Kia service campaign SC358
Kia filed this with NHTSA as a service campaign dated Dec 23, 2025, received Dec 18, 2025, about the visibility/wiper — 5 documents under this number: TSB_SC358, SC358_OWNR, SC358_QA, SC358_DPSM and more. It names 1 model year (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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationVOLUNTARY SERVICE CAMPAIGN: INCORRECT AMOUNT OF AIR CONDITIONING REFRIGERANT (SC358) - This bulletin provides information regarding an incorrect amount of air conditioning refrigerant in certain 2025MY Niro EV, HEV, and PHEV (SG2 P/HEV, SG2 EV) vehicles manufactured between September 2, 2024 and May 19, 2025. During assembly, the affected vehicles may have been produced with the incorrect amount of refrigerant during the in-line manufacturing process. As a result, the HVAC system may provide insufficient cooling in the cabin when vehicle owners are operating the vehicle.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_SC358 | Service bulletin | Dec 23, 2025 | 11026824 | not yet checked |
| SC358_OWNR | Service campaign | Dec 19, 2025 | 11026697 | not yet checked |
| SC358_QA | Service campaign | Dec 17, 2025 | 11026696 | not yet checked |
| SC358_DPSM | Service campaign | Dec 17, 2025 | 11026695 | not yet checked |
| SC358_DP | Service campaign | Dec 17, 2025 | 11026694 | not 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 themA 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 579.5Is Kia SC358 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 SC358 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 SC358 cover?
The manufacturer filed it against 1 model year: 2025 Kia Niro. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.