Chevrolet service campaign N252494770-01
Chevrolet filed this with NHTSA as a service campaign dated Jun 20, 2025, about the unknown or other. It names 157 model years (2018–2025). A service campaign 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 communicationAmendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the affected vehicles will be mailed an owner’s manual and warranty insert containing this information in English and Spanish.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N252494770-01 | Service campaign | Jun 20, 2025 | 11019670 | 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 themand 98 more model years on this site.
Also filed against model years this site has no page for: 2018 Chevrolet 3500; 2019 Chevrolet 3500; 2020 Chevrolet 3500; 2021 Chevrolet 3500; 2022 Chevrolet 3500; 2024 Chevrolet 3500HD; 2024 Chevrolet Bolt EV; 2025 Chevrolet Brightdrop 400; 2025 Chevrolet Brightdrop 600; 2018 Chevrolet C3500; 2018 Chevrolet Caprice; 2018 Chevrolet Captiva; 2018 Chevrolet G4500; 2018 Chevrolet N300; 2018 Chevrolet S10; 2018 Chevrolet Trailblazer; 2019 Chevrolet Trailblazer; 2020 Chevrolet Trailblazer; 2023 Chevrolet Trax.
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 579.5Is Chevrolet N252494770-01 a recall?
No. A service campaign 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 N252494770-01 repair free?
A service campaign 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 N252494770-01 cover?
The manufacturer filed it against 157 model years: 2025 Chevrolet Blazer, 2024 Chevrolet Blazer, 2023 Chevrolet Blazer, 2022 Chevrolet Blazer, 2021 Chevrolet Blazer, 2020 Chevrolet Blazer and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.