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Manufacturer communication · Service bulletin

Ram bulletin S1623000028 Rev.

Ram filed this with NHTSA as a service bulletin dated Jun 12, 2026, received Apr 6, 2020, about the structure — 9 documents under this number: S1623000028 Rev. K, S1623000028 REV. J, S1623000028 REV. I, S1623000028 REV. H and more. It names 66 model years (2016–2026). 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.

What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.

Kind Service bulletin Manufacturer date Jun 12, 2026 Received by NHTSA Apr 6, 2020 Components Structure, Electrical System, Visibility, Vehicle Speed Control, Back Over Prevention, Parking Brake First dated Feb 12, 2020

Documents filed under this number

DocumentKindDatedNHTSA idAt NHTSA
S1623000028 Rev. KService bulletinJun 12, 202611033975not yet checked
S1623000028 REV. JService bulletinJun 5, 202611033897not yet checked
S1623000028 REV. IService bulletinMay 29, 202611033308not yet checked
S1623000028 REV. HService bulletinApr 1, 202611031241not yet checked
S1623000028 Rev.Service bulletinJan 23, 202310231735not yet checked
S1623000028Service bulletinJan 1, 202210222927not yet checked
S1623000028Service bulletinAug 13, 202110218500not yet checked
S1623000028 Rev.Service bulletinMar 30, 202110190668not yet checked
S1623000028Service bulletinFeb 12, 202010173313not yet checked

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

and 4 more model years on this site.

Also filed against model years this site has no page for: 2016 Ram 4500; 2017 Ram 4500; 2018 Ram 4500; 2019 Ram 4500; 2020 Ram 4500; 2021 Ram 4500; 2022 Ram 4500; 2023 Ram 4500; 2024 Ram 4500; 2025 Ram 4500; 2026 Ram 4500; 2016 Ram 5500; 2017 Ram 5500; 2018 Ram 5500; 2019 Ram 5500; 2020 Ram 5500; 2021 Ram 5500; 2022 Ram 5500; 2023 Ram 5500; 2024 Ram 5500; 2025 Ram 5500; 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.

Common questions

Source: NHTSA, 49 CFR 579.5

Is Ram S1623000028 Rev. 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 S1623000028 Rev. 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 S1623000028 Rev. cover?

The manufacturer filed it against 66 model years: 2026 Ram 1500, 2025 Ram 1500, 2024 Ram 1500, 2023 Ram 1500, 2022 Ram 1500, 2021 Ram 1500 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.