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Service bulletins for the 2018 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.

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

By type

By component

By trouble code

Bulletins, newest first
122-T6A9F-022020-02-04. Service bulletin. SEATS; WHEELS; ENGINE. Parts withdrawal for various parts that were used in Recall and workshop campaigns.
122-Y3Y7Y-022020-02-04. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal bulletin for various outdated control units on a variety of vehicles.
122-H6M8Z-012020-01-04. Service bulletin. EQUIPMENT. Porsche Intranet posting outlining the Warranty Credit stop that takes place at the end of every calendar year.
122-H4F7Z-012020-01-03. Service bulletin. EQUIPMENT. Updated worksheet for Chassis and VIN numbering system. Updated to include 2020 Models including the Taycan.
122-L7Q9T-012020-01-03. Service bulletin. EQUIPMENT. Updated bulletin with the full list of Porsche model type designations.
122-A9R3U-012020-01-03. Service bulletin. ELECTRICAL SYSTEM. Information about new PIWIS Tester update 39.050.010
122-S2J9B-012020-01-03. Service bulletin. ELECTRICAL SYSTEM. Information about new PIWIS Tester update 39.050.012
122-Y9Z9P-012020-01-03. Service bulletin. EQUIPMENT. Information about new PIWIS Tester updates 39.000.022 and 39.050.000
122-M6J2U-012020-01-03. Service bulletin. ELECTRICAL SYSTEM. Information about PIWIS Tester update 39.000.020
122-F5T6X-012020-01-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Instructions for manually setting the date and time on older model vehicles with GPS and PCM 2.1 or older.
122-W2X4X-012020-01-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. Bulletin outlining how to check the throttle housing cover in the event that the customer complains about sluggish performance above 7000 RPM.
122-A7G3D-122019-12-04. Service bulletin. EQUIPMENT. List of valid Advanced Technical Information bulletins (ATIs) as of 11/22/2019
122-D5X5D-122019-12-04. Service bulletin. POWER TRAIN. A revised bulletin outlining the complaint about longitudinal movement of the shift lever during load changes. This update is to include the 991 911 Speedster model.
122-H9W9L-112019-11-01. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER. Porsche intranet posting for WKA5 campaign, which seeks to check the fill level sensor for the water spray system and replace it if necessary.
122-T4D2V-112019-11-01. Service bulletin. EQUIPMENT. Parts withdrawal for sealing grease used for sports cars.
122-J2T5H-112019-11-01. Service bulletin. VEHICLE SPEED CONTROL. Parts withdrawal for the speed sensor on the 991 and 992 911 models.
122-H9P5Z-112019-11-01. Service bulletin. VISIBILITY; EQUIPMENT; ELECTRICAL SYSTEM. Parts withdrawal bulletin for the sun sensor on 718 and 991 911 models.
122-N4W7J-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Parts withdrawal bulletin for the coolant pump on 991 and 992 911 models.
122-P8G9U-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING. Information for Workshop campaign WKA5, which seeks to check the fill level sensor for the water spray system and replace it if necessary.
122-P8P9K-112019-11-01. Service bulletin. EQUIPMENT; STRUCTURE:BODY:DOOR. Information about retrofitting model designation on doors.
122-S3R9Q-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS Tester update 38.800.030
122-H6S4J-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS Tester update 38.800.020
122-D4N9X-112019-11-01. Service bulletin. ELECTRICAL SYSTEM. New PIWIS tester updates 38.800.000 &.010
122-G2B4B-112019-11-01. Service bulletin. ENGINE AND ENGINE COOLING. List of approved A40 engine oils for Porsche vehicles.
122-S5A6X-102019-10-31. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS. Porsche intranet posting for WH57 campaign, which seeks to replace the airbag control unit on affected vehicles.

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