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Manufacturer communication · Service bulletin

Infiniti bulletin ITB22-038D

What it saysTurbocharger replacement procedure applied engines: VR30DDTT if YOU confirm one or both turbochargers require replacement. NHTSA’s full summary ↓

Infiniti filed this with NHTSA as a service bulletin dated Feb 4, 2025, received Feb 10, 2025, about the engine. It names 15 model years (2016–2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

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.

Kind Service bulletin Manufacturer date Feb 4, 2025 Received by NHTSA Feb 10, 2025 Components Engine

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
ITB22-038DService bulletinFeb 4, 202511014066PDF, 5,970 KB

The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.

Model years it names

Source: as the manufacturer filed them

A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.

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A weekly email, sent only in a week when Infiniti files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.

What owners reported

Source: NHTSA complaint database

Owners of the 15 model years this bulletin names have filed 263 complaints with NHTSA since 2015. 81 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.

While driving home, I experienced an extreme amount of white smoke coming from my exhaust. The smoke was so severe that I could barely see vehicles behind me. Because I was on the freeway and concerned about my safety and the safety of others, I pulled over when safe and had the vehicle towed home and then to an Infiniti dealership for…

2018 Infiniti Q60 · Engine · filed with NHTSA Aug 22, 2026 · ODI 11758695

The contact owns a 2021 Infiniti Q50. The contact stated that while driving approximately 70 - 80 MPH and attempting to accelerate, the vehicle would accelerate but failed to exceed 10 MPH. The accelerator pedal had to be depressed to the floorboard for the vehicle to accelerate; however, the vehicle still failed to exceed 10 MPH.

2021 Infiniti Q50 · Engine · filed with NHTSA Sep 8, 2026 · ODI 11762666

The contact owns a 2021 INFINITI Q60. The contact stated while driving approximately 15 MPH, the vehicle shifted into limp mode. The contact stopped the vehicle and had the vehicle towed to a local dealer. The contact stated that several unknown warning lights were illuminated. The vehicle was diagnosed with needing ECM replaced.

2021 Infiniti Q60 · Engine · filed with NHTSA Sep 27, 2021 · ODI 11434554

A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.

More bulletins about the engine

Source: same model, same component group

6 other manufacturer communications filed against these Infiniti models under the same component group (engine), newest first.

NumberKindDatedNHTSA’s summary
P4A05, P4A06Service bulletinFeb 4, 2025***** Retailer Announcement ***** INFINITI is committed to providing the highest levels of product quality and customer satisfaction. Theref…
ITB17-050CService bulletinFeb 4, 2025MIL ON WITH DTC(S) STORED IN THE ECM This bulletin is no longer active. Please discard previous versions of ITB17-050.
ITB22-038CService bulletinNov 6, 2023TURBOCHARGER REPLACEMENT PROCEDURE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versi…
ITB22-038BService bulletinAug 4, 2023TURBOCHARGER REPLACEMENT PROCEDURE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versi…
REV2 R22D1 Q50_QService bulletinJun 14, 2023ISS Reprogram Voluntary Emission Recall Campaign REVISED June 14, 2023 Please discard earlier versions of this bulletin. The announcem…
REV1 R22D1 Q50_QService bulletinJun 10, 2023ISS Reprogram Voluntary Emission Recall Campaign REVISED June 10, 2023 Please discard earlier versions of this bulletin. The announcem…

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Infiniti, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Infiniti ITB22-038D a recall?

No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.

Is the ITB22-038D repair free?

Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.

Which vehicles does ITB22-038D cover?

The manufacturer filed it against 15 model years: 2024 Infiniti Q50, 2023 Infiniti Q50, 2022 Infiniti Q50, 2021 Infiniti Q50, 2020 Infiniti Q50, 2019 Infiniti Q50 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.