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Service bulletin 4473

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 id10022771
Published by NHTSA2007-09-26
Manufacturer's number4473
NHTSA componentSERVICE BRAKES, AIR

NHTSA's summary

BENDIX AIR BRAKE DIAGNOSTIC INFORMATION. *KB

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

Brakes

Vehicles listed
CHEVROLET KODIAK2007
GMC TOPKICK2007

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