Service bulletin ITB14041

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)
Type	Service bulletin
NHTSA id	10192425
Published by NHTSA	2021-05-10
Manufacturer's number	ITB14041
Manufacturer's date	2014-08-20
NHTSA component	ENGINE

NHTSA's summary

IF YOU CONFIRM: Oil is leaking from bank 1 and/or bank 2 at any point between the VVEL ladder assembly and the related cylinder head at sealing surface shown in Figure 1. NOTE: Figure 1 does not show the entire sealing surface that can be affected and is only an example of where a leak may be found. ACTION: Remove the affected VVEL ladder assembly and reseal it. IMPORTANT: See Cautions on page 2 before starting to reseal VVEL ladder assemblies. Please see this bulletin for further details.

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
INFINITI QX80	2014

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
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ITB10058A	2021-05-10. Service bulletin. IF YOU CONFRIM An oil leak at the right side block ball plug behind the alternator. ACTION: Use a punch to seat the block ball plug in the hole (refer to the Service Procedure). See this bulletin for further detail.
ITB14002	2021-05-10. Service bulletin. SERVICE INFORMATION Replacement Engine Control Modules (ECMs) for many newer Infiniti vehicles are now "Blank" ECMs. Blank ECMs come without software and must be programmed (not reprogrammed) before they will function. See this bulletin for further detail.
ITB13052	2021-05-10. Service bulletin. SERVICE INFORMATION Intelligent Key (I-Key) systems on the Applied Vehicles use two (2) different Radio Frequencies (RF) that are similar to other wireless devices; 315 MHz and 433 MHz. In the event another wireless device (e.g. aftermarket alarm system) is transmitting at the same time as an I-Key, it can interfere with the I-Key signals being received by the BCM. If there is interference with I-Key signals, the following symptoms may occur: - The I-Key is not detected, causing: - The engine to not start (no response when the Stop/Start button is pressed) - "I-Key System Error" displayed in the instrument cluster - "No I-Key Detected" displayed in the instrument cluster - Intermittent operation of the buttons on the remote (Key FOB). - Intermittent operation of the door request switches. If a vehicle has experienced the above symptoms, or a customer has reported the above symptoms, refer to Supplemental Diagnosis / Information in this bulletin. See this bulletin for further detail.
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ITB15-024a	2021-01-09. Service bulletin. 2005-2015 INFINITI VEHICLES; ECM REPROGRAMMING SERVICE INFORMATION This bulletin is no longer active. Please discard previous versions of ITB15-024.