Chevrolet service campaign N242471460-01
What it saysCertain vehicles may have been built with an Electric Drive Unit mounting bolt that is too long, causing damage to the Drive Unit case. NHTSA’s full summary ↓
Chevrolet filed this with NHTSA as a service campaign dated Aug 20, 2026, about the power train. It names 2 model years (2024). 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.
Certain vehicles may have been built with an Electric Drive Unit mounting bolt that is too long, causing damage to the Drive Unit case. Dealers will inspect and replace the Electrical Drive Unit if necessary.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N242471460-01 | Service campaign | Aug 20, 2026 | 11036306 | PDF, 685 KB |
What the document itself lists
The manufacturer titles it “UPDATE: N242471460-01 – Customer Satisfaction Program”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 24071551 | MODULE, FRT ELEC DRV TRANSAXLE | — |
| 24292572 | GASKET-DRV MOT PWR INV MDL | — |
| 24079628 | SEAL-DRV MOT PWR DSTRBN CONT MDL | — |
| 13579648 | SEAL, A/C CMPR HOSE | — |
| 13579646 | SEAL, A/C EVPR HOSE | — |
| 13579649 | SEAL, A/C CNDSR HOSE | — |
| 11588743 | BOLT, DRV MOT MT | — |
| 11610916 | BOLT, DRV MOT MT | — |
| 11609605 | BOLT, DRV MOT RR MT | — |
| 11612295 | NUT, FRT WHL DRV SHF | — |
| 11604736 | WASHER, FRT WHL DRV SHF | — |
| 11602724 | BOLT, FRT SUSP STRUT | — |
| 24294502 | RING, OUTPUT SHF RET | — |
| 24047424 | SEAL, OUTPUT SHF | — |
| 19352619 | — | — |
| 19352620 | — | — |
| 12378390 | — | — |
| 10953456 | COOLANT | — |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9107701 | Customer Driven Vehicles - Inspect for Fluid Only – No Further Action Required | 0.3 hrs |
| 9107702 | Dealer Inventory Vehicles - Inspect for Fluid and Drive Motor Mount Fastener – No… | 0.4 hrs |
Read by machine from the document NHTSA serves (8 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 2 model years this bulletin names have filed 324 complaints with NHTSA since 2015.
The transmission in my 2024 Chevrolet Blazer is very noisy often making whining and grinding sounds and I experience rough shifting and transmission hesitation during acceleration or gear changes
2024 Chevrolet Blazer · Power Train · filed with NHTSA Sep 22, 2025 · ODI 11688917
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 power train
Source: same model, same component group70 other manufacturer communications filed against these Chevrolet models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Chevrolet list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| N252502891-01 | Service campaign | Aug 20, 2026 | Certain vehicles may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will rev… |
| N252502890-01 | Service campaign | Aug 20, 2026 | Certain vehicles may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will rev… |
| PIE0814B | Service bulletin | May 7, 2025 | This engineering information (EI) closure ends the need for requesting further information from technicians in regard to the Service AWD Lam… |
| PIP6036A | Service bulletin | Apr 2, 2025 | This Preliminary information communicates diagnostic aids for a surge or fishbite concern |
| 25-NA-001 | Service bulletin | Mar 13, 2025 | This service bulletin provides repair information to correct a customer concern of a transmission fluid leak. |
| PIE0814A | Service bulletin | Mar 12, 2025 | This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer lis… |
| PIP5966A | Service bulletin | Mar 2, 2025 | This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement |
| PIP5981D | Service bulletin | Feb 26, 2025 | This Preliminary information communicates ordering process for the front and rear drive units are on restriction for all listed EV vehicles… |
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 N242471460-01 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 N242471460-01 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 N242471460-01 cover?
The manufacturer filed it against 2 model years: 2024 Chevrolet Blazer, 2024 Chevrolet Equinox. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.