Kia bulletin SA557
What it saysThis bulletin has been revised to include additional information. NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Oct 25, 2024, received Oct 30, 2024, about the electrical system — 1 document under this number: TSB_ELE326_R2. It names 1 model year (2024). 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 communicationWhat 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.
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: POWER SEAT MODULE OPERATION LOGIC IMPROVEMENT (SA557) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to update the software logic of the Power Seat Module (PSM) system on certain 2024MY EV9 (MV) vehicles produced from September 24, 2023 through November 6, 2023 to improve the front seat Easy Assist and Leg Rest operation, preventing the driver's leg rest from extending while driving. In addition, the software also improves the logic of the cargo area power folding seat buttons, so that the left seat will fold partially if the front row seat is too far back, which is the existing logic for the right seat.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_ELE326_R2 | Service bulletin | Oct 25, 2024 | 11009493 | PDF, 609 KB |
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 212 complaints with NHTSA since 2015. 106 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.
Drivers seat moving diagonally back and forth left to right when your make left and right turns. The force the car makes, forces the drivers seat to shift. Its a huge safety concern, everyone that has an EV9, a crash can result in the driver being killed because if the seat moves left to right forward and back under heavy or even light g…
2024 Kia EV9 · Seats · filed with NHTSA Sep 4, 2024 · ODI 11612521
The vehicle digital instrument cluster turned off and wouldn’t show speed or any other information. The central infotainment screen and the climate control screen worked while driving. The turn signals were not working while this was happening either.
2024 Kia EV9 · Electrical System · filed with NHTSA Sep 15, 2024 · ODI 11614714
In depth: 2024 Kia EV9 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 group41 other manufacturer communications filed against the Kia EV9 under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Kia list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| PI2601B | Other | Sep 1, 2026 | PRODUCT IMPROVEMENT CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (PI2601B) - This document is the announcement to the dealer Parts and Se… |
| TSB_ELE427 | Service bulletin | Aug 11, 2026 | TECHNICAL SERVICE BULLETIN: VEHICLE-TO-EVERYTHING (V2X) SOFTWARE UPGRADE - This bulletin provides information to install the Vehicle-to-Ever… |
| OTA_ELE427_RELEASE_NOTES | Over-the-air update | Aug 11, 2026 | OVER-THE-AIR: OVER-THE-AIR SOFTWARE UPDATE FOR COMMUNICATION CONTROL UNIT: This Over-the-Air (OTA)software update is designed to update the… |
| ELE413 | Over-the-air update | Jun 18, 2026 | RELEASE NOTES: OVER-THE-AIR: SOFWARE UPDATE FOR DATA CONNECTIVITY (ELE413) - This Over-the-Air (OTA) software update is designed to update t… |
| TSB_ELE422 | Service bulletin | May 28, 2026 | TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE. KIA. COM - This bulletin provides information and service proc… |
| TSB_ELE417 | Service bulletin | Apr 14, 2026 | TECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infot… |
| TSB_ELE413 | Service bulletin | Mar 20, 2026 | TECHNICAL SERVICE BULLETIN: DCU COMMUNICATION LOGIC IMPROVEMENT - This bulletin provides the procedure to upgrade the Data Connectivity Unit… |
| SC360 | Service campaign | Feb 6, 2026 | TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: EF31 CONNECTOR BRACKET REPLACEMENT (SC360) - This bulletin provides information on r… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Kia, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kia SA557 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 SA557 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 Kia warranty extension on file lists the ones Kia has filed.
Which vehicles does SA557 cover?
The manufacturer filed it against 1 model year: 2024 Kia EV9. 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: 2024MY EV9 (MV): built 24 Sep 2023 – 6 Nov 2023; EV9 (MV): built 24 Sep 2023 – 6 Nov 2023 — the build date is on the certification label in the driver’s door jamb.