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Service bulletin GCUS-3-323

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 id10126414
Published by NHTSA2017-12-22
Manufacturer's numberGCUS-3-323
Manufacturer's date2015-10-19
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

15272 - Emission Recall. Voluntary Emission Recall involving certain 2009-2011 model year Buick Lucerne vehicles equipped with a 3.9L engine (RPO LGD). The fuel control system may not adequately control carbon monoxide emissions under certain operating conditions. Dealers are to reprogram the engine control module (ECM) with fuel control calibration modifications.

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, Exhaust and emissions

Vehicles listed
BUICK LUCERNE2009, 2010, 2011

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

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