Ram bulletin 25-006-24
What it says"Diesel Exhaust Fluid (DEF) Fluid Freezing Warranty Extension XR1 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC)… NHTSA’s full summary ↓
Ram filed this with NHTSA as a service bulletin dated Oct 1, 2024, received Oct 8, 2024, about the engine. It names 16 model years (2019–2022). 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"Diesel Exhaust Fluid (DEF) Fluid Freezing Warranty Extension XR1 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P203E-00 - Reductant Level Sensor 1 Circuit Intermittent-Erratic. Customers may also experience one or more of the following: ● Repeated freeze/thaw cycles of the urea tank to cause solid DEF crystals to form and settle on the focus tube, blocking the level sensor signal. ● Rapid temperature swings from below freezing to above freezing causing an incomplete thaw of the DEF tank. When the vehicle is powered on, the diagnostic is enabled due to thawed DEF at the tank bottom surface, but the fluid in the center is still partially frozen. ● Not following the proper DEF fill procedure and overfilling the tank. This bulletin involves replacing the urea delivery module and possibly updating the Dosing Control Unit (DCU) software"
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 25-006-24 | Service bulletin | Oct 1, 2024 | 11008746 | PDF, 168 KB |
What the document itself lists
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 68035704AC | Fluid, Diesel Exhaust One Gallon | — | eBay Motors → |
Read by machine from the document NHTSA serves (4 pages), read Sep 30, 2026. A part number is shown only where it matches Ram’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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: 2019 Ram 4500; 2020 Ram 4500; 2021 Ram 4500; 2022 Ram 4500; 2019 Ram 5500; 2020 Ram 5500; 2021 Ram 5500; 2022 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 8 model years this bulletin names have filed 1,153 complaints with NHTSA since 2015. 227 of them name Engine — 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 2019 Ram 3500, the 17 owners who gave an odometer reading for Engine reported it at a median of 75,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
For thanksgiving I was driving home from a trip to california about 800 miles away from home, on a merging lane I stepped on the gas to clear lane for a emerging semi trailer I was traveling around 65 MPH as I did that I got a warning message on my dashboard to service exhaust system then lost all power from my vehicle from 65 to 35 on…
2019 Ram 3500 · Engine · filed with NHTSA Jan 7, 2021 · ODI 11387018
Truck died in traffic. Lost all power steering, brakes, etc. almost caused a multiple vehicle accident, and left me stranded in the middle of traffic until I could get assistance to move. There was no warning or notice before the truck just quit working. A warning light came on after the truck died and stated "exhaust system failure.
2020 Ram 2500 · Engine · filed with NHTSA Mar 8, 2021 · ODI 11399710
The contact owns a 2022 Ram 2500. The contact stated that while attempting to start the vehicle, there was a long crank time before the vehicle started. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the ambient temperature sensor needed to be replaced.
2022 Ram 2500 · Engine · filed with NHTSA Dec 19, 2022 · ODI 11498098
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 engine
Source: same model, same component group57 other manufacturer communications filed against these Ram models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Ram list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 09-025-26 | Service bulletin | Oct 13, 2026 | Starter Terminal Nut Under Torqued Customers may comment on one or more of the following: SYMPTOM: ● Starter clicking but not starting. ● No… |
| 07-006-26 | Service bulletin | Sep 1, 2026 | Engine Overheat Customers may comment on the following: SYMPTOM: ● Vehicle overheating. ● Temperature gauge is reading hot. ● Overheat symbo… |
| 114255 | Service bulletin | Aug 26, 2026 | RADIATOR - ENGINE COOLING |
| 114254 | Service bulletin | Aug 26, 2026 | RADIATOR - ENGINE COOLING |
| 9100882 | Service bulletin | Aug 17, 2026 | PULLEY Fan If replacing 68209745AA, also replace 68723388AA, 05086958AB, and 68000833AD. Retain bolts, mark each with its original location… |
| 18-038-26 REV. A | Service bulletin | Jul 29, 2026 | Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exh… |
| 113754 | Service bulletin | Jul 29, 2026 | SENSOR - EXHAUST TEMPERATURE |
| 113293 | Service bulletin | Jul 8, 2026 | INJECTOR - FUEL |
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 25-006-24 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 25-006-24 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 25-006-24 cover?
The manufacturer filed it against 16 model years: 2022 Ram 2500, 2021 Ram 2500, 2020 Ram 2500, 2019 Ram 2500, 2022 Ram 3500, 2021 Ram 3500 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.