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HomeBulletinsRam 25-004-26
Manufacturer communication · Service bulletin

Ram bulletin 25-004-26

Ram filed this with NHTSA as a service bulletin dated Sep 10, 2026, received Sep 17, 2026, about the engine. It names 8 model years (2025–2026). 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.

What the bulletin says

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

Exhaust Gas Temperature (EGT) Sensor Water Intrusion CUSTOMER Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): â—� P2482-00 - Exhaust Gas Temperature Sensor Circuit High - Bank 1 Sensor 5. Customers may also comment on the following: â—� Soot load is too high and power derate occurs due to regen being disabled. This bulletin involves replacing the EGT sensors.

Kind Service bulletin Manufacturer date Sep 10, 2026 Received by NHTSA Sep 17, 2026 Components Engine, Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
25-004-26Service bulletinSep 10, 202611037339not yet checked

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.

Common questions

Source: NHTSA, 49 CFR 579.5

Is Ram 25-004-26 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 25-004-26 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.

Which vehicles does 25-004-26 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.