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Service bulletin 10126A

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 id10043853
Published by NHTSA2012-04-30
Manufacturer's number10126A
Manufacturer's date2012-03-01
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

GM: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT- CHECK ENGINE LIGHT ILLUMINATED DUE TO KNOCK SENSOR ON VEHICLES EQUIPPED WITH 8.1L V8 GAS ENGINE (L18). *JS

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

Engine

Vehicles listed
CHEVROLET KODIAK2008 to 2009
GMC TOPKICK2008 to 2009

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