Hyundai service campaign TCS
What it saysCertain vehicles listed below may have a Bluelink malfunction or not able to have Bluelink setup. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service campaign dated Jan 25, 2025, received Jan 30, 2025, about the electrical system — 1 document under this number: 25-01-005H TSB. It names 3 model years (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 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.
Certain vehicles listed below may have a Bluelink malfunction or not able to have Bluelink setup. This bulletin provides instructions to reset the network in Dealer Mode to prevent the Data Concentrator Unit (DCU) modem from experiencing a "Blue Link Not Open" error.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 25-01-005H TSB | Service campaign | Jan 25, 2025 | 11013237 | PDF, 491 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 3 model years this bulletin names have filed 375 complaints with NHTSA since 2015. 252 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.
Integrated Charging Control Unit (ICCU) failed while driving. Heard a pop from below the rear seats. "Check vehicle electrical system" message popped up initially, then changed to "Stop vehicle and check power supply" Vehicle could not exceed 20mph directly after failure, then lost all driving power just as I pulled the vehicle off the…
2025 Hyundai Ioniq 5 · Electrical System · filed with NHTSA Feb 24, 2026 · ODI 11720305
On Feb. 10, 2026, my Sonata began showing a blue screen on the infotainment screen when the vehicle was in reverse. The blue screen contained the message "Incoming Camera Signal Error. Please try again later." Between Feb. 10 and 22, I continued seeing the aforementioned blue screen and message.
2025 Hyundai Sonata · Electrical System · filed with NHTSA Jun 24, 2026 · ODI 11746271
The vehicle experienced a total electrical failure while driving. Dealer diagnosed the issue as a loose fuse box connector/power distribution connector. The vehicle and repaired component should be available for inspection through the Hyundai dealer service department.
2025 Hyundai Kona · Electrical System · filed with NHTSA May 6, 2026 · ODI 11736013
In depth: 2025 Hyundai Ioniq 5 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 group63 other manufacturer communications filed against these Hyundai models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Hyundai list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 26-GI-003H | Service bulletin | Oct 27, 2026 | This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 2nd Navigation Map and So… |
| LA42 | Warranty extension | Oct 13, 2026 | Certain IONIQ 5 (NEA EV) vehicles may experience Malfunction Indicator Lamp (MIL) illumination and false battery overtemperature fault diag… |
| 9C5 | Service campaign | Sep 9, 2026 | Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This u… |
| LA29 / LA30 | Warranty extension | Jul 14, 2026 | Certain 2024-2026MY Sonata (DN8) and 2024-2026MY Sonata Hybrid (DN8 HEV) vehicles may exhibit intermittent battery discharge condition due t… |
| LA30 | Warranty extension | Jul 13, 2026 | Certain Sonata Hybrid (DN8 HEV) vehicles may exhibit intermittent battery discharge conditions due to the air conditioning controller not fu… |
| LA29 | Warranty extension | Jul 13, 2026 | Certain Sonata (DN8) vehicles may exhibit intermittent battery discharge condition due to the air conditioning controller not fully powering… |
| Z14 | Warranty extension | Jun 25, 2026 | Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the… |
| 26-GI-002H | Service bulletin | May 27, 2026 | This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and So… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Hyundai, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Hyundai TCS 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 TCS 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 TCS cover?
The manufacturer filed it against 3 model years: 2025 Hyundai Ioniq 5, 2025 Hyundai Kona, 2025 Hyundai Sonata. 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 23 Sep 2024 – 24 Oct 2024; built 19 Sep 2024 – 4 Nov 2024; built 19 Sep 2024 – 16 Oct 2024 — the build date is on the certification label in the driver’s door jamb.