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Federal filingsHome›Bulletins›Ram› 08-376-26
Manufacturer communication · Service bulletin

Ram bulletin 08-376-26

What it saysBlindspot Alert Unavailable Service Required Warning Message Customers must experience on one or more of the following: SYMPTOM: “Blindspot Alert Unavailable Service Required” pop-up message or relevant Blindspot… NHTSA’s full summary ↓

Ram filed this with NHTSA as a service bulletin dated Oct 15, 2026, received Oct 22, 2026, about the electrical system. It names 2 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.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication
Built on or before 25 Nov 2025 “Built on or before November 25, 2025”

What 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.

Blindspot Alert Unavailable Service Required Warning Message Customers must experience on one or more of the following: SYMPTOM: ● “Blindspot Alert Unavailable Service Required” pop-up message or relevant Blindspot warning messages display on the Instrument Panel Cluster (IPC). ● Driver and passenger mirror collision detection lights stay on. ● Advanced Driver Assistance Systems (ADAS) feature are disabled. Technicians must find one or more of the following Diagnostic Trouble Codes (DTCs): ● U015D-00 - Lost Communication With Automated Driving System Control Module "B". ● U045E-00 - Invalid Data Received From Automated Driving System Control Module "B". ● U015C-00 - Lost Communication With Automated Driving System Control Module "A". ● U02BC-00 - Lost Communication With Localization And Mapping Module. NOTE: These DTCs will not illuminate the Malfunction Indicator Lamp (MIL). This bulletin involves repairs to the CADM and CADM2 and wiring harnesses.

Kind Service bulletin Manufacturer date Oct 15, 2026 Received by NHTSA Oct 22, 2026 Components Electrical System

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
08-376-26Service bulletinOct 15, 202611038632PDF

What the document itself lists

Parts the bulletin names

Part numberDescriptionQtyFind it
68772224AACable, Ethernet2eBay Motors →
68772225AACable, Ethernet—eBay Motors →
06506600AAScrew, Pan Head—eBay Motors →
06508760AAScrew and Washer, Hex—eBay Motors →
68601445AA——

Labour operations and the time the manufacturer allows

OperationDescriptionTime
08-90-75-9HCable(s), Central ADAS Decision Module (CADM) Communication - Replace1.1 hrs
08-90-75-68Rear Subwoofer Equipped0.1 hrs

Read by machine from the document NHTSA serves (10 pages), read Oct 24, 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.

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.

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

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 database

Owners of the 2 model years this bulletin names have filed 468 complaints with NHTSA since 2015. 242 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 25 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.

While driving the driver instrument cluster screen went black. After approximately 10 seconds the theft alarm arm red light went red. Then the TPMS tire warning light lit. Then the instrument cluster screen went back to normal operation

2026 Ram 1500 · Electrical System · filed with NHTSA Mar 7, 2026 · ODI 11722680

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 · ODI 11641291

In depth: 2026 Ram 1500 electrical problems → · 2025 Ram 1500 electrical problems →

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

302 other manufacturer communications filed against the Ram 1500 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Ram list.

NumberKindDatedNHTSA’s summary
S2608000039Service bulletinOct 16, 2026Trailer Reverse Steering Control Radio Soft Button Blinks Even Without a User-Initiated Calibration
08-280-26Service bulletinOct 16, 2026Flash: Integrated Trailer Control Module (ITCM) Update Customers may experience the following: SYMPTOM: ● "Check Trailer Turn Lamp" message…
9100933 Rev 1Service bulletinOct 14, 2026FUSE BLOCK UNDERHOOD - PWR DIS A/C Blowing hot air or not working. A/C relay clutch not operating, dealers unnecessary replacing PDCs. Batte…
9100647Service bulletinOct 14, 202668488364AC: FUSE BLOCK UNDERHO 1) False fails on PCR, DBSM and PDCs Stuck Closed or open diagnostics, DTC P2AF5 or P2AF6, leading to NTF and…
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…
08-372-26Service bulletinOct 9, 2026R1H U43.17 Software Update - FOTA Customers may experience one or more of the following: SYMPTOM: ● Screen Freeze or Radio Reset. ● Projecti…
08-369-26Service bulletinOct 8, 2026Digital Key Control Module (DKCM) Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhi…
08-139-26 REV. BService bulletinOct 8, 2026Flash: Radio Frequency Hub Module (RFHM) Updates Customer may experience the following: SYMPTOM: ● **Excessive Ignition Off Draw (IOD) on 12…

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 08-376-26 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 08-376-26 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. Every Stellantis warranty extension on file lists the ones Stellantis has filed.

Which vehicles does 08-376-26 cover?

The manufacturer filed it against 2 model years: 2026 Ram 1500, 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 25 Nov 2025 — the build date is on the certification label in the driver’s door jamb.