Hyundai bulletin 25-EM-005H
What it saysCertain 2022-2023MY Santa Cruz (NXT) vehicles may exhibit a warning lamp illumination for a diagnostic trouble code P218100 that is related to the Integrated Thermal Management Module (ITM). NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service bulletin dated Jun 24, 2025, received Jul 1, 2025, about the electrical system — 1 document under this number: 25-EM-005H TSB. It names 2 model years (2022–2023). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationCertain 2022-2023MY Santa Cruz (NXT) vehicles may exhibit a warning lamp illumination for a diagnostic trouble code P218100 that is related to the Integrated Thermal Management Module (ITM). Follow the service procedure outlined in this bulletin to replace the ITM with a revised part and update the Engine/Electronic Control Unit (ECU).
Trouble codes it names: P2181 all 1 read from the document itself; NHTSA’s summary names none
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 25-EM-005H TSB | Service bulletin | Jun 24, 2025 | 11019881 | PDF, 776 KB |
What the document itself lists
The manufacturer titles it “INTEGRATED THERMAL MANAGEMENT (ITM)”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 25600-2S600 | — | — | |
| 25600-2S600QQH | — | — | |
| 25462-2S000 | Water Inlet O-Ring | 1 | eBay Motors → |
| 00232-19098 | Pink Coolant | 2 | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 30DA13R0 | DTC Inspection & ITM Replacement, and ECU Software Update | 2.1 hrs |
Read by machine from the document NHTSA serves (11 pages), read Sep 30, 2026. A part number is shown only where it matches Hyundai’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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 265 complaints with NHTSA since 2015. 36 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.
2022 Santa Cruz 764 miles. Washed vehicle April 1st with hose, water & soap bubbles in grill of DRL. I was told that its a lens cover & not the LED DRL, but it collects and holds water & soap. I can't clean in there. Field service engineer came out, deamed normal by Hyundai, grill & lens are not sealed.
2022 Hyundai Santa Cruz · Electrical System · filed with NHTSA May 12, 2022 · ODI 11464351
The most major problem that occurred on 2-3 different occasions is that the emergency braking system activated for no reason on one occasion, almost causing a Rear end collision with a person behind me. No one to my sides, and in front of me on all of the occasions.
2023 Hyundai Santa Cruz · Electrical System · filed with NHTSA Jun 13, 2023 · ODI 11526766
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… |
| LA2 | Service campaign | Nov 11, 2025 | Certain Santa Cruz (NXT) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic… |
| 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-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 25-EM-005H a recall?
No. A service bulletin 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 25-EM-005H repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Hyundai warranty extension on file lists the ones Hyundai has filed.
Which vehicles does 25-EM-005H cover?
The manufacturer filed it against 2 model years: 2023 Hyundai Santa Cruz, 2022 Hyundai Santa Cruz. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.