Ram bulletin 08-195-26
What it saysDoor Control Module (DCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): B2577-00 - Window Not Calibrated… NHTSA’s full summary ↓
Ram filed this with NHTSA as a service bulletin dated Jun 30, 2026, received May 6, 2026, about the structure — 3 documents under this number: 08-195-26 REV. B, 08-195-26 REV. A and 1 more. It names 1 model year (2025). 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 communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
Door Control Module (DCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● B2577-00 - Window Not Calibrated / Lost Calibration. Customers may experience one or more of the following: ● Power windows are inoperative and will not respond to switch inputs. ● Driver and passenger window auto up/down functions inoperative. *This bulletin involves inspecting and possibly reprogramming the DDM and PDM with the latest available software.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 08-195-26 REV. B | Service bulletin | Jun 30, 2026 | 11034894 | |
| 08-195-26 REV. A | Service bulletin | May 30, 2026 | 11033338 | |
| 08-195-26 | Service bulletin | May 1, 2026 | 11032320 | not found |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 18-19-14-9W | Module, Drivers Door (DDM) and Passenger Door (PDM) - Inspect | 0.2 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 29, 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the body for the 2025 1500 →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Model years it names
Source: as the manufacturer filed themA 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 1 model year this bulletin names have filed 356 complaints with NHTSA since 2015. 184 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 the 2025 Ram 1500, the 24 owners who gave an odometer reading for Electrical System reported it at a median of 6,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Brand new 2025 ram 1500 is out of alignment at 800 miles. It pulls to the right. On highway, it almost turns itself to the other lane. Major disaster maker
2025 Ram 1500 · Electrical System · filed with NHTSA Feb 7, 2025
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 structure
Source: same model, same component group66 other manufacturer communications filed against the Ram 1500 under the same component group (structure), newest first. The eight newest are listed; the rest are on the Ram list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 23-048-26 | Service bulletin | Sep 26, 2026 | Not applicable to vehicles built for US market. Multi-function Tailgate Requires High Closing Effort Customers may comment on the following:… |
| 9100892 | Service bulletin | Sep 2, 2026 | Switch - Tailgate Handle Prior to replacing the Tailgate Handle Switch, please review MasterTech Article - Tailgate Handle Inoperative. |
| 9100886 | Service bulletin | Aug 28, 2026 | Sunroof Assy Sunroof glass and/or sunshade cannot open/close (inoperative). 1. Please follow the service procedure: 08-Electrical/8N - Power… |
| S2608000033 | Service bulletin | Jul 17, 2026 | Cluster Message “To Operate Tailgate Shift to Park” Vehicle is In Park |
| 08-187-26 | Service bulletin | Jun 30, 2026 | Door Control Module (DCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set… |
| 113069 | Service bulletin | Jun 29, 2026 | SWITCH – HEADLAMP |
| S2208000045 REV. D | Service bulletin | Jun 26, 2026 | Backup Camera Poor Image Quality Inspection |
| 9100844 | Service bulletin | Jun 17, 2026 | If the Rambox painted lid applique is broken, loose, or missing, please return entire lid assembly for analysis |
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 08-195-26 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 08-195-26 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 08-195-26 cover?
The manufacturer filed it against 1 model year: 2025 Ram 1500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built on or before 15 Sep 2025 — the build date is on the certification label in the driver’s door jamb.