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Federal filingsHome›Bulletins›Chevrolet› N242478860
Manufacturer communication · Service campaign

Chevrolet service campaign N242478860

What it saysOn certain vehicles, the Virtual Cockpit Unit (VCU) may not display controls for heated seats. NHTSA’s full summary ↓

Chevrolet filed this with NHTSA as a service campaign dated Feb 10, 2025, about the engine. It names 1 model year (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.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication
What the dealer does Dealers will reprogram the body control module.

Picked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.

Customer Satisfaction Program. On certain vehicles, the Virtual Cockpit Unit (VCU) may not display controls for heated seats. Dealers will reprogram the body control module.

Manufacturer campaign id N242478860 Kind Service campaign Manufacturer date Feb 10, 2025 Received by NHTSA Feb 10, 2025 Components Engine

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
N242478860Service campaignFeb 10, 202511014065PDF, 418 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 them

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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A weekly email, sent only in a week when Chevrolet files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.

What owners reported

Source: NHTSA complaint database

Owners of the 1 model year this bulletin names have filed 56 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.

More bulletins about the engine

Source: same model, same component group

75 other manufacturer communications filed against the Chevrolet Blazer under the same component group (engine), newest first. The eight newest are listed; the rest are on the Chevrolet list.

NumberKindDatedNHTSA’s summary
N262570770-03Service campaignOct 16, 2026Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are t…
N262570770-02Service campaignSep 25, 2026Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to…
N262570770-01Service campaignSep 18, 2026Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to…
N262570770Service campaignSep 15, 2026Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to…
N262568830Service campaignAug 4, 2026Certain vehicles listed above may have a condition in which the oil filter was not adequately tightened. Dealers are to check and tighten th…
N252508350Service campaignOct 21, 2025Certain vehicles listed above, may have a condition that could cause the engine coolant thermostat to open at a lower temperature than inten…
N252502891Service campaignJul 16, 2025Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the internal differential nut was cross threaded…
N252502890Service campaignJul 16, 2025Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the internal differential nut was cross threaded…

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Chevrolet, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Chevrolet N242478860 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 N242478860 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 N242478860 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.