Stellantis bulletin 9100389
What it saysCAN Star Block Connector Customer finds MIL light on and technician finds DTC for loss of communication on one or more modules. NHTSA’s full summary ↓
Stellantis filed this with NHTSA as a service bulletin dated Jul 22, 2024, received Jul 24, 2024, about the electrical system. It names 19 model years across Jeep, Ram and Chrysler (2023–2025). 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 · Chrysler.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationCAN Star Block Connector Customer finds MIL light on and technician finds DTC for loss of communication on one or more modules. In repair procedure the dealerships are replacing the CAN star block connector during their root cause process with returned parts showing no trouble found. Here is a list of steps the dealers can follow to determine if they have a defective CAN star block connector using a multimeter: Step 1: Visually review CAN star block for damage and ensure back cover has all locking tabs engaged. If a bent pin, cracked or damaged housing or locking tab is not engaged is observed then replacement is required. Step 2: Identify Connector #1 as the 3 Pin Connector cavity Step 3: Measure resistance between Pin#1 and Pin#2 in Connector #1. Acceptable values are 120.4 Ohms to 139.8 Ohms. If resistance is outside of this range then replacement is required. Step 4: Measure the continuity between Pin#1 in Connector #1 to Pin#1 in each of the other 2 Pin connector cavities. If continuity is not found then a replacement is required. Step 5: Measure the continuity between Pin#2 in Connector #1 to Pin#2 in each of the other 2 Pin connector cavities. If continuity is not found then a replacement is required.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 9100389 | Service bulletin | Jul 22, 2024 | 11005199 | PDF, 58 KB |
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 6 model years
Ram 7 model years
Also filed against model years this site has no page for: 2023 Ram 4500; 2024 Ram 4500; 2023 Ram 5500; 2024 Ram 5500.
Chrysler 6 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 15 model years this bulletin names have filed 2,025 complaints with NHTSA since 2015. 982 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 2024 Jeep Wrangler, the 64 owners who gave an odometer reading for Electrical System reported it at a median of 15,000 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 rented a 2025 Chrysler Pacifica Hybrid from Budget Car Rental (2176 Main St, Dunedin, FL 34698). The contact stated that while driving approximately 55 MPH, the contact believed that the vehicle was being tracked via Bluetooth throughout a trip from Florida to Kansas City to New York and back to Florida, as the vehicle was…
2025 Chrysler Pacifica · Electrical System · filed with NHTSA Aug 19, 2026 · ODI 11757923
This Jeep gladiator has not started on several occasions. And is now stuck in our driveway not turning over the engine. This apparently is a known problem and has stranded my family. Has Also stopped all the electrical with the engine driving down the road when my husband was returning from work, this is a safety issue please respond
2023 Jeep Gladiator · Electrical System · filed with NHTSA Jul 19, 2024 · ODI 11603396
The contact owns a 2025 Jeep Wrangler 4XE. The contact received notification of NHTSA Campaign Number: 25V710000 (Electrical System); 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.
2025 Jeep Wrangler · Electrical System · filed with NHTSA Jul 17, 2026 · ODI 11751198
In depth: 2023 Chrysler Pacifica electrical problems → · 2024 Jeep Wrangler electrical problems → · 2023 Jeep Wrangler 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 group703 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 |
|---|---|---|---|
| S2608000041 | Service bulletin | Oct 22, 2026 | MIL-On After a Powertrain Control Module (PCM) Replacement |
| 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… |
| 08-386-26 | Service bulletin | Oct 20, 2026 | Flash: Trailer Tow Module (TTM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer Turn Lamp' message is displayed in… |
| 08-385-26 | Service bulletin | Oct 20, 2026 | Flash: Trailer Tow Module (TTM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer Turn Lamp' message is displayed in… |
| 08-298-26 | Service bulletin | Oct 17, 2026 | Instrument Panel Cluster (IPC) Blank XZ1 Warranty Extension Customers may experience the following: SYMPTOM: ● **A blank electronic vehicle… |
| S2608000039 | Service bulletin | Oct 16, 2026 | Trailer Reverse Steering Control Radio Soft Button Blinks Even Without a User-Initiated Calibration |
| 08-280-26 | Service bulletin | Oct 16, 2026 | Flash: Integrated Trailer Control Module (ITCM) Update Customers may experience the following: SYMPTOM: ● "Check Trailer Turn Lamp" message… |
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 Chrysler, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Stellantis 9100389 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 9100389 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 9100389 cover?
The manufacturer filed it against 19 model years across 3 brands (Jeep, Ram and Chrysler): 2025 Chrysler Pacifica, 2024 Chrysler Pacifica, 2023 Chrysler Pacifica, 2025 Chrysler Voyager, 2024 Chrysler Voyager, 2023 Chrysler Voyager and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.