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Service bulletin 122-T4Q4V-04

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 id10134868
Published by NHTSA2018-04-23
Manufacturer's number122-T4Q4V-04
Manufacturer's date2018-03-01
NHTSA componentWHEELS

NHTSA's summary

Subject: Rear wheels Information: The rear axle of the affected vehicles was fitted with wheels on which a surface fault can occur on the inside of the wheel due to an error during the production process. If this happens, the surface fault can be regarded as a visual defect.

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

Wheels

Vehicles listed
PORSCHE 718 BOXSTER2017, 2018

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

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