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Service bulletin ITB19-027

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)
TypeService bulletin
NHTSA id10165756
Published by NHTSA2019-10-08
Manufacturer's numberITB19-027
Manufacturer's date2019-09-19
NHTSA componentELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

MIL ON WITH DTC P0087, P0101, P0448, OR P2008 IF YOU CONFIRM An applied vehicle has one or more DTCs stored, shown in Table A on page 2, AND The ECM part number is shown in Table B, starting on page 3. ACTION 1. First perform the appropriate diagnostic procedure for the stored DTC to repair the vehicle according to the Electronic Service Manual (ESM). 2. Reprogram the ECM after performing the diagnosis and repair. • -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.

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

Electrical system, Engine

Trouble codes named

P0087, P0101, P0448, P2008

Vehicles listed
INFINITI Q502016, 2017, 2018, 2019
INFINITI Q602017, 2018, 2019
INFINITI QX602015, 2016, 2017, 2018, 2019

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

Recalls for the same vehicles and component
21V7740002021-10-04. HYBRID PROPULSION SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
17V4760002017-07-27. ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
ITB12-011R2026-04-29. Service bulletin. TELEMATICS SERVICE INFORMATION See ITB19-029 for models built after those listed above for a different Service Procedure. SERVICE INFORMATION The Applied Vehicles are equipped with a wireless communication device called a Telematics Communication Unit (TCU). With an active Infiniti Connection® or Infiniti InTouch Services™, the TCU communicates with the Infiniti Data Center to provide various security and convenience services. This bulletin contains important service procedures that must be performed properly in order to set-up and maintain the telematics system for the Applied Vehicles. Ø A table has been provided on the next page that lists the model and year specific steps required to successfully configure a TCU after it has been replaced. Ø A check OFF sheet has been provided on page 21 to print and check off steps as they are performed. Please staple the completed Check OFF Sheet to the repair order.
ITB23-023A2025-02-25. Service bulletin. AEB WARNING LIGHT IS ON WITH WARNING MESSAGES DISPLAYED ON COMBINATION METER APPLIED VEHICLES: 2015-2024 Q50 (V37) 2015-2018 Q50 Hybrid (HV37) 2017-2022 Q60 (CV37) 2015-2019 Q70 (Y51) 2015-2018 Q70 Hybrid (HY51) 2019-2024 QX50 (J55) 2022-2024 QX55 (FJ55) 2015-2021 QX60 (L50) 2022-2024 QX60 (L51) 2015-2019 QX60 Hybrid (L50H) 2015-2024 QX80 (Z62) SERVICE INFORMATION The AEB system is designed to turn itself OFF during driving conditions (e.g., rain, snow, fog, etc.) that obstruct its sensors. This behavior is normal, and no repairs should be performed. When the AEB system performs an intentional shutdown, the customer may state the following: • The ICC stopped working while driving, • The AEB/FEB warning light is ON, or turned ON, while driving (Figure 1), • The message “Unavailable Front Radar Obstruction” or “Forward Driving Aids Temporarily Disabled Front Sensor Blocked See Owner's Manual” has displayed while driving (Figure 2). AND • DTC C1A16, C1A16-97, C2582, or C2582-97 is the ONLY DTC stored. Figure 1 Figure 2 Forward Driving Aids Temporarily Disabled Front Sensor Blocked See Owner’s Manual
P4A05, P4A062025-02-10. Service bulletin. ***** Retailer Announcement ***** INFINITI is committed to providing the highest levels of product quality and customer satisfaction. Therefore, INFINITI is conducting a warranty extension to Full Useful Life (FUL) of 10 years or 120,000 miles, whichever occurs first, if white smoke or oil leak occurs with MIL-On condition that requires replacement of the turbocharger assembly on model year 2016-2018 Q50 and model year 2017-2018 Q60. All other warranty terms, limitations, and conditions remain unchanged. On some model year 2016-2018 INFINITI Q50 and 2017-2018 Q60 vehicles there is a possibility that the turbocharger bearing may leak engine oil internally due to premature wear. The internal turbocharger oil leak may cause one or more of the following: Excessive smoke from the exhaust, Service Engine Soon (MIL) light and in severe cases, lack of engine power or damage to the internal components of the turbocharger. During the limited emission warranty extension period, owners are eligible for free replacement of the Turbocharger if it is determined to be required by an INFINITI trained technician. Owners of eligible vehicles will receive notification of this limited emission warranty extension during February 2025. ***** What Retailers Should Do ***** 1. Verify if vehicles are eligible for this Warranty Extension using the warranty extension page of Service Comm. Then, proceed with the instructions in item (2) below. 2. If a client contacts the retailer with a Turbocharger concern in an owned or leased vehicle, retailers should use the Electronic Service Manual (ESM) and appropriate Technical Service Bulletins (TSB) to diagnose the root cause of the customer concern and identify the correct repair to resolve the customer concerns. NOTE: Retailers will need to follow the warranty process and obtain pre-approval when the repair cost exceeds a Retailer’s Claims Administration/Authorization Limits (DCAL). CONFIRM: With the vehicle at operating temperature excessive smoke from exhaust, the Service Engine Soon (MIL) light on (with DTC P0106) due to excessive oil in the intake system from a turbocharger, or other damage to the turbocharger due to unusual bearing P4A05/P4A06 | Original Document wear and oil leakage. Proceed to replace the affected turbocharger(s) and update the vehicle to the latest engine software.
ITB17-050C2025-02-10. Service bulletin. MIL ON WITH DTC(S) STORED IN THE ECM This bulletin is no longer active. Please discard previous versions of ITB17-050.
ITB22-038D2025-02-10. Service bulletin. TURBOCHARGER REPLACEMENT PROCEDURE APPLIED ENGINES: VR30DDTT IF YOU CONFIRM One or both turbochargers require replacement. ACTION 1. Replace the affected turbocharger(s). • Refer to the SERVICE PROCEDURE in this bulletin for the updated procedure. IMPORTANT: You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair. 2. Refer to step 212 in the SERVICE PROCEDURE to confirm if the ECM needs to be reprogrammed. • 2016-2024 Q50 and 2017-2021 Q60 will require ECM reprogramming at the end of this SERVICE PROCEDURE. 3. If the ECM part number is in Table A (page 61 and 63), reprogram the ECM. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
ITB24-017A2025-01-30. Service bulletin. ENGINE ROOM SUB-HARNESS IF YOU CONFIRM DTC P06DA-00 for “ENGINE OIL PRESSURE CONTROL” is stored as current (active) with CONSULT-III plus (C-III plus). ACTION Replace the engine room sub-harness. Refer to the SERVICE PROCEDURE in this bulletin. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
ITB21-025B2024-07-19. Service bulletin. DTC C1A17-49 STORED IN LASER/RADAR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-060C2024-07-19. Service bulletin. INTELLIGENT KEY INITIALIZATION PROCEDURE STOPS OR WILL NOT CONTINUE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB13-052E2024-06-28. Service bulletin. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-006D2024-06-28. Service bulletin. CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.