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Manufacturer communication · Service bulletin

Ram bulletin 0824423

What it saysRadio R255.45.06 USB Software Update The customer may experience one or more of the following: No sound heard when Assist & SOS Call is established. NHTSA’s full summary ↓

Ram filed this with NHTSA as a service bulletin dated Nov 15, 2023, received Jan 16, 2024, about the back over prevention. It names 5 model years (2023). 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 R255.45.06 USB Software Update The customer may experience one or more of the following: No sound heard when Assist & SOS Call is established. Balance/Fade does not stay on when setup by one press. Wireless Phone interface freezes after User accepts incoming call when in a conference call. System switches to Wireless after key cycle, profile change, theme change, or theme mode change. After overnight sleep cycle defrost vent and dash vent are cut off due to duplicate front defrost. Surround sound image loads incorrectly when activating with Android Auto?. Radio plays different SXM? station than user selected. After a software update, previously added widgets to Shortcuts show up as "Couldnt add widget". SXM? presets greyed out, non-functional and audio intermittently fades in and out. Switch between the Cargo Camera screen and the AUX camera screen while switching between Night/Day modes, camera image may not be displayed (Rearview camera functions normally). Deleting songs from Artist & Song Notifications, then Sports announcement displayed and 9X9 to cancel freezes screen (Rearview camera functions normally). After a long sleep cycle, the left menu bar showing SXM? station categories (i.e. For You, Music, Sports, News, Presets) does not display all categories. When playing SXM?, after switching to a profile with a different Theme Mode, starting Bus Sleep cycle causes Presets Shown to change from 20 to 15 (Rearview camera functions normally). When call received from another vehicle, the voice of the receiving end is echoed back, the callers vehicle has no echo issue. No response from Browse hard key when SXM? source is selected. Screen graphics/Theme - Shortcut widgets show up as "Loading", even after full sleep cycle. Android Auto? - Call duration displayed on status bar notification area is different than the actual duration. Widget view and Android Auto? screen are showing correct. Back Camera Icon is grayed out and its not accessible from

Kind Service bulletin Manufacturer date Nov 15, 2023 Received by NHTSA Jan 16, 2024 Components Back Over Prevention, Electrical System, Parking Brake

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
0824423Service bulletinNov 15, 202310248928not 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.

Model years it names

Source: as the manufacturer filed them

Also filed against model years this site has no page for: 2023 Ram 4500; 2023 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 267 complaints with NHTSA since 2015. 81 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.

The contact owns a 2023 Ram 3500. The contact stated that while driving or while the vehicle was parked, the air bag warning light was intermittently illuminated. Additionally, the check engine warning light was illuminated, and the seat belt warning light was intermittently illuminated while the seat belt was securely buckled.

2023 Ram 3500 · Electrical System · filed with NHTSA Jun 25, 2026

There is a loud humming/tumbling sound when decelerating at lower roms. It is very loud, obnoxious, and distracting. It was so loud that I couldn’t hear an emergency vehicle coming up behind me to get over. I have found 100’s of complaints on forums with the same issue with the 5th gen rams.

2023 Ram 1500 · Electrical System · filed with NHTSA Oct 8, 2023

The contact owns a 2023 Ram 2500. The contact stated while driving approximately 74 MPH, the EGR valve de-energized seizing the turbo, causing the vehicle do decelerate to 30 MPH in less than a quarter mile. The check engine warning light was illuminated.

2023 Ram 2500 · Electrical System · filed with NHTSA Jul 11, 2024

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 back over prevention

Source: same model, same component group

18 other manufacturer communications filed against these Ram models under the same component group (back over prevention), newest first. The eight newest are listed; the rest are on the Ram list.

NumberKindDatedNHTSA’s summary
114283Warranty extensionAug 26, 2026***Recall Completion Prior to Sale of Vehicle***
114282Warranty extensionAug 26, 2026***Recall Completion Prior to Sale of Vehicle***
S2608000030Service bulletinJul 1, 2026Park Assist Unavailable Message Displayed in The Cluster
9100480Service bulletinJan 15, 2025Park Sensor Vehicles can have a warning in the cluster indicating that the park sensors are inoperative and to wipe the park sensors. If the…
9100479Service bulletinJan 14, 2025Park Sensor Vehicles can have a warning in the cluster indicating that the park sensors are inoperative and to wipe the park sensors. If the…
S2523000001Service bulletinJan 6, 2025C00C4-97 And Or C00C5-97 - Rear Radar Module Component Or System Operation Obstructed Or Blocked.
S2423000049Service bulletinNov 15, 2024Blind Spot Warning Displayed On Instrument Cluster. Mid Range Radar Left And Or Right Setting C00C4-76 C00C5-76 Rear Radar Module Wrong Moun…
9100414Service bulletinSep 25, 2024Parking assist Vehicles can have a warning in the cluster indicating that the park sensors are inoperative and to wipe the park sensors. If…

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 0824423 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 0824423 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 0824423 cover?

The manufacturer filed it against 5 model years: 2023 Ram 1500, 2023 Ram 2500, 2023 Ram 3500, 2023 Ram 4500, 2023 Ram 5500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.