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Federal filingsHome›Bulletins›Ram› OTHERDOC_147
Manufacturer communication · Over-the-air update

Ram over-the-air update OTHERDOC_147

What it saysPowertrain Contol Module Over The Air Update to V2B (Diesel Only) Software Version (FOTA) 2025 - 2026 (DJ) RAM 2500 Pickup 2025 - 2026 (D2) RAM 3500 Pickup 2025 - 2026 (DD) RAM 3500 Cab Chassis 2025 - 2026 (DF) RAM 3500… NHTSA’s full summary ↓

Ram filed this with NHTSA as an over-the-air update dated Sep 5, 2025, received Sep 10, 2025, about the electrical system. It names 8 model years (2025–2026). An over-the-air update is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

Powertrain Contol Module Over The Air Update to V2B (Diesel Only) Software Version (FOTA) 2025 - 2026 (DJ) RAM 2500 Pickup 2025 - 2026 (D2) RAM 3500 Pickup 2025 - 2026 (DD) RAM 3500 Cab Chassis 2025 - 2026 (DF) RAM 3500 10K Lb. Cab Chassis2025 - 2026 (DP) RAM 4500/5500 Cab Chassis Customers may experience one or more of the following: - Power Inverter (110V connection) drops out when shifting from P to D - DEF (Diesel Exhaust Fluid) level gauge inaccuracy - Poor cold start performance - Instrument Panel Cluste MIL (Malfunction Indicator Light) ON; Possible P-codes: P0087/P2540/P2543 Fuel Pressure P214D/P242B SCR Temperature P24DA PM Sensor P20EE SCR Efficiency P226C/P2281 Mass Charge Flow P229F System Outlet NOx Sensor P0100 MAF Sensor P203F DEF Level P0423 DOC Efficiency

Trouble codes it names: P0087 P20EE P214D P226C P242B P24DA P2540 P2543

Kind Over-the-air update Manufacturer date Sep 5, 2025 Received by NHTSA Sep 10, 2025 Components Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
OTHERDOC_147Over-the-air updateSep 5, 202511023088PDF

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: 2025 Ram 4500; 2026 Ram 4500; 2025 Ram 5500; 2026 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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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.

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What owners reported

Source: NHTSA complaint database

Owners of the 4 model years this bulletin names have filed 169 complaints with NHTSA since 2015. 100 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

The contact owns a 2025 Ram 3500. The contact received notification of NHTSA Campaign Number: 25V826000 (ELECTRICAL SYSTEM); and the vehicle was taken to the dealer, where the instrument panel software update was completed; however, the instrument panel became inoperable after the update was completed.

2025 Ram 3500 · Electrical System · filed with NHTSA Apr 28, 2026 · ODI 11734265

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

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

246 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.

NumberKindDatedNHTSA’s summary
08-385-26Service bulletinOct 20, 2026Flash: Trailer Tow Module (TTM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer Turn Lamp' message is displayed in…
S2608000039Service bulletinOct 16, 2026Trailer Reverse Steering Control Radio Soft Button Blinks Even Without a User-Initiated Calibration
9100945Service bulletinOct 15, 2026FUSE BLOCK - PWR DISTRIBUTION A/C Blowing hot air or not working. A/C relay clutch not operating, dealers are unnecessary replacing PDCs. Ba…
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…
08-339-26Service bulletinSep 24, 2026Max Tow Right and Left Rear Wheel Speed Sensors Inoperable Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the…
25-004-26Service bulletinSep 23, 2026Exhaust 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.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Ram OTHERDOC_147 a recall?

No. A over-the-air update 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 OTHERDOC_147 repair free?

A over-the-air update is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.

Which vehicles does OTHERDOC_147 cover?

The manufacturer filed it against 8 model years: 2026 Ram 2500, 2025 Ram 2500, 2026 Ram 3500, 2025 Ram 3500, 2025 Ram 4500, 2026 Ram 4500 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.