WenmarOpen by Wenmar Pro

Service bulletin 122-X2S4B-05

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 id10105755
Published by NHTSA2017-06-09
Manufacturer's number122-X2S4B-05
Manufacturer's date2017-04-18
NHTSA componentTIRES

NHTSA's summary

"TIRES ARE IMBALANCED AND VIBRATIONS OCCUR AS A RESULT. CAUSE: IN ORDER TO REDUCE THE NOISE LEVEL FROM THE TIRES, TIRE MANUFACTURERS ARE APPLYING ACOUSTIC FOAM TO THE INSIDE OF THE TIRE."

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Tires

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
ATIALL416042021-06-28. Service bulletin. 2003 to Present All with tire pressure monitoring system.
122-R4K9H-012021-03-06. Service bulletin. Resubmitting at request of Mr. Bernard Hardgrave. List of approved wheels and tires for the Panamera.
No. 48-202021-01-05. Service bulletin. List of approved wheels and tires sets for the 971 Panamera.
122-H4T8S-032020-03-05. Service bulletin. Porsche intranet posting for Workshop campaign WKK2. WKK2 Workshop campaign - Re-programming Tire Pressure Monitoring (TPM) control unit
122-H8K6P-092019-09-23. Service bulletin. List of approved wheel and tire combinations for the MY17 Panamera and newer.
122-P4L5H-092018-11-19. Service bulletin. Equipment: Tire Pressure Monitoring (TPM) 433 MHz (I-no. 7K3) Subject: Control unit for Tire Pressure Monitoring (TPM)
122-E8A2X-122017-12-14. Service bulletin. General Information: This bulletin contains information regarding: * technically permissible wheel/tire combinations, * measures that may be required when changing the wheel/tire combination installed at the factory, * approved original Porsche alloy wheels and * approved summer, all-season and winter tires and their tire pressures.