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Service bulletin 122-T8S4T-08

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 id10120612
Published by NHTSA2017-10-25
Manufacturer's number122-T8S4T-08
Manufacturer's date2017-07-14
NHTSA componentELECTRICAL SYSTEM:WIRING

NHTSA's summary

Cause Incorrect wiring for rear lid release switch. Date of introduction Modified wiring is used during production from November 7, 2016. Remedial action In the event of a customer complaint, rework rear lid release switch wiring using a cable adapter.

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

Electrical system, Wiring and fuses

Vehicles listed
PORSCHE PANAMERA2017

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
No. 20242020-10-01. Service bulletin. Information on new special tool - VAS 1978/35 Connector Release Tools.
122-P5G7U-072018-08-06. Service bulletin. Oil in the wiring harness. If oil is found in the engine wiring harness during a repair, the wiring harness and all the affected components (including the oil pump control valve) must be replaced.
122-Y8S5J-082017-10-25. Service bulletin. Subject: Wire harness for PASMvalve unit Information: The wire harness for the PASM valve unit is not routed correctly in the area around the heat protection panels for the valve unit on the affected vehicles. Due to relative movements while driving and if significant amounts of dirt get in, this can cause chafing on the wire harness and as a result, faults can be entered in the fault memory and the warning "Chassis system fault" may be displayed in the instrument cluster. As a result, the vehicle level can no longer be set.
122-C4Y4T-102017-10-15. Service bulletin. Cause: The wire harness for the TPM control unit can interfere with communication between the TPM control unit and the TPM sensors. The wire harness for the TPM control unit is not routed correctly in the rear axle area. Remedial Action: The routing of the wire harness is changed using an extension of the existing harness wire.