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Manufacturer communication · Service campaign

Hyundai service campaign TCWA

Hyundai filed this with NHTSA as a service campaign dated Aug 8, 2025, received Aug 14, 2025, about the exterior lighting — 1 document under this number: 25-01-044H TSB. 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.

What the bulletin says

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

Some Kona Electric (SX2 EV) vehicles may experience battery drain due to faulty logic keeping the taillights illuminated while the vehicle is parked and turned off. Follow the procedures outlined in this TSB to update the Body Domain Controller (BDC) to the latest software.

Manufacturer campaign id TCWA Kind Service campaign Manufacturer date Aug 8, 2025 Received by NHTSA Aug 14, 2025 Components Exterior Lighting

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
25-01-044H TSBService campaignAug 8, 202511021866not 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

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 Hyundai TCWA 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 TCWA 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 TCWA cover?

The manufacturer filed it against 2 model years: 2025 Hyundai Kona, 2024 Hyundai Kona. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.