Service bulletin 23W1 - Circular

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.

NHTSA's summary

Inlet Air Box Housing Snow Flap Replacement & Oxygen Sensor Inspection/Replacement - The snow flap in the inlet air box housing may remain partially to fully open. Should this occur, excess warm air could enter the air intake through the snow flap inlet. The oxygen sensor will be checked during this service and, if measured degradation tolerances are met, the sensor will be replaced.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

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

Equipment and accessories

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

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