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Manufacturer communication · Service bulletin

Ram bulletin 9100945

What it saysPWR DISTRIBUTION A/C Blowing hot air or not working. NHTSA’s full summary ↓

Ram filed this with NHTSA as a service bulletin dated Oct 15, 2026, received Oct 22, 2026, about the electrical system. It names 4 model years (2024–2027). 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

FUSE BLOCK - PWR DISTRIBUTION A/C Blowing hot air or not working. A/C relay clutch not operating, dealers are unnecessary replacing PDCs. Battery disconnection is required to reset PCM. Please follow SOL S2624000004.

Kind Service bulletin Manufacturer date Oct 15, 2026 Received by NHTSA Oct 22, 2026 Components Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
9100945Service bulletinOct 15, 202611038665PDF

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

Also filed against model years this site has no page for: 2027 Ram 2500.

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 Ram bulletins for the 2500

A weekly email, sent only in a week when Ram 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 database

Owners of the 3 model years this bulletin names have filed 154 complaints with NHTSA since 2015. 63 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.

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

While driving in 4x4 on a snow covered road, the truck simultaneously got a check engine light as well as several other error messages to include service required to the emergency braking and the trailer brake controller.

2025 Ram 2500 · Electrical System · filed with NHTSA Jan 22, 2026 · ODI 11712817

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 group

202 other manufacturer communications filed against the Ram 2500 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Ram list.

NumberKindDatedNHTSA’s summary
08-377-26Service bulletinOct 17, 2026Tire Pressure Monitoring System (TPMS) Red XX Displayed and/or Warning Indicator Illuminated Customers must experience a Malfunction Indicat…
S2608000039Service bulletinOct 16, 2026Trailer Reverse Steering Control Radio Soft Button Blinks Even Without a User-Initiated Calibration
9100938Service bulletinOct 15, 2026FUSE BLOCK - PWR DISTRIBUTION
08-375-26Service bulletinOct 14, 2026Tow Nav Menu Option Unavailable - UBQ/UBW Customers may comment on the following: SYMPTOM: ● Tow Nav menu option is grayed out and cannot be…
9100926Service bulletinSep 30, 2026WIRELESS CHARGER Welcome GREEN LED not turning ON after multiple IGN ON/OFF without sleep cycle and no phone on the charging pads. Part numb…
08-331-26Service bulletinSep 11, 2026Flash: Vehicle System Interface Module (VSIM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehic…
OTHERDOC_176OtherSep 8, 2026Radio Over The Air Update to U43.17 R1H Software Version (FOTA) Customers may experience one or more of the following:- Navigation Stabilit…
08-315-26Service bulletinAug 20, 2026Flash: 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 Ram, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Ram 9100945 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 9100945 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 9100945 cover?

The manufacturer filed it against 4 model years: 2026 Ram 2500, 2025 Ram 2500, 2024 Ram 2500, 2027 Ram 2500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.