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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
WSB42025-04-07. Service campaign. ELECTRICAL SYSTEM. Technical Information - WSB4-Re-Programming External Communication Control Unit (Workshop Campaign)
WSA42025-04-07. Service campaign. ELECTRICAL SYSTEM. Technical Information - WSA4–Re-Programming Gateway Control Unit (Battery Sensor)(Workshop Campaign)
D7152025-04-07. Service bulletin. UNKNOWN OR OTHER. Parts Information - Parts Withdrawal - Hydro-mounting (992199384F)
D7142025-04-07. Service bulletin. ENGINE. Parts Information - Parts Withdrawal - Replacement Engine (9A2100975JX)
No. 11-252025-04-07. Service bulletin. LANE DEPARTURE: WARNING; ELECTRICAL SYSTEM; LANE DEPARTURE: ASSIST. Technical Information - Various Error Messages regarding Driver Assistance Systems in the Instrument Cluster / Passive Fault Memory Entry "C12D5FA" in the Driver Assistance System Control Unit (ZFAS) (11/25)
No. 2407.32025-03-06. Service bulletin. VISIBILITY/WIPER. Advanced Technical Information - Surround View Camera Intermittent Operation
No. 2308.72025-03-06. Service bulletin. VISIBILITY/WIPER. Advanced Technical Information - Lightweight Glass Panes Cracked – Identification and Possible Causes
No. 25032025-03-06. Service bulletin. ELECTRICAL SYSTEM; STEERING. Advanced Technical Information - Release 3+ Vehicle Assistance Systems - White Warning in the Instrument Cluster: Assistance Systems currently restricted
No. 213-222025-03-06. Service campaign. VISIBILITY/WIPER. Technical Information - WNQ7 - Testing Windshield Frame and Reworking if Necessary (Workshop Campaign)
D7102025-03-06. Service bulletin. WHEELS. Parts Information - Parts Withdrawal - Central Locking
No. 03-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C40 Engine Oils (03/25)
No. 02-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C30 Engine Oils (02/25)
No. 01-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C20 Engine Oils (01/25)
No 2435.12025-03-05. Service bulletin. VISIBILITY/WIPER. Advanced Technical Information - 992 Lightweight Rear Quarter Glass Panes Are Cracked
D7082025-03-05. Service bulletin. UNKNOWN OR OTHER. Parts Information - Parts Withdrawal - Hexagon Flange Screw (Combi)
D82025-03-05. Service bulletin. UNKNOWN OR OTHER. Product Knowledge - Chassis/VIN Numbering Systems
D92025-03-05. Service bulletin. WHEELS. Parts Information - Thatcham Wheel Lock Information
No 223-242025-03-05. Service bulletin. ENGINE. Symptom-based workshop manual - Assessment of Oxidized Cylinder Liners (SY 223/24)
No. 24352025-01-08. Service bulletin. VISIBILITY/WIPER. Instructions on advanced technical information for the 992. Lightweight rear quarter glass panes are cracked
No. D7062025-01-07. Service bulletin. ELECTRICAL SYSTEM. Parts information for parts withdrawal involving the socket and throttle control element. The vehicles affected are cars that use part numbers 9J1821941G, 9J1821942G, 9J1959774F, PAD959774
No. 24172025-01-07. Service bulletin. UNKNOWN OR OTHER. Special tools and equipment information for AVL HV Tool calibration and certification service
No. 2308.62025-01-07. Service bulletin. VISIBILITY/WIPER. Instructions on advanced technical information for lightweight glass panes cracked - identification and possible causes. Affected vehicles are 992110, 992120, 991130, 992140, 992150, 992410, 992420, 992430, 992440, 992450, 992460, 992810, 992820, 992850
No. 204-242025-01-07. Service bulletin. WHEELS. Technical information for ARC4 - wheel mounting with central lock
No. D705.12025-01-07. Service bulletin. POWER TRAIN; SUSPENSION. Parts information for parts withdrawal for information on the cardan shaft and shock absorber. The vehicles affected are cars that use part numbers 958521101, 958521101A, 9J1413031G
No. D7052025-01-07. Service bulletin. SUSPENSION; POWER TRAIN. Parts information for parts withdrawal for information on the cardan shaft and shock absorber. The vehicles affected are cars that use part numbers 958521101, 958521101A, 9J1413031G

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