Chevrolet warranty extension N252508360
What it saysCertain vehicles listed above may have a condition that could cause the turbocharger to fail. NHTSA’s full summary ↓
Chevrolet filed this with NHTSA as a warranty extension dated Nov 3, 2025, about the engine. It names 1 model year (2022). A warranty extension 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 turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Additionally, a message may be displayed indicating the vehicle’s available engine power is reduced. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 3, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 3, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the turbocharger as necessary. The repairs will be made at no charge to the customer.
Trouble codes it names: P0299 all 1 read from the document itself; NHTSA’s summary names none
One of the 432 warranty extensions and special-coverage programs on file — every make, with the term each runs to.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N252508360 | Warranty extension | Nov 3, 2025 | 11024775 | PDF, 408 KB |
What the document itself lists
The manufacturer titles it “N252508360 - Special Coverage”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 25207489 | Turbocharger | — |
| 12662184 | Turbocharger Oil Feed Pipe Washer | — |
| 12653753 | Turbocharger Oil Return Pipe Gasket | — |
| 12685113 | Turbocharger Pipe Fitting | — |
| 12640468 | Turbocharger Oil Return Pipe Gasket | — |
| 11612078 | Turbocharger Nut | — |
| 12673929 | Turbocharger Heat Shield | — |
| 25204202 | Turbocharger Heat Shield | — |
| 12641115 | Turbocharger to Catalytic Converter Gasket | — |
| 23238284 | Exhaust System Front Gasket | — |
| 12643268 | Turbocharger Exhaust Pipe Clamp | — |
| 12662185 | Turbocharger Coolant and Oil Feed Pipe Seal | — |
| 12662186 | Turbocharger Oil Feed Pipe Seal | — |
| 12676405 | Turbocharger Coolant Feed Pipe Seal | — |
| 22816982 | Exhaust System Intermediate Gasket | — |
| 12346290 | Dexcool | — |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9900955 | Turbocharger Replacement Add: Diagnostic Time | 4.6 hrs |
| 9900956 | Customer Reimbursement Approved - For USA and Canada dealers only - For Export… | 0.2 hrs |
| 9900957 | Customer Reimbursement Denied – For USA dealers only N/A ZREG ** Please Note: The… | 20 hrs |
Read by machine from the document NHTSA serves (5 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 99 complaints with NHTSA since 2015. 39 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.
On the 2022 Chevrolet Malibu, the 18 owners who gave an odometer reading for Engine reported it at a median of 82,010 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
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 group30 other manufacturer communications filed against the Chevrolet Malibu 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 |
|---|---|---|---|
| 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-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… |
| 18-NA-069 | Service bulletin | Apr 10, 2025 | This service bulletin provides a service procedure to correct conditions of Poor Engine Performance in Extremely cold weather conditions, CA… |
| PIP6053 | Service bulletin | Apr 1, 2025 | This Preliminary information communicates a possible folded seal on the rear crankshaft |
| 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… |
| 22-NA-074 | Service bulletin | Jan 30, 2025 | This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the… |

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 N252508360 a recall?
No. A warranty extension 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 N252508360 repair free?
A warranty extension 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 N252508360 cover?
The manufacturer filed it against 1 model year: 2022 Chevrolet Malibu. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.