Service bulletin ITB20-020

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	10179559
Published by NHTSA	2020-09-11
Manufacturer's number	ITB20-020
Manufacturer's date	2020-08-13
NHTSA component	ENGINE AND ENGINE COOLING

NHTSA's summary

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.

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	2018, 2019, 2020

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
ITB17-042E	2022-03-12. Service bulletin. 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.
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.
ITB20-019	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.
P0A06 2019 Q70 a	2020-04-09. Service bulletin. Engine Control Module (ECM) Reprogram Voluntary Service Campaign *** Campaign Summary * INFINITI is conducting a Voluntary Service Campaign to reprogram the engine control module (ECM) with countermeasure software in certain INFINITI 2019 model year Q70 and QX80 vehicles. The current software installed may allow the Variable Valve Timing (VVT) solenoid valve diagnosis to continue to draw current when the engine is off. This condition may result in a reduction of the battery life. * What Retailers Should Do *** 1. Verify if vehicles are affected by this Voluntary Service Campaign using Service Comm or DBS National Service History – Open Campaign I.D. P0A06 • - New vehicles in retailer inventory can also be identified through the attached VIN list or by using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). • - Refer to IPSB 15-286 for additional information • - Please continue to check newly arriving inventory for campaign applicability. 2. Retailers are requested to repair any affected vehicles in retailer new or pre-owned inventory to ensure client satisfaction. 3. Retailers should use ITB20-013 to correct any vehicles subject to this campaign. 4. Once repaired, retailers should submit the claim, using the claims coding provided, and release the vehicle.
ITB20-013	2020-04-08. Service bulletin. VOLUNTARY SERVICE CAMPAIGN 2019 Q70 AND 2019 QX80; ENGINE CONTROL MODULE INTRODUCTION Infiniti is conducting this voluntary service campaign on certain specific model year 2019 Q70 and 2019 QX80 vehicles. The Engine Control Module (ECM) will be inspected, and reprogrammed if it applies. This service will be performed at no charge to the customer for parts or labor. IDENTIFICATION NUMBER Infiniti has assigned identification number P0A06 to this campaign. This number must appear on all communication and documentation of any nature dealing with this campaign. RETAILER RESPONSIBILITY Retailers are to repair vehicles falling within range of this campaign that enter the service department. This includes vehicles purchased from private parties, vehicles presented by transient (tourists) owners, and vehicles in a retailer’s inventory.
ITB20-007	2020-04-07. Service bulletin. MIL ON WITH DTC P0087 IF YOU CONFIRM The MIL is ON and DTC P0087 (FRP CONTROL SYSTEM) is stored in the ECM. ACTION 1. Perform the appropriate diagnostic and repair procedure according to the ESM. 2. Reprogram the ECM, if applicable. • The ECM reprogram in this Service Procedure is not a repair for the DTC, but instead updates the way the permanent DTC is stored and allowed to be erased. The DTC must be properly diagnosed and repaired before the reprogram is applied.