Ram bulletin 1800624
What it saysFlash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. NHTSA’s full summary ↓
Ram filed this with NHTSA as a service bulletin dated Jan 25, 2024, received Mar 18, 2024, about the exterior lighting. It names 1 model year (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 communicationFlash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0301 - Cylinder 1 Misfire. ? P0302 - Cylinder 2 Misfire. ? P0303 - Cylinder 3 Misfire. ? P0304 - Cylinder 4 Misfire. ? P0305 - Cylinder 5 Misfire. ? P0306 - Cylinder 6 Misfire. ? P0307 - Cylinder 7 Misfire. ? P0308 - Cylinder 8 Misfire. Customers may also experience the following: ? An engine misfire This bulletin involves reprogramming the PCM with the latest available software.
Trouble codes it names: P0301 P0302 P0303 P0304
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 1800624 | Service bulletin | Jan 25, 2024 | 10251871 | not 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 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 201 complaints with NHTSA since 2015. 68 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.
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
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 exterior lighting
Source: same model, same component group6 other manufacturer communications filed against the Ram 1500 under the same component group (exterior lighting), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 2300424 | Service bulletin | Jan 17, 2024 | Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with… |
| 9100241 | Service bulletin | Sep 28, 2023 | FRT RT/LT - LAMP ASSY For moisture / water found in headlamp please review TSB 23-029-23 Headlamp Condensation clearing procedure. If the m… |
| 91745 | Service bulletin | Jun 21, 2023 | FCA Caribbean Warranty Bulletin ID-23-13 (XG1) Center High Mounted Stop Lamp (CHMSL) - Select 2019 - 2021 RAM 1500 Pickup (DT) |
| 91742 | Service bulletin | Jun 21, 2023 | Warranty Bulletin D-23-11 (XG1) Center High Mounted Stop Lamp (CHMSL) - Select 2019 - 2021 RAM 1500 Pickup (DT) |
| 0812123 | Service bulletin | May 6, 2023 | Technician findings after the repair, the vehicle has one or multiple conditions listed above setting one or more of the Diagnostic Trouble… |
| 0810823 | Service bulletin | Apr 26, 2023 | Pickup Box Lighting Is Missing Customers may comment one or more of the following: ? Lack of lighting in the pickup box. ? Pickup box bed m… |
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 1800624 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 1800624 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 1800624 cover?
The manufacturer filed it against 1 model year: 2023 Ram 1500. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.