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Service bulletins for the 2017 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.

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

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
No. 20202020-10-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Information on new special tool for offline updates of the PCM Versions 4 and 5.
No. 43-102020-08-05. Service bulletin. POWER TRAIN. Various repair symptoms and their associated repairs for all PDK transmissions.
No. 70-202020-07-01. Service bulletin. POWER TRAIN. Information on new transmission oil for the 991 generation 911. Mixing is now not required.
122-T4N8F-052020-05-05. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Porsche intranet posting for Workshop Campaign WLA4.
122-U6R4G-052020-05-05. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Workshop Campaign instructions for WS Campaign WLA4 - Retrofitting Heat Shield.
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-T8T7L-122017-12-14. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Subject: Bleeder screw for front axle lift system Situation: There is a possibility that the bleeder screw for the front axle lift system was not tightened to the prescribed tightening torque on the affected vehicles. This can impair the function of the lift system. The error message "Error lift system" can then be displayed in the instrument cluster when the lift function is activated.
122-C5R5V-102017-11-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. During diagnostic monitoring of the hydraulic control valves of the PDK transmission, a fault memory entry is stored in the PDK control unit if an implausible shift rod movement is detected. The PDK control unit therefore initiates a flushing measure in order to flush particles of dirt determined as the cause of the fault out of the hydraulic control valves. As soon as the fault memory entry was activated in two consecutive driving cycles, there was a possibility with the previous diagnostic configuration that the message "Engine control fault ? visit workshop ? Driving permitted" would be displayed in the instrument cluster although the flushing measure had already been carried out successfully and a fault was no longer present. To prevent this from happening, the diagnostic function for monitoring the hydraulic control valves will be adapted accordingly.
122-S5V2E-092016-10-03. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. "THIS CAMPAIGN INCLUDES STEPS WHERE CONTROL UNIT(S) IN THE VEHICLE WILL BE PROGRAMMED WITH THE PIWIS TESTER. THE VEHICLE VOLTAGE MUST BE MAINTAINED BETWEEN 13.5 VOLTS AND 14.5 VOLTS DURING THIS PROGRAMMING. FAILURE TO MAINTAIN THIS VOLTAGE COULD RESULT IN DAMAGED CONTROL UNIT(S). DAMAGE CAUSED BY INADEQUATE VOLTAGE DURING PROGRAMMING IS NOT A WARRANTABLE DEFECT. THE TECHNICIAN MUST VERIFY THE ACTUAL VEHICLE VOLTAGE IN THE PIWIS TESTER BEFORE STARTING THE CAMPAIGN AND ALSO DOCUMENT THE ACTUAL VOLTAGE ON THE REPAIR ORDER. PLEASE REFER TO EQUIPMENT INFORMATION EQ1401 FOR A LIST OF SUITABLE BATTERY CHARGERS/POWER SUPPLIES WHICH SHOULD BE USED TO MAINTAIN VEHICLE VOLTAGE."
122-C4N9A-092016-10-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. "THE UNWARRANTED ERROR MESSAGE ""GEARBOX FAULT"" CAN APPEAR SPORADICALLY IN THE INSTRUMENT CLUSTER ON THE AFFECTED VEHICLES BECAUSE THE DIAGNOSTIC FUNCTION FOR THE HYDRAULIC VALVES IN THE PDK TRANSMISSION IS TOO SENSITIVE. IF THIS HAPPENS, THE PDK TRANSMISSION SWITCHES TO THE REDUCED DRIVING PROGRAMMED AND THE CHECK ENGINE LIGHT IN THE INSTRUMENT CLUSTER WILL BE ACTIVATED. RE-PROGRAM THE PDK CONTROL UNIT USING THE PIWIS TESTER WITH TEST SOFTWARE VERSION 16.400.010 (OR HIGHER) INSTALLED."

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