Stellantis bulletin 9100790
What it saysBefore replacing the water pump on 3.0L SO/HO, please follow the updated WATER PUMP INSPECTION diagnostic procedure to confirm the leak persists "09 - Engine, 3.0L GMET6 / Cooling System / Engine Cooling / Diagnosis… NHTSA’s full summary ↓
Stellantis filed this with NHTSA as a service bulletin dated Mar 26, 2026, received Apr 1, 2026, about the engine. It names 13 model years across Jeep, Ram and Dodge (2022–2026). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
One page for every brand it was filed under. Each brand’s bulletins: Jeep · Ram · Dodge.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationBefore replacing the water pump on 3.0L SO/HO, please follow the updated WATER PUMP INSPECTION diagnostic procedure to confirm the leak persists "09 - Engine, 3.0L GMET6 / Cooling System / Engine Cooling / Diagnosis and Testing / COOLING SYSTEM LEAKS"
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 9100790 | Service bulletin | Mar 26, 2026 | 11030427 |
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 themJeep 10 model years
Ram 2 model years
Dodge 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 13 model years this bulletin names have filed 1,068 complaints with NHTSA since 2015. 285 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.
As I was pulling up to a red light, the vehicle threw itself into park and completely stopped and would not move. I was unable to put gear into drive. Thankfully, I was not going at full speed. After a couple minutes, I was able to put my foot on brake to restart the car. At this point, the engine and battery light were on as well.
2022 Jeep Wagoneer · Engine · filed with NHTSA Sep 16, 2022
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
The contact owns a 2025 Jeep Wagoneer S. The contact stated that while driving at 40 MPH, the vehicle lost motive power and stalled. While driving approximately 10 - 40 MPH on two separate occasions, the failure reoccurred. The contact stated that the roof was vibrating. There were no warning lights illuminated.
2025 Jeep Wagoneer · Engine · filed with NHTSA Feb 9, 2026
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 group120 other manufacturer communications filed against these Stellantis models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 18-078-26 | Service bulletin | Sep 26, 2026 | Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mus… |
| 9100898 | Service bulletin | Sep 8, 2026 | Engine PNs: MY 24-26 WD/DT (5.7L) Code P00B is being misdiagnosed and incorrect parts are being installed causing over repair. Refer to SOL… |
| 18-077-26 | Service bulletin | Aug 19, 2026 | Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may… |
| 9100861 | Service bulletin | Aug 18, 2026 | PUMP, Auxiliary Coolant Before replacing the Auxiliary Coolant Pump, please perform the following steps: 1) Key ON/OFF and let the after-run… |
| 18-075-26 | Service bulletin | Jul 24, 2026 | Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle mus… |
| 18-072-26 | Service bulletin | Jul 22, 2026 | GMET6 SO MIL Changes At Elevation Above 1,000 FT Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle m… |
| 09-012-26 | Service bulletin | Jun 18, 2026 | Oil Pan Leak Customers may experience the following: SYMPTOM: ● 'Low Oil Level' message on in the Instrument Panel Cluster (IPC). ● Oil Leak… |
| S2609000009 | Service bulletin | Jun 15, 2026 | Check Engine Light (CEL) Illuminated with Diagnostic Trouble Code (DTC) P0106 Manifold Absolute Pressure Sensor Performance Setting In The P… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep, Ram and Dodge, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Stellantis 9100790 a recall?
No. A service bulletin 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 9100790 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does 9100790 cover?
The manufacturer filed it against 13 model years across 3 brands (Jeep, Ram and Dodge): 2026 Dodge Charger, 2026 Jeep Grand Wagoneer, 2025 Jeep Grand Wagoneer, 2024 Jeep Grand Wagoneer, 2023 Jeep Grand Wagoneer, 2022 Jeep Grand Wagoneer and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.