Ram bulletin 9100607
What it says"MODULE Transfer Case Control If DTC C2112 is set in the DTCM module refer to complete diagnostics in Service Library, it has been seen this is primarily caused by a wiring issue. NHTSA’s full summary ↓
Ram filed this with NHTSA as a service bulletin dated Jun 14, 2025, received Jun 18, 2025, about the electrical system. It names 4 model years (2024). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communication"MODULE Transfer Case Control If DTC C2112 is set in the DTCM module refer to complete diagnostics in Service Library, it has been seen this is primarily caused by a wiring issue. Please inspect all wiring, wiring connections and drive the vehicle in the conditions that set this fault according to the environmental data. Conduct the following test drive to recreate the condition to get the DTC to go active, - Shift from 2WD to 4HI (drive > 2 mins) - Shift from 4HI to 4LO (drive > 2 mins) - Shift from 4LO to 4HI (drive > 2 mins) - Shift from 4HI to 2WD (drive > 2 mins) Note: Inspect and confirm no corrosion present at the FAD connector If DTCM is still suspected to be at fault proceed with repair."
Trouble codes it names: C2112
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 9100607 | Service bulletin | Jun 14, 2025 | 11019606 | PDF, 54 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 themAlso filed against model years this site has no page for: 2024 Ram 4500; 2024 Ram 5500.
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 2 model years this bulletin names have filed 104 complaints with NHTSA since 2015. 24 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 01/21/2026 there was a warning light that came on stating accelerator control sensor, the next morning the truck started stalling, and continued stalling multiple times. I attempted to get the vehicle to the service center.
2024 Ram 3500 · Electrical System · filed with NHTSA Feb 2, 2026 · ODI 11715041
Front parking sensors always being disabled due to something. Keeps saying wipe sensors. Comes no matter what speeds am driving and causes other codes and fault in truck
2024 Ram 2500 · Electrical System · filed with NHTSA Jul 23, 2025 · ODI 11675662
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 group246 other manufacturer communications filed against these Ram models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Ram list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 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… |
| S2608000039 | Service bulletin | Oct 16, 2026 | Trailer Reverse Steering Control Radio Soft Button Blinks Even Without a User-Initiated Calibration |
| 9100945 | Service bulletin | Oct 15, 2026 | FUSE BLOCK - PWR DISTRIBUTION A/C Blowing hot air or not working. A/C relay clutch not operating, dealers are unnecessary replacing PDCs. Ba… |
| 9100938 | Service bulletin | Oct 15, 2026 | FUSE BLOCK - PWR DISTRIBUTION |
| 08-375-26 | Service bulletin | Oct 14, 2026 | Tow Nav Menu Option Unavailable - UBQ/UBW Customers may comment on the following: SYMPTOM: ● Tow Nav menu option is grayed out and cannot be… |
| 9100926 | Service bulletin | Sep 30, 2026 | WIRELESS CHARGER Welcome GREEN LED not turning ON after multiple IGN ON/OFF without sleep cycle and no phone on the charging pads. Part numb… |
| 08-339-26 | Service bulletin | Sep 24, 2026 | Max Tow Right and Left Rear Wheel Speed Sensors Inoperable Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the… |
| 25-004-26 | Service bulletin | Sep 23, 2026 | Exhaust Gas Temperature (EGT) Sensor Water Intrusion ’s VIN MUST be listed in VIP or your RSU VIN list. NOTE: This bulletin applies to ● The… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ram, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ram 9100607 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 9100607 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 9100607 cover?
The manufacturer filed it against 4 model years: 2024 Ram 2500, 2024 Ram 3500, 2024 Ram 4500, 2024 Ram 5500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.