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Manufacturer communication · Service campaign

Jeep service campaign 47B Combo REV2

What it saysLabor time reduced for oil pump replacement and 4x4 equipped opt. eqp. NHTSA’s full summary ↓

Jeep filed this with NHTSA as a service campaign dated Jan 13, 2026, received Jan 21, 2026, about the engine. It names 4 model years (2023–2024). 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 communication

Labor time reduced for oil pump replacement and 4x4 equipped opt. eqp.

Kind Service campaign Manufacturer date Jan 13, 2026 Received by NHTSA Jan 21, 2026 Components Engine

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
47B Combo REV2Service campaignJan 13, 202611027748PDF

What the document itself lists

Parts the bulletin names

Part numberDescriptionQty
68358479AHOil Pump 3.0L SO—
68585094AFOil Pump 3.0L HO—
68374054ABO-Ring Oil Pickup Tube—
68359147ACSeal, Oil Pan to Block—
68359145ACGasket Oil Pan—
68466307ABOil Filter—
68523994AAOil, 0W20 Quart—
06506497AABolt, Driveshaft to Rear1

Read by machine from the document NHTSA serves (4 pages), read Sep 30, 2026. A part number is shown only where it matches Jeep’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 them

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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A weekly email, sent only in a week when Jeep files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.

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What owners reported

Source: NHTSA complaint database

Owners of the 4 model years this bulletin names have filed 300 complaints with NHTSA since 2015. 129 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.

While driving in Oyster Bay NY on a mild day, around 75-80 degrees, engine fan started get louder and louder as if the truck was in a high heat condition. Fan only kept getting louder, i was able to access the digtial temperature gauge and temp was reading over 250 degrees. However no warning light or message came onto the screen.

2024 Jeep Wagoneer · Engine · filed with NHTSA Nov 1, 2026 · ODI 11774977

Transmission and fuel injector malfunction: Vehicle shutters upon acceleration. Particularly noticeable driving up hill or when maintaining speeds. Vehicle is available for inspection upon request. Jeep acknowledges the issue, noted a malfunction with PICO data and a fuel injector repair was done under warranty.

2024 Jeep Grand Wagoneer · Engine · filed with NHTSA May 18, 2026 · ODI 11738549

The contact owns a 2023 Jeep Grand Wagoneer. The contact stated that while his wife was driving approximately 65 MPH on the highway, the vehicle lost motive power and shut off. The vehicle was later towed to the local dealer, who diagnosed that the thermostat had failed, causing the engine to overheat.

2023 Jeep Grand Wagoneer · Engine · filed with NHTSA Aug 6, 2025 · ODI 11678825

In depth: 2023 Jeep Wagoneer 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 group

59 other manufacturer communications filed against these Jeep models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Jeep list.

NumberKindDatedNHTSA’s summary
9100949Service bulletinOct 20, 2026oil filter If an engine oil leak develops from gasket of a newly installed MOPAR engine oil filter, please replace it with an equivalent BPr…
18-083-26Service bulletinOct 10, 2026Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mus…
18-082-26Service bulletinOct 10, 2026Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mus…
18-074-26Service bulletinOct 10, 2026Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mus…
9100861Service bulletinAug 18, 2026PUMP, Auxiliary Coolant Before replacing the Auxiliary Coolant Pump, please perform the following steps: 1) Key ON/OFF and let the after-run…
09-012-26Service bulletinJun 18, 2026Oil Pan Leak Customers may experience the following: SYMPTOM: ● 'Low Oil Level' message on in the Instrument Panel Cluster (IPC). ● Oil Leak…
9100832Service bulletinJun 9, 2026Before replacing the starter, please follow the published diagnostics in the Service Information at 08 - Electrical / 8F - Engine Systems /…
9100790Service bulletinMar 26, 2026Before replacing the water pump on 3.0L SO/HO, please follow the updated WATER PUMP INSPECTION diagnostic procedure to confirm the leak pers…

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Jeep, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Jeep 47B Combo REV2 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 47B Combo REV2 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 47B Combo REV2 cover?

The manufacturer filed it against 4 model years: 2024 Jeep Grand Wagoneer, 2023 Jeep Grand Wagoneer, 2024 Jeep Wagoneer, 2023 Jeep Wagoneer. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.