Kia service campaign SC339
What it saysVOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC339) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Service Campaign… NHTSA’s full summary ↓
Kia filed this with NHTSA as a service campaign dated May 3, 2025, received Apr 30, 2025, about the seats — 5 documents under this number: SC339_OWNR, SC339_TSB, SC339_QA, SC339_DPSM and 1 more. It names 2 model years (2024–2025). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationPicked out of NHTSA’s summary below, word for word. The document itself is the record, and the dealer checks the VIN.
What 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.
VOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC339) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Service Campaign to inspect and, if necessary, replace the right-hand 2nd-row seat cushion wire harness on certain 2024-2025 MY Sorento X-Line Prestige AWD and X-Pro SX Prestige AWD vehicles equipped with heated 2nd-row Captain’s Chairs, manufactured from December 7, 2023 through January 29, 2025. Dealers will also reroute the wiring harness and install additional protective covering to prevent damage to the wiring.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SC339_OWNR | Service campaign | May 3, 2025 | 11018158 | PDF, 143 KB |
| SC339_TSB | Service bulletin | Apr 30, 2025 | 11017411 | PDF, 2,502 KB |
| SC339_QA | Service campaign | Apr 30, 2025 | 11017372 | PDF, 113 KB |
| SC339_DPSM | Service campaign | Apr 30, 2025 | 11017371 | PDF, 84 KB |
| SC339_DP | Service campaign | Apr 30, 2025 | 11017370 | PDF, 108 KB |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 250A12I0 | RH 2nd Row Seat Wire Harness Inspection + Harness rerouting+ Fastener Removal +Tape… | 0.3 hrs |
| 250A12R0 | RH 2nd Row Seat Wire Harness Inspection + Replacement + Rerouting + Tape Application | 1.1 hrs |
Read by machine from the document NHTSA serves (12 pages), read Sep 30, 2026. A part number is shown only where it matches Kia’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote.
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 2 model years this bulletin names have filed 189 complaints with NHTSA since 2015. 46 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.
I am writing to report a safety concern with my 2025 Kia Sorento plug-in hybrid. On multiple occasions, after starting the vehicle, the instrument panel appears normal, but the vehicle does not enter the ready state. The ready indicator does not illuminate and the vehicle will not shift into drive or reverse.
2025 Kia Sorento · Electrical System · filed with NHTSA Aug 8, 2026 · ODI 11755646
Car has sensor issues. It ran into pole and median after defective collision assist said sensor was blocked. Has emission leak. Second vehicle i had with that and they wont cover under warranty. Kia refuses to by back a car do not feel safe driving. They refuse to fix things under warranty.
2024 Kia Sorento · Electrical System · filed with NHTSA Jan 20, 2026 · ODI 11712048
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.
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 SC339 a recall?
No. A service campaign 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 SC339 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does SC339 cover?
The manufacturer filed it against 2 model years: 2025 Kia Sorento, 2024 Kia Sorento. 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: built on or after 7 Dec 2023 — the build date is on the certification label in the driver’s door jamb.