GM warranty extension N242445280
What it saysCertain vehicles may have a condition that could cause the mounting bracket on the front exhaust pipe to separate from the pipe. NHTSA’s full summary ↓
GM filed this with NHTSA as a warranty extension dated Jun 12, 2024. It names 2 model years across Chevrolet and Buick (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.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · Buick.
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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 may have a condition that could cause the mounting bracket on the front exhaust pipe to separate from the pipe. If this condition occurs, a hole may develop in the exhaust pipe at the bracket location, and a rattling or increased exhaust noise may be heard. Dealers are to replace the front exhaust pipe as necessary. The repairs will be made at no charge to the customer.
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 |
|---|---|---|---|---|
| N242445280 | Warranty extension | Jun 12, 2024 | 11001569 | PDF, 216 KB |
What the document itself lists
The manufacturer titles it “N242445280 - Special Coverage”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 85542639 | Exhaust Front Intermediate Pipe | — |
| 84135650 | Catalytic Converter to Front Exhaust Pipe Gasket | — |
| 22816982 | Exhaust System Intermediate Gasket | — |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9900894 | Customer Reimbursement Approved - For USA and Canada dealers only - For Export… | 0.2 hrs |
| 9900895 | Customer Reimbursement Denied – For USA dealers only N/A ZREG ** For USA and Canada… | 20 hrs |
Read by machine from the document NHTSA serves (6 pages), read Sep 30, 2026. A part number is shown only where it matches GM’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 themChevrolet 1 model year
Buick 1 model year
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 2 model years this bulletin names have filed 117 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 Buick, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM N242445280 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 N242445280 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 N242445280 cover?
The manufacturer filed it against 2 model years across 2 brands (Chevrolet and Buick): 2022 Buick Enclave, 2022 Chevrolet Traverse. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.