bulletin. STEERING. Noise Symptom - Creaking Noise can be Heard When Touching the Steering Wheel Cover: Reworking Front Steering Wheel Cover (SY 87/20)
88/20 37342026-07-07. Service bulletin. POWER TRAIN. Complaint - Oil Leakages on Double-Clutch Transmission (Porsche Doppelkupplung (PDK)): Observe Specified Procedure (88/20)
109/21 44072026-07-07. Service bulletin. WHEELS. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure (SY 109/21)
No. TLLI26022026-06-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Tech live look information bulletin for How to use Frontline.io on the HoloLens 2
No. TLLI26012026-06-05. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Tech live look information bulletin for how to use fronline.io on mobile devices and tablets.

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