Hyundai service campaign 9C0
What it saysSome vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service campaign dated Apr 8, 2026, received Mar 5, 2025, about the electrical system — 3 documents under this number: 26-01-035H TSB, 25-01-018H-1 TSB, 25-01-018H TSB. It names 16 model years (2024–2026). 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 communicationSome vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to verify Bluelink Data Communication Unit (DCU) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 26-01-035H TSB | Service campaign | Apr 8, 2026 | 11031315 | PDF, 627 KB |
| 25-01-018H-1 TSB | Service campaign | May 8, 2025 | 11018574 | not found |
| 25-01-018H TSB | Service campaign | Feb 28, 2025 | 11014928 | PDF, 531 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 16 model years this bulletin names have filed 1,758 complaints with NHTSA since 2015. 632 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.
On the 2025 Hyundai Tucson, the 15 owners who gave an odometer reading for Electrical System reported it at a median of 5,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
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
While traveling the following have happened multiple times. It has already been serviced by the dealership who corrected all pending recalls and then informed me they could not replicate the problem. It has now happened since the vehicle was returned to me. This morning while driving at freeway speeds.
2026 Hyundai Tucson · Electrical System · filed with NHTSA Sep 17, 2026 · ODI 11764919
I have a 2026 Hyundai Kona that I’ve only had for 3 months and it has 7192 miles on it. Today I turned my vehicle on and the screen that displays my mileage, speedometer, gas level, coolant temp gauge, tire pressure monitor, and other safety features was blacked out with the words “NO SIGNAL” in red.
2026 Hyundai Kona · Electrical System · filed with NHTSA Oct 5, 2026 · ODI 11769128
In depth: 2025 Hyundai Ioniq 5 electrical problems → · 2025 Hyundai Santa Fe electrical problems → · 2025 Hyundai Tucson 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 group105 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 |
|---|---|---|---|
| P38 | Service bulletin | Oct 29, 2026 | Certain Tucson (NX4, NX4A), Tucson Hybrid (NX4 HEV), and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may be eligible for the installation of t… |
| 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… |
| Z09 | Warranty extension | Sep 26, 2026 | Certain Santa Fe Hybrid (TM HEV) and Santa Fe Plug-In Hybrid (TM PHEV) vehicles may have an inoperable horn that may be caused by foreign su… |
| 26-EM-014H | Service bulletin | Sep 16, 2026 | Some Tucson (TL) vehicles equipped with a 2.0L engine may exhibit a continued DTC P132600 after an ECM logic update has been performed per T… |
| 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… |
| 9D4 | Service campaign | Sep 1, 2026 | Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Comm… |
| LA39 | Warranty extension | Aug 29, 2026 | Some Palisade Hybrid (LX3 HEV) vehicles may illuminate the hybrid system warning light with Diagnostic Trouble Codes (DTC) P0C381C when the… |
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 9C0 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 9C0 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 9C0 cover?
The manufacturer filed it against 16 model years: 2026 Hyundai Ioniq 5, 2025 Hyundai Ioniq 5, 2026 Hyundai Kona, 2025 Hyundai Kona, 2024 Hyundai Kona, 2026 Hyundai Palisade and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.