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Service bulletins for the 2020 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
No. D5202020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Parts withdrawal information for a 992 switch module.
No. 20242020-10-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLES. Information on new special tool - VAS 1978/35 Connector Release Tools.
No. 103-202020-10-01. Service bulletin. ELECTRICAL SYSTEM. Information on selector lever faults and current measures in the event that the button lighting does not function.
PIWIS2001ac2020-10-01. Service bulletin. ELECTRICAL SYSTEM. Information on PIWIS Tester III Online Update 39.700.000, .010 & .012
No. 2005.12020-08-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Revised instructions for clearing an engine warning fault caused by a brake light switch fault.
No. D4a2020-07-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Document showing the evolution of Porsche Vehicles since 1948.
PIWIS2001v2020-07-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Information on new PIWIS tester update 39.500.020 and .025.
No. 31-202020-07-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Instructions on how to handle 12V vehicle batteries.
No. 41-202020-07-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. Instructions on how to perform a PVTS Software update in the event that a car will not start.
No. 20052020-06-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Information on new VCI cables available for purchase by dealers.
No. 31-122020-06-01. Service bulletin. ELECTRICAL SYSTEM. Instructions for what to do in the event that the customer loses the driver's key while transporting the vehicle.
No. 41-202020-06-01. Service bulletin. ELECTRICAL SYSTEM. Instructions for how to perform a software update on the Control unit for the auxiliary alarm system in the event that the vehicle will not start.
122-T9Q9Q-042020-04-02. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting for Workshop campaign WKJ9.
122-F8X9E-042020-04-02. Service bulletin. ELECTRICAL SYSTEM. Workshop campaign instructions for campaign WKJ9, which seeks to reprogram the control unit for assistance systems on affected vehicles.
122-P4P6Z-042020-04-02. Service bulletin. ELECTRICAL SYSTEM. Instructions for reprogramming the PCM 5.0 if daylight savings time is not in effect.
122-C6T6W-042020-04-02. Service bulletin. ELECTRICAL SYSTEM. Instructions for recoding the central computer in the event that there are software errors in the front display and operator control unit.
122-M6P9C-032020-03-05. Service bulletin. ELECTRICAL SYSTEM. Porsche intranet posting for Workshop campaign WKL7.
122-H6D8D-032020-03-05. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining new PIWIS tester update 39.100.030 & .035
122-J7Q9X-032020-03-05. Service bulletin. ELECTRICAL SYSTEM. Repair instructions for Workshop campaign WKL7, which seeks to update the software on several control units on the new 992 generation 911.
122-V4J2F-032020-03-05. Service bulletin. ELECTRICAL SYSTEM. Bulletin outlining PIWIS tester update 39.200.000, .010, .015, .016, & .017
122-P7A8T-022020-02-04. Service bulletin. ELECTRICAL SYSTEM. Technical information outlining the customer complaint that the locking "beep" not working as specified. The issue can be corrected by reprogramming the vehicle's rear end electronics.
122-Y3Y7Y-022020-02-04. Service bulletin. ELECTRICAL SYSTEM. Parts withdrawal bulletin for various outdated control units on a variety of vehicles.
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-M6J2U-012020-01-03. Service bulletin. ELECTRICAL SYSTEM. Information about PIWIS Tester update 39.000.020

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