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Service bulletin PIL 646

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 id10118788
Published by NHTSA2017-10-13
Manufacturer's numberPIL 646
Manufacturer's date2017-09-21
NHTSA componentTIRES

NHTSA's summary

Meritor is pleased to announce the the availability of Meritor Tire Inflation System (MTIS) for Mtec6 axles.

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

Vehicles listed
MERITOR AXLE

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