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Service bulletin 122-T8T3K-10

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10119318
Published by NHTSA2017-10-15
Manufacturer's number122-T8T3K-10
Manufacturer's date2017-09-12
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

Information: In certain driving situations, the transmission only switches from 1st to 2nd gear at a significantly higher engine speed when selector-lever position "D" is engaged.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline, Automatic transmission

Vehicles listed
PORSCHE MACAN2014
PORSCHE MACAN2015, 2016, 2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
WMD12021-06-03. Service bulletin. Porsche intranet posting with preliminary information for Porsche workshop campaign WMD1 Workshop Campaign -PCM Software Update.
No. 20202020-10-01. Service bulletin. Information on new special tool for offline updates of the PCM Versions 4 and 5.
No. 118-202020-09-02. Service bulletin. Instructions for how to assist if the selector lever is in Park position but not detected, and the key cannot be removed.
122-F5P9T-052017-09-14. Service bulletin. Concerns: DME control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. New data records for the DME control unit are available for the affected vehicles.
122-X7N8S-052017-09-14. Service bulletin. Concerns: PDK control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. A new data record for the PDK control unit is available for the affected vehicles. * PDKcontrolunit: With the previous data record for the PDK control unit, slowly braking the vehicle when the PDK transmission shifts down from 2nd to 1st gear just before the vehicle comes to a standstill or even when switching from coasting mode to normal driving can result in a hard and clearly perceptible gear change.