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Service bulletin PIP6131

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 id11036220
Published by NHTSA2026-08-17
Manufacturer's numberPIP6131
Manufacturer's date2026-08-14
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary Information (PI) relays to dealer technicians to replace the engine and turbocharger if there is a lack of lubrication to the rocker arms or rocker arm components.

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.

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.