Service bulletin ITB19-016

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	10163941
Published by NHTSA	2019-08-19
Manufacturer's number	ITB19-016
Manufacturer's date	2019-07-22
NHTSA component	ENGINE AND ENGINE COOLING

NHTSA's summary

2017-2018 QX80; ENGINE KNOCK OR TICK NOISE IF YOU CONFIRM A knock or tick noise is coming from the engine Or The customer states a knock or tick noise is heard from the engine area. ACTION Refer to REPAIR OVERVIEW on page 3.

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	2017, 2018

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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ITB13-044J	2022-03-12. Service bulletin. EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB14-011F	2022-02-10. Service bulletin. REMOTE ENGINE START NOT WORKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-007	2021-05-07. Service bulletin. MIL ON WITH DTC P062F AND/OR P0603 STORED IF YOU CONFIRM The MIL is ON and DTC P062F (EEPROM) and/or P0603 (ECM BACK UP/CIRCUIT) is stored, And The customer stated the vehicle was recently started after sitting for an extended period of time (i.e., the battery voltage was low while attempting to start the engine). ACTION 1. Test the vehicle’s 12 volt battery using the Midtronics DSS-5000. Recharge or replace the battery if necessary. 2. Erase all DTCs.
ITB17-042D	2021-04-13. Service bulletin. INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-056a	2021-02-06. Service bulletin. INTELLIGENT KEY BATTERY DISCHARGED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB20-020	2020-09-11. Service bulletin. RATTLE FROM HEAT SHIELD IF YOU CONFIRM There is a rattle noise coming from the right front of the vehicle when the engine is running, when turning the steering wheel, or when driving at parking lot speeds. ACTION Adjust the clearance between the heat shield above the exhaust front tube (RH) and the frame to 10 mm, AND Adjust the clearance between the rear cooler and heater pipe assembly and the heat shield above the exhaust front tube (RH) to 6 mm.
ITB20-019	2020-09-11. Service bulletin. VK56 CONNECTING ROD CAP BOLT SERVICE INFORMATION SERVICE INFORMATION A change has been made to the connecting rod cap bolt service part. The new service part (B in Figure 1) is visually different, but is a direct replacement for the original equipment part. IMPORTANT: See page 2 for the procedure to inspect the cap bolt service part for excessive stretch. If replacement of a single connecting rod cap bolt is indicated for any given connecting rod, both connecting rod cap bolts of the affected connecting rod must be replaced as a set.
ITB14-011d	2019-10-09. Service bulletin. REMOTE ENGINE START NOT WORKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-042b	2019-02-19. Service bulletin. INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See Amendment History on the last page. Please discard previous versions of this bulletin.