Chevrolet service campaign N242484760
What it saysCertain vehicles listed above may have a condition that could cause the engine coolant thermostat to open at a lower temperature than intended. NHTSA’s full summary ↓
Chevrolet filed this with NHTSA as a service campaign dated Feb 3, 2025, about the engine. It names 1 model year (2021). 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 communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
Special Coverage - Certain vehicles listed above may have a condition that could cause the engine coolant thermostat to open at a lower temperature than intended. If this condition were to occur, the Malfunction Indicator Lamp (Check Engine Light) will illuminate and a diagnostic trouble code will set. Additionally in some cases, the engine cooling fans may run after the engine is switched off. Dealers are to replace the engine coolant thermostat as necessary. The repairs will be made at no charge to the customer.
Trouble codes it names: P0128 all 1 read from the document itself; NHTSA’s summary names none
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N242484760 | Service campaign | Feb 3, 2025 | 11013460 | PDF, 191 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 12678784 | Engine Coolant Thermostat and Housing | — |
| 12649985 | Water Outlet Seal | — |
| 12648547 | Engine Coolant Air Bleed Pipe Seal | — |
| 12648665 | Intake Manifold Seal | — |
| 12346290 | — | — |
| 10953464 | — | — |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9900917 | Engine Coolant Thermostat Replacement Add: Diagnostic Time | 2.5 hrs |
| 9900918 | Customer Reimbursement Approved - For USA and Canada dealers only - For Export… | 0.2 hrs |
| 9900919 | Customer Reimbursement Denied – For USA dealers only N/A ZREG ** For USA and Canada… | 20 hrs |
Read by machine from the document NHTSA serves (4 pages), read Sep 30, 2026. A part number is shown only where it matches Chevrolet’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote.
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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 20 complaints with NHTSA since 2015. 3 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
Dealership replaced all 16 lifters and replaced camshaft. Dealerships repair took 28 days. Repair cost $4k out of my pocket and Chevrolet Corporate covered $4700 due to the know lifter issue with their engines.
2021 Chevrolet Camaro · Engine · filed with NHTSA Apr 29, 2026 · ODI 11734471
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 group47 other manufacturer communications filed against the Chevrolet Camaro under the same component group (engine), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 22-NA-080 | Service bulletin | Sep 6, 2025 | This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder. |
| 00-06-01-026R | Service bulletin | Jun 5, 2025 | This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. |
| 23-NA-170 | Service bulletin | May 16, 2025 | This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure. |
| 23-NA-153 | Service bulletin | May 15, 2025 | The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is… |
| 15-NA-010 | Service bulletin | May 7, 2025 | This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California… |
| 25-NA-100 | Service bulletin | Apr 18, 2025 | This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and regist… |
| 25-NA-052 | Service bulletin | Mar 25, 2025 | This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the… |
| PIP5824D | Service bulletin | Feb 25, 2025 | This Preliminary information communicates a possible issue with the active fuel management rockers causing a misfire and the correction for… |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Chevrolet N242484760 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 N242484760 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 N242484760 cover?
The manufacturer filed it against 1 model year: 2021 Chevrolet Camaro. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.