Infiniti bulletin ITB26-006
What it saysENGINE NO START WITH KEY SYSTEM ERROR AND DTC B2C20-24 STORED IN THE BCM IF YOU CONFIRM The customer states the engine will not start and “Key System Error” warning is displaying in the Information Display (Combination… NHTSA’s full summary ↓
Infiniti filed this with NHTSA as a service bulletin dated May 22, 2026, received May 30, 2026, about the electrical system. It names 1 model year (2026). 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 communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
ENGINE NO START WITH KEY SYSTEM ERROR AND DTC B2C20-24 STORED IN THE BCM IF YOU CONFIRM The customer states the engine will not start and “Key System Error” warning is displaying in the Information Display (Combination Meter) (Figure 1), AND DTC B2C20-24 for "STARTER CONTROL RELAY" is stored in the BCM. HINT: This DTC and warning message (Figure 1) may occur if the customer does not place the vehicle in Park Gear according to the Owner’s Manual for shifter operation. ACTION 1. Confirm the current ECM part number. 2. Confirm the current TCM part number. 3. Reprogram the ECM, and then the TCM, if applicable. 4. Erase the DTCs. 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.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| ITB26-006 | Service bulletin | May 22, 2026 | 11033018 | PDF, 143 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 themA 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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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 10 complaints with NHTSA since 2015. 4 of them name Electrical System — 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.
I purchased this car early this year and have had continued electrical and engine problems. I had taken this car to the dealership in a matter of 3 times in one month for the same issue. This car has engine malfunction, resulting laced engine gaskets as well as exhaust system malfunction.
2026 Infiniti QX60 · Electrical System · filed with NHTSA Oct 4, 2026 · ODI 11768827
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 electrical system
Source: same model, same component group20 other manufacturer communications filed against the Infiniti QX60 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Infiniti list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| ITB12-011R | Service bulletin | Mar 30, 2026 | TELEMATICS SERVICE INFORMATION See ITB19-029 for models built after those listed above for a different Service Procedure. SERVICE INFORMATIO… |
| ITB25-007A | Service bulletin | Oct 16, 2025 | SPEAKERS EXHIBIT INTERMITTENT BOOMING, HEAVY BASS OR RATTLING WHEN ENGINE RPM CHANGES IF YOU CONFIRM The client complains of the speakers ex… |
| ITB25-007 | Service bulletin | May 28, 2025 | SPEAKERS EXHIBIT INTERMITTENT BOOMING, HEAVY BASS OR RATTLING WHEN ENGINE RPM CHANGES APPLIED VEHICLES: 2025 QX60 (L51) APPLIED DATES: Built… |
| AN22-013B | Service bulletin | Aug 15, 2024 | SOFTWARE UPDATE POP-UP NOTIFICATION This bulletin is no longer active. Please discard previous versions of ITB22-022. |
| AN22-007B | Service bulletin | Aug 15, 2024 | DTC B2E01-96 (INTERNAL BATTERY) STORED AS CURRENT IN IVC APPLIED SYSTEMS: Vehicles equipped with Telematics SERVICE INFORMATION CONSULT has… |
| AN19-045E | Service bulletin | Aug 15, 2024 | TELEMATICS (IVC) SERVICE INFORMATION Vehicles equipped with factory telematics system HINT: If the client experiences Wi-Fi hotspot relate… |
| ITB24-002A | Service bulletin | Jul 19, 2024 | DTC P161F FOR IMMOBILIZER CODE STORED IN ECM WITH VEHICLE NO-START CONDITION APPLIED VEHICLES: APPLIED DATES: 2022-2023 QX60 (L51) Built on… |
| ITB24-009 | Service bulletin | Jul 11, 2024 | VIBRATION AND/OR NOISE FROM THE REAR OF THE VEHICLE APPLIED VEHICLES: 2022-2024 QX60 (L51) APPLIED DATES: Built on or before February 28, 20… |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Infiniti ITB26-006 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 ITB26-006 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 ITB26-006 cover?
The manufacturer filed it against 1 model year: 2026 Infiniti QX60. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built on or before 4 Sep 2025; 2025 FWD: built on or before 8 Sep 2025 — the build date is on the certification label in the driver’s door jamb.