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Federal filingsHome›Bulletins›Ram› 0815823
Manufacturer communication · Service bulletin

Ram bulletin 0815823

What it saysRadio Over The Air Update to T25.48 Software Version Customers may experience one or more of the following: ? NHTSA’s full summary ↓

Ram filed this with NHTSA as a service bulletin dated Nov 29, 2023, received Aug 21, 2023, about the electrical system — 2 documents under this number. It names 5 model years (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

Radio Over The Air Update to T25.48 Software Version Customers may experience one or more of the following: ? Unable to exit FamCam. ? Electric vehicle pages inoperable. ? Ambient Light Setting inoperable. ? Radio reset (Rear view camera functions normally). ? Voice Recognition (VR) inoperable. ? Scheduled cabin cooling inoperable. ? Unable to exit electric vehicle page. ? Audio sources inoperable. ? Wireless CarPlay® inoperable. ? Setting preferences not saved on correct profile. ? Audio loss. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from S26.17 to T25.48. NOTE: The National campaign for this FOTA update launched July 17, 2023.

Kind Service bulletin Manufacturer date Nov 29, 2023 Received by NHTSA Aug 21, 2023 Components Electrical System, Equipment First dated Jun 30, 2023

Documents filed under this number

DocumentKindDatedNHTSA idAt NHTSA
0815823Service bulletinNov 29, 202310248958not found
0815823Service bulletinJun 30, 202310241140not found

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 radio/tape deck/cd etc. for the 2022 1500 →

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Model years it names

Source: as the manufacturer filed them

Also filed against model years this site has no page for: 2022 Ram 4500; 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 database

Owners of the 3 model years this bulletin names have filed 1,011 complaints with NHTSA since 2015. 286 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 2022 Ram 1500, the 18 owners who gave an odometer reading for Electrical System reported it at a median of 41,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.

I was notified of the Particulate Matter (PM) Sensor not being installed in the exhaust aftertreatment system of my vehicle on a post delivery survey I received. The dealership's service department has no idea about this sensor not being installed by the factory, and the response from the letter stated there would be a recall soon to…

2022 Ram 2500 · Electrical System · filed with NHTSA Feb 17, 2023 · ODI 11507743

The contact owns a 2022 Ram 3500. The contact stated that the vehicle was purchased brand new. The contact stated while driving at various speeds after the dealer had delivered the vehicle to him, he felt a significant buzzing sensation.

2022 Ram 3500 · Electrical System · filed with NHTSA Feb 14, 2023 · ODI 11507258

Radio will randomly switch sources and volume and speakers. This is very distracting and could cause an accident

2022 Ram 1500 · Electrical System · filed with NHTSA May 28, 2022 · ODI 11466493

In depth: 2022 Ram 1500 electrical problems → · 2022 Ram 2500 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

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

NumberKindDatedNHTSA’s summary
S2608000041Service bulletinOct 22, 2026MIL-On After a Powertrain Control Module (PCM) Replacement
S2608000040Service bulletinOct 21, 2026The Customer States There Is a Blinking Odometer. Firmware Over-The-Air (FOTA) Fails With Message To Visit The Dealer.
08-388-26Service bulletinOct 20, 2026R1H Radio U43.17 Software Update - Dealer Option Customers may experience one or more of the following: SYMPTOM: ● Screen freeze or radio re…
08-386-26Service bulletinOct 20, 2026Flash: Trailer Tow Module (TTM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer Turn Lamp' message is displayed in…
08-385-26Service bulletinOct 20, 2026Flash: Trailer Tow Module (TTM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer Turn Lamp' message is displayed in…
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…
9100945Service bulletinOct 15, 2026FUSE BLOCK - PWR DISTRIBUTION A/C Blowing hot air or not working. A/C relay clutch not operating, dealers are unnecessary replacing PDCs. Ba…

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 0815823 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 0815823 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 0815823 cover?

The manufacturer filed it against 5 model years: 2022 Ram 1500, 2022 Ram 2500, 2022 Ram 3500, 2022 Ram 4500, 2022 Ram 5500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.