Ram bulletin 08-315-26
What it saysFlash: Integrated Trailer Control Module (ITCM) Update Customers may experience the following: SYMPTOM: 'Check Trailer Turn Lamp' message in the Instrument Panel Cluster (IPC) with no trailer connected. NHTSA’s full summary ↓
Ram filed this with NHTSA as a service bulletin dated Aug 20, 2026, received Aug 26, 2026, about the structure. It names 4 model years (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.
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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.
Flash: Integrated Trailer Control Module (ITCM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer Turn Lamp' message in the Instrument Panel Cluster (IPC) with no trailer connected. This bulletin involves inspecting and possibly reprogramming the ITCM with the latest software.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 08-315-26 | Service bulletin | Aug 20, 2026 | 11036352 |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 18-19-09-96 | Module, Integrated Trailer Control (ITCM) - Inspect Software Level | 0.2 hrs |
| 18-19-09-97 | Module, Integrated Trailer Control (ITCM) - Inspect and Reprogram | 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.
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Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2026 Ram 4500; 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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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 53 complaints with NHTSA since 2015. 28 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
The contact owns a 2026 Ram 3500. The contact stated that while driving at an undisclosed speed, several unknown warning lights were illuminated. The message that the trailer was not connected was displayed.
2026 Ram 3500 · Electrical System · filed with NHTSA Aug 20, 2026
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 group27 other manufacturer communications filed against these Ram models 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 |
|---|---|---|---|
| 9100901 | Service bulletin | Sep 8, 2026 | Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040. |
| 9100892 | Service bulletin | Sep 2, 2026 | Switch - Tailgate Handle Prior to replacing the Tailgate Handle Switch, please review MasterTech Article - Tailgate Handle Inoperative. |
| 9100803 | Service bulletin | Jul 6, 2026 | Front Fog Lamp RT 1) If the lamp contains moisture, do not replace it immediately. Turn the fog lamp on for one hour and inspect it afterwar… |
| 113069 | Service bulletin | Jun 29, 2026 | SWITCH – HEADLAMP |
| S2208000045 REV. D | Service bulletin | Jun 26, 2026 | Backup Camera Poor Image Quality Inspection |
| S1623000028 REV. I | Service bulletin | Jun 12, 2026 | Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position. |
| S2623000040 | Service bulletin | Jun 5, 2026 | Passive Entry Exterior Door Handle Inoperative When Touched To Lock And Or Unlock. |
| 9100831 | Service bulletin | Jun 4, 2026 | For Dealer awareness, HD truck, eliminate 1 of 2 M8 Joints for Sidestep bracket to Body Attachment, Bolt and rivet (06102165AA, 06511062AA)… |
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 08-315-26 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 08-315-26 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 08-315-26 cover?
The manufacturer filed it against 4 model years: 2026 Ram 2500, 2026 Ram 3500, 2026 Ram 4500, 2026 Ram 5500. 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 1 Nov 2025 — the build date is on the certification label in the driver’s door jamb.