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Manufacturer communication · Service bulletin

Infiniti bulletin ITB25-006

What it saysVEHICLE DISPLAYS “HEIGHT CONTROL SUSPENDED PLEASE WAIT FOR SYSTEM TO COOL” IF YOU CONFIRM The vehicle displays “Height control suspended Please wait for system to cool”, AND DTC C1C62-4B for “Control Unit” is stored… NHTSA’s full summary ↓

Infiniti filed this with NHTSA as a service bulletin dated May 9, 2025, received Jun 4, 2025, about the suspension. It names 1 model year (2025). 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
Built on or before 16 Jul 2024 “Built on or before July 16, 2024”

What 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.

VEHICLE DISPLAYS “HEIGHT CONTROL SUSPENDED PLEASE WAIT FOR SYSTEM TO COOL” IF YOU CONFIRM The vehicle displays “Height control suspended Please wait for system to cool”, AND DTC C1C62-4B for “Control Unit” is stored in the Air Suspension Electronic Control Unit (ECU). ACTION Follow the SERVICE PROCEDURE in this bulletin to: 1. Confirm the current Air Suspension ECU part number. 2. Reprogram the Air Suspension ECU, if applicable. HINT: The Air Suspension ECU is part of the Air Compressor Assembly. 3. Erase all DTCs.

Kind Service bulletin Manufacturer date May 9, 2025 Received by NHTSA Jun 4, 2025 Components Suspension

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
ITB25-006Service bulletinMay 9, 202511019067PDF, 150 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.

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What owners reported

Source: NHTSA complaint database

Owners of the 1 model year this bulletin names have filed 8 complaints with NHTSA since 2015. 1 of them name Suspension — 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.

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.

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 ITB25-006 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 ITB25-006 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 ITB25-006 cover?

The manufacturer filed it against 1 model year: 2025 Infiniti QX80. 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 16 Jul 2024 — the build date is on the certification label in the driver’s door jamb.