GM service campaign N242439340-01
What it saysOn certain vehicles, the front electric drive unit may not have passed the end of line test. NHTSA’s full summary ↓
GM filed this with NHTSA as a service campaign dated Aug 16, 2024, about the engine. It names 2 model years across Chevrolet and GMC (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.
One page for every brand it was filed under. Each brand’s bulletins: Chevrolet · GMC.
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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.
Customer Satisfaction Program. On certain vehicles, the front electric drive unit may not have passed the end of line test. Dealers are to replace the front electric drive transmission module and reprogram the drive motor control module.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N242439340-01 | Service campaign | Aug 16, 2024 | 11006440 | PDF, 608 KB |
What the document itself lists
The manufacturer titles it “REVISION: N242439340-01 – Customer Satisfaction Program”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 24058311 | MODULE ASM-FRT ELEC DRV TRANSAXLE | — |
| 85034815 | SHAFT ASM-FRT WHL DRV HALF | — |
| 85084403 | SHAFT ASM-FRT WHL DRV HALF | — |
| 13579646 | SEAL,A/C CMPR HOSE | — |
| 13579648 | SEAL, A/C CMPR & CNDSR HOSE (SLIMLINE WASHER,1/2") | — |
| 13579649 | SEAL, A/C EVPR INL TUBE (SLIMLINE WASHER,3/8") | — |
| 24048716 | RING-OUTPUT SHF RET | — |
| 24041753 | SEAL-OUTPUT SHF (O RING) | — |
| 11610916 | BOLT, DRV MOT MT (M12X1.75X110) | — |
| 11609605 | BOLT,DRV MOT RR MT (M12X1.75X60) | — |
| 11602943 | PLUG, TRANS FLUID DRN (M12X1.75X14,6 INT) | — |
| 19352619 | — | — |
| 19352620 | — | — |
| 12378390 | — | — |
| 10953456 | — | — |
| 85034818 | SHAFT ASM-FRT WHL DRV HALF | — |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 9107182 | Replace Front Electric Drive Transmission Module (Hummer EV) (includes reprogramming… | 12.9 hrs |
| 9107183 | Replace Front Electric Drive Transmission Module (Silverado EV) (includes… | 15 hrs |
Read by machine from the document NHTSA serves (8 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
GMC 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 362 complaints with NHTSA since 2015. 169 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 2024 Chevrolet Silverado, the 22 owners who gave an odometer reading for Engine reported it at a median of 11,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
In depth: 2024 Chevrolet Silverado engine problems →
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 group163 other manufacturer communications filed against these GM models 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 |
|---|---|---|---|
| N262576260 | Service campaign | Oct 15, 2026 | General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition that could cause a small exhaust le… |
| N262568830 | Service campaign | Aug 4, 2026 | Certain vehicles listed above may have a condition in which the oil filter was not adequately tightened. Dealers are to check and tighten th… |
| N262548050 | Service campaign | Apr 24, 2026 | Certain vehicles, may have a condition that could cause the Catalytic Converter to fail. If this failure occurs, the Malfunction Indicator L… |
| N252494003-02 | Service campaign | Jan 21, 2026 | Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have… |
| 25-NA-339 | Service bulletin | Nov 6, 2025 | Under Field Actions N252494000, N252494001, the service procedure includes performing a PICO test on vehicle engines within the identified s… |
| N252508341 | Service campaign | Sep 16, 2025 | Certain vehicles listed above, may have a condition that could cause the engine coolant control valve to fail an onboard vehicle diagnostic… |
| N252508340 | Service campaign | Sep 16, 2025 | Certain vehicles may have a condition that could cause the engine coolant control valve to fail. If this condition were to occur, the Malfun… |
| 24-NA-241 | Service bulletin | Sep 6, 2025 | This informational bulletin advises the technician of a part number change for long block engines used in the trucks noted. |
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 GMC, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is GM N242439340-01 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 N242439340-01 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 N242439340-01 cover?
The manufacturer filed it against 2 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Silverado, 2024 GMC Hummer EV. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.