GM service campaign N242455301-01
What it saysCertain vehicles, equipped with a 5.3L gas engine (RPO L84), may have contamination in the engine block. NHTSA’s full summary ↓
GM filed this with NHTSA as a service campaign dated Sep 24, 2024, about the engine. It names 5 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.
What it applies to, as NHTSA’s summary states it — build dates and equipment as the manufacturer filed them. The dealer checks the VIN and the build date on the door jamb; a vehicle outside the window is not covered by this bulletin.
Customer Satisfaction Program. Certain vehicles, equipped with a 5.3L gas engine (RPO L84), may have contamination in the engine block. Dealers are to replace the engine.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N242455301-01 | Service campaign | Sep 24, 2024 | 11007986 | PDF, 194 KB |
What the document itself lists
The manufacturer titles it “REVISION: N242455301-01 – Customer Satisfaction Program”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 12740074 | L84 (5.3L) V8 Gasoline Engine | — |
| 13579648 | SEAL, A/C CMPR&CNDSR HOSE | — |
| 11546600 | BOLT, EXH MANIF | — |
| 12657093 | GASKET, EXH MANIF | — |
| 12679463 | PIPE, FUEL FEED INTER | — |
| 12679867 | GASKET, F/PMP BRKT | — |
| 12703668 | PIPE, FUEL FEED INTER | — |
| 12726902 | SEAL KIT, F/INJR (O RING) | — |
| 12669858 | BELT, ACSRY DRV PRIM | — |
| 12658178 | BELT KIT, A/C CMPR | — |
| 23129010 | GASKET, ENG OIL CLR | — |
| 22988272 | RETAINER, ENG OIL CLR | — |
| 24504031 | SEAL, OIL LVL IND TUBE (O RING) | — |
| 15035747 | SEAL, EXH SYS (METAL DONUT) | — |
| 15077362 | SEAL, EXH SYS (METAL O-RING) | — |
| 12626354 | GASKET, INT MANIF | — |
| 12735811 | FILTER, OIL | — |
| 19432331 | — | — |
| 19432456 | — | — |
| 12378390 | — | — |
| 10953456 | — | — |
| 12682391 | GASKET, W/PMP | — |
| 11549180 | BOLT, ENG MT FRM SI | — |
| 85639955 | SEAL, TRANS FLUID CLR PIPE FTG | — |
| 13579649 | SEAL, A/C CMPR&CNDSR HOSE | — |
| 12619787 | GASKET, VLV RKR ARM CVR | — |
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 3 model years
GMC 2 model years
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 5 model years this bulletin names have filed 1,030 complaints with NHTSA since 2015. 604 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 GMC Sierra, the 27 owners who gave an odometer reading for Engine reported it at a median of 25,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The contact owns a 2024 GMC Yukon XL. The contact received notification of NHTSA Campaign Number: 25V274000 ENGINE AND ENGINE COOLING); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
2024 GMC Yukon · Engine · filed with NHTSA Jun 18, 2025 · ODI 11667685
The contact owns a 2024 Chevrolet Suburban. While driving at an undisclosed speed, the vehicle hesitated while accelerating. The vehicle was previously repaired under NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the failure persisted. The local dealer was contacted; however, the vehicle was not repaired.
2024 Chevrolet Suburban · Engine · filed with NHTSA Jan 29, 2026 · ODI 11714279
Exactly what was described in the N192220080 Recall on New Model 2019 Chevy Silverados in cold climates (Like Utah winters) so at 45,280 miles the oil line popped out just like the recall described There were no oil leaks or signs of oil loss in the driveway where the truck is parked.
2024 GMC Sierra · Engine · filed with NHTSA Oct 31, 2024 · ODI 11622908
In depth: 2024 Chevrolet Silverado engine problems → · 2024 GMC Sierra engine problems → · 2024 GMC Yukon 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 group169 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… |
| N262552620 | Service campaign | May 11, 2026 | Certain vehicles may have a condition that could cause the cylinder 2 glow plug to fail. If this failure occurs, the Malfunction Indicator… |
| 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… |
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 N242455301-01 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 N242455301-01 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 N242455301-01 cover?
The manufacturer filed it against 5 model years across 2 brands (Chevrolet and GMC): 2024 Chevrolet Silverado, 2024 Chevrolet Suburban, 2024 Chevrolet Tahoe, 2024 GMC Sierra, 2024 GMC Yukon. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.