Chevrolet bulletin N25-249834
Chevrolet filed this with NHTSA as a over-the-air update dated Mar 29, 2025, received Mar 27, 2025, about the unknown or other — 2 documents under this number. It names 3 model years (2024–2025). 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 communicationUpdate Title: Important Update N25-2498340 Release Notes: Your vehicle keeps getting better. This software update includes the following, if your vehicle is equipped: • Improves accuracy of service messages for high voltage charging system. • Reduces drain on 12V battery. • Improves performance of charging. • Improves performance of wireless communication of the Lithium Ion battery status. • Improves performance of cabin heating and windshield defrosting 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.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N25-249834 | Over-the-air update | Mar 29, 2025 | 11016075 | not yet checked |
| N25-249834 | Over-the-air update | Mar 27, 2025 | 11016029 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Chevrolet N25-249834 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 N25-249834 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 N25-249834 cover?
The manufacturer filed it against 3 model years: 2024 Chevrolet Equinox, 2025 Chevrolet Silverado, 2024 Chevrolet Silverado. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.