Stellantis bulletin 9100786
What it saysDo not replace TBM ECU or SGW. NHTSA’s full summary ↓
Stellantis filed this with NHTSA as a service bulletin dated May 14, 2026, received Apr 10, 2026, about the electrical system — 2 documents under this number: 9100786 Rev 1 and 1 more. It names 14 model years across Jeep and Ram (2024–2026). 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.
Get the next Stellantis bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationTBM2.0H Setting U0080-00. Do not replace TBM ECU or SGW. If replacement is determined, Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders, Warranty, Mopar, Customer Pay and Service Contract. Order "68" part number for New, Unsold units only. Under certain conditions, SGW Module may take longer to establish Ethernet communication after boot up. If it takes longer than 30 seconds, The TBM2.0H module will set DTC U0080 - Ethernet Bus 1. As soon as SGW responds, the TBM2.0H will demature the DTC and move it to STORED. This issue should not cause any customer related symptoms. Do not replace the following TBM Part Numbers: WL: 68639445AF,68637489AE,68663479AE. WS: 68734941AA,68729188AC. EJ: 68592344AI. KM: 68592343AL,68735975AD. DT: 68634362AJ,68624784AF,68624784AE,68735493AB,68735493AA. DJ (HDCC): 68608721AJ. If the TBM2.0H module has set the DTC U0080 and it is STORED or ACTIVE, please clear the fault and do nothing. No further diagnostics is required. ---------------------------------------------------------------------------------------------------- TBM2.0H Setting DTC B1E21 Do Not Replace the TBM ECU. Is triggered when the TBM Backup Battery is discharged, inactive, or drained. This can happen during the lifetime of the vehicle. TBM should NOT be replace for B1E21, since there is no fault on TBM. TBM battery is replaceable. Part number of the back-up battery inside TBM is 68597650AA. Do not replace the following TBM Part Numbers: WL: 68639445A$, 68663479A$. -------------------------------------------------------------------------------------------------------- TBM Setting DTC U0499-00 Please refer to SOL S268A000004 if you are attempting to replace or repair the telematics box due to DTC U0499-00. This DTC does not cause direct customer impact and cannot be cleared. Engineering is working on TBM software enhancements, tentative Q2 2026. Do not replace the following TBM Part Numbers: KM: 68592343A$
Trouble codes it names: B1E21 U0080
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 9100786 Rev 1 | Service bulletin | May 14, 2026 | 11032858 | |
| 9100786 | Service bulletin | Mar 30, 2026 | 11031247 | not found |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 68639445AF | — | — | |
| 68637489AE | — | — | |
| 68663479AE | — | — | |
| 68734941AA | — | — | |
| 68729188AC | — | — | |
| 68592344AI | — | — | |
| 68592343AL | — | — | |
| 68735975AD | — | — | |
| 68634362AJ | DJ (HDCC) | — | eBay Motors → |
| 68624784AF | DJ (HDCC) | — | eBay Motors → |
| 68624784AE | DJ (HDCC) | — | eBay Motors → |
| 68735493AB | DJ (HDCC) | — | eBay Motors → |
| 68735493AA | DJ (HDCC) | — | eBay Motors → |
| 68608721AJ | — | — | |
| 68597650AA | Do not replace the following TBM Part | — | eBay Motors → |
Read by machine from the document NHTSA serves (1 page), read Sep 29, 2026. A part number is shown only where it matches Stellantis’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. Listings and prices on eBay Motors are the seller’s.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 4 model years
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new Stellantis bulletins for one of these models
A weekly email, sent only in a week when Stellantis 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.
What owners reported
Source: NHTSA complaint databaseOwners of the 14 model years this bulletin names have filed 1,263 complaints with NHTSA since 2015. 595 of them name Electrical System — 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 2025 Ram 1500, the 27 owners who gave an odometer reading for Electrical System reported it at a median of 6,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
For the past year I have been dealing with multiple vehicle failures with our 2025 Jeep Wagoneer. I have worked with my dealer a dozen times. Adnt he vehicle has been under service for roughly 13 weeks. Each time the dealership tells me the issue was a software update or they were not able to "recreate the issue".
2025 Jeep Wagoneer · Electrical System · filed with NHTSA Jul 10, 2026 · ODI 11749619
The contact owns a 2026 Jeep Grand Wagoneer. The contact stated that while driving 45 MPH, the vehicle unexpectedly stopped while driving in traffic. The contact stated that there was an audible beeping sound after the brake failure. The contact stated that the vehicle experienced several electrical failures.
2026 Jeep Grand Wagoneer · Electrical System · filed with NHTSA Oct 5, 2026 · ODI 11769151
Stellantis issued a STAR service order regarding the digital rearview mirror not operating. I bought my truck in April of 2026 and the mirror was inoperable. Ram dealers have had the truck in the shop for over 10 weeks and cannot fix this safety issue. A STAR number and two claims numbers have been assigned.
2026 Ram 2500 · Electrical System · filed with NHTSA Jul 28, 2026 · ODI 11753228
In depth: 2024 Jeep Grand Cherokee electrical problems → · 2024 Jeep Wagoneer electrical problems → · 2026 Ram 1500 electrical problems → · 2025 Ram 1500 electrical 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 electrical system
Source: same model, same component group825 other manufacturer communications filed against these Stellantis models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 08-405-26 | Service bulletin | Oct 24, 2026 | Flash: Body Control Module (BCM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or unlock… |
| 08-404-26 | Service bulletin | Oct 24, 2026 | Flash: Radio Frequency Hub Module (RFHM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or… |
| 08-403-26 | Service bulletin | Oct 24, 2026 | Flash: Body Control Module (BCM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or unlock… |
| 08-402-26 | Service bulletin | Oct 24, 2026 | Flash: Radio Frequency Hub Module (RFHM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or… |
| S2608000041 | Service bulletin | Oct 22, 2026 | MIL-On After a Powertrain Control Module (PCM) Replacement |
| S2508000037 REV. A | Service bulletin | Oct 22, 2026 | No Start, Passive Entry Inoperative |
| S2608000040 | Service bulletin | Oct 21, 2026 | The Customer States There Is a Blinking Odometer. Firmware Over-The-Air (FOTA) Fails With Message To Visit The Dealer. |
| 08-388-26 | Service bulletin | Oct 20, 2026 | R1H Radio U43.17 Software Update - Dealer Option Customers may experience one or more of the following: SYMPTOM: ● Screen freeze or radio re… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep and Ram, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Stellantis 9100786 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 9100786 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. Every Stellantis warranty extension on file lists the ones Stellantis has filed.
Which vehicles does 9100786 cover?
The manufacturer filed it against 14 model years across 2 brands (Jeep and Ram): 2026 Jeep Cherokee, 2026 Jeep Grand Cherokee, 2025 Jeep Grand Cherokee, 2024 Jeep Grand Cherokee, 2026 Jeep Grand Wagoneer, 2025 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.