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Service bulletins for the 2001 Infiniti QX4

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.

88 on file from NHTSA, as of 2026-10-19.

About P0139 on the 2001 Infiniti QX4: what the code means, and the bulletins and recalls about the same components.

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By trouble code

Only bulletins with trouble code: P0139 are shown. Show all

Bulletins, newest first
ITB020022002-02-06. Service bulletin. UNKNOWN OR OTHER. SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP ON WITH REAR OXYGEN SENSOR DIAGNOSTIC TROUBLE CODE P0138, P0139, P0140, P0158, P0159, P0160 STORED. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.