Cadillac bulletin N25-249646
Cadillac filed this with NHTSA as a over-the-air update dated Apr 1, 2025, about the unknown or other. It names 1 model year (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 communicationYour vehicle keeps getting better. This software update includes the following, if your vehicle is equipped: • Enables Dolby Atmos advanced surround sound technology to provide optimal, immersive audio experience. • Introduces Atmos object-based audio to allow sound to be placed throughout the vehicle. • Utilizes height channels to allow sound to move in a three-dimensional space with Atmos. • Active OnStar Services plan or data plan required. • Amazon Music Unlimited and Tidal currently available for use with Atmos. • Compatible streaming services that default to the highest quality track supported will utilize Atmos. • Atmos content in .mp4 format can be played from USB storage devices. 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.
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| N25-249646 | Over-the-air update | Apr 1, 2025 | 11016122 |
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 themA 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 579.5Is Cadillac N25-249646 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 N25-249646 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 N25-249646 cover?
The manufacturer filed it against 1 model year: 2025 Cadillac Optiq. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.