Hyundai service campaign LA2
What it saysCertain Santa Cruz (NXT) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service campaign dated Nov 11, 2025, received Nov 4, 2025, about the electrical system — 4 documents under this number: 25-01-079H-1 DCS, 25-01-079H-1 TSB, 25-01-079H TSB, 25-01-079H DCS. It names 2 model years (2025–2026). 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 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 Santa Cruz (NXT) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. Technical Service Bulletin (TSB) 25-01-079H provides instructions to perform a software update for the DCU module. This update can also be conducted via OTA. The customer can complete on his/her own if he/she has an active subscription to Hyundai Bluelink. A visit to the dealership is not required. Deployment of the OTA to Bluelink customers is planned starting the week of 11/03/25.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 25-01-079H-1 DCS | Service campaign | Nov 11, 2025 | 11025588 | PDF, 114 KB |
| 25-01-079H-1 TSB | Service campaign | Nov 11, 2025 | 11025587 | PDF, 672 KB |
| 25-01-079H TSB | Service campaign | Oct 30, 2025 | 11024813 | PDF, 659 KB |
| 25-01-079H DCS | Service campaign | Oct 30, 2025 | 11024812 | PDF, 73 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 2 model years this bulletin names have filed 27 complaints with NHTSA since 2015. 4 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 was driving on a highway at 55mph at night today 3/1/2026 and all of a sudden the headlights, instrumentation lights, and computer display went out, very scary, the all turned back on about 1.5 seconds later
2025 Hyundai Santa Cruz · Electrical System · filed with NHTSA Mar 1, 2026 · ODI 11721312
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 group13 other manufacturer communications filed against the Hyundai Santa Cruz 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… |
| 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… |
| LA26 | Warranty extension | May 8, 2026 | Certain Santa Cruz (NXT) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) softwar… |
| 9C0 | Service campaign | Apr 8, 2026 | Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasiona… |
| 25-BE-020H | Service bulletin | Sep 30, 2025 | This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may var… |
| TBW | Service campaign | Jul 9, 2025 | A software update is available for multiple vehicles equipped with either Display Audio 2.0V or the AVN 5th Gen Wide system. |
| 25-EM-005H | Service bulletin | Jun 24, 2025 | Certain 2022-2023MY Santa Cruz (NXT) vehicles may exhibit a warning lamp illumination for a diagnostic trouble code P218100 that is related… |
| 25-BE-002H | Service bulletin | May 16, 2025 | This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and Software Update. The changes may var… |
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 LA2 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 LA2 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 LA2 cover?
The manufacturer filed it against 2 model years: 2026 Hyundai Santa Cruz, 2025 Hyundai Santa Cruz. 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 22 Jul 2024 – 12 Aug 2025 — the build date is on the certification label in the driver’s door jamb.