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Service bulletin 122-P4L5H-09

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 id10148791
Published by NHTSA2018-11-19
Manufacturer's number122-P4L5H-09
Manufacturer's date2018-08-17
NHTSA componentTIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

NHTSA's summary

Equipment: Tire Pressure Monitoring (TPM) 433 MHz (I-no. 7K3) Subject: Control unit for Tire Pressure Monitoring (TPM)

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

Tires, Tire pressure monitoring

Vehicles listed
PORSCHE CAYENNE2017, 2018
PORSCHE PANAMERA2017, 2018

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-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-R3X2M-032020-03-05. Service bulletin. Repair manual for Workshop Campaign WKK2, which seeks to reprogram the TPMS control unit on affected Cayenne vehicles.