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Service campaign N262572131

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 campaign
NHTSA id11036440
Published by NHTSA2026-08-28
Manufacturer's numberN262572131
Manufacturer's date2026-08-28
Campaign id or software versionN262572131
NHTSA componentENGINE

NHTSA's summary

Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the oil galley in the cylinder head was not drilled properly. Dealers are to perform the inspection procedure contained within this bulletin.

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

Engine

Vehicles listed
CHEVROLET SILVERADO 25002026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002026 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002026 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002026 (the catalog's model; the bulletin names a series or trim of it)

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

Other bulletins for the same vehicles and component
N2625688302026-08-04. Service campaign. Certain vehicles listed above may have a condition in which the oil filter was not adequately tightened. Dealers are to check and tighten the oil filter if found to be loose.
15-NA-0102025-07-07. Service bulletin. This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.
25-NA-1002025-06-12. Service bulletin. This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty.