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Service bulletin PIT4013B

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 id10151822
Published by NHTSA2018-12-17
Manufacturer's numberPIT4013B
Manufacturer's date2018-11-07
NHTSA componentEQUIPMENT

NHTSA's summary

This PI clarifies a service procedure for dealership technicians who may be unfamiliar with medium duty vehicle service procedures.

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

Equipment and accessories

Vehicles listed
CHEVROLET C45002003 to 2006
CHEVROLET C55002003 to 2006
GMC TOPKICK2003 to 2005

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