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HomeBulletinsChevrolet N25-249243
Manufacturer communication · Over-the-air update

Chevrolet bulletin N25-249243

Chevrolet filed this with NHTSA as a over-the-air update dated Mar 21, 2025, received Mar 27, 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 communication

Update Title: Software Update GM N25-249243 Release Notes: Your vehicle keeps getting better. This software update includes the following, if your vehicle is equipped: Refinements: •Improves performance of front wiper heating system 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 N25-249243 Kind Over-the-air update Manufacturer date Mar 21, 2025 Received by NHTSA Mar 27, 2025 Components Unknown Or Other

Document filed under this number

DocumentKindDatedNHTSA id
N25-249243Over-the-air updateMar 21, 202511016019

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 Chevrolet N25-249243 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 N25-249243 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 N25-249243 cover?

The manufacturer filed it against 1 model year: 2025 Chevrolet Blazer. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.