GM over-the-air update N25-250020
What it saysImproves how center display adjusts to lighting changes. NHTSA’s full summary ↓
GM filed this with NHTSA as an over-the-air update dated Jun 17, 2025, received Jul 1, 2025 — 2 documents under this number. It names 4 model years across Chevrolet and GMC (2025–2026). An 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.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communication•Improves how center display adjusts to lighting changes. •Improved warnings when a key is missing. •Improvements to automatic low beam headlamp logic. •Smoother dimming and transitions from day to night. •Updates to reduce erroneous engine alerts. •Improvements to accuracy of alerts. •Fixes to help prevent battery drain. •Fixes to responsiveness issues with Wi-Fi, Navigation, and OnStar. •Improvements to OnStar emergency calls. •Fixes to address cellular connectivity issues. 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 |
|---|---|---|---|---|
| N25-250020 | Over-the-air update | Jun 17, 2025 | 11019911 | PDF, 91 KB |
| N25-250020 | Over-the-air update | Jun 2, 2025 | 11019910 | PDF, 88 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 themChevrolet 2 model years
GMC 2 model years
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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What owners reported
Source: NHTSA complaint databaseOwners of the 4 model years this bulletin names have filed 77 complaints with NHTSA since 2015.
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 Chevrolet and GMC, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM N25-250020 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 N25-250020 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 N25-250020 cover?
The manufacturer filed it against 4 model years across 2 brands (Chevrolet and GMC): 2025 Chevrolet Colorado, 2026 Chevrolet Silverado 2500HD, 2025 GMC Canyon, 2025 GMC Sierra 2500HD. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.