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Manufacturer communication · Over-the-air update

GMC bulletin N25-250520

GMC filed this with NHTSA as a over-the-air update dated May 6, 2025, received May 30, 2025, about the unknown or other — 2 documents under this number. It names 4 model years (2023–2025). A over-the-air update is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.

What the bulletin says

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

Software Update for your 24MY Chevrolet Tahoe/Suburban GMC Yukon Cadillac Escalade: • Enables the active cabin ventilation feature. • When windows are remotely lowered using the key fob, the HVAC blower will turn on. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.

Manufacturer campaign id N25-250520 Kind Over-the-air update Manufacturer date May 6, 2025 Received by NHTSA May 30, 2025 Components Unknown Or Other First dated May 5, 2025

Documents filed under this number

DocumentKindDatedNHTSA id
N25-250520Over-the-air updateMay 6, 202511018711
N25-250520Over-the-air updateMay 5, 202511018709

The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. 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. Quote it 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.

Common questions

Source: NHTSA, 49 CFR 579.5

Is GMC N25-250520 a recall?

No. A over-the-air update 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 N25-250520 repair free?

A over-the-air update is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.

Which vehicles does N25-250520 cover?

The manufacturer filed it against 4 model years: 2025 GMC Sierra, 2024 GMC Sierra, 2024 GMC Yukon, 2023 GMC Yukon. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.