Hyundai service campaign SERVICE CAMPAIGN 9B0
What it saysCertain 2024MY Tucson Hybrid (NX4 HEV) vehicles may exhibit poor contact or wire breakage of the injector wiring harness. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service campaign dated Jul 10, 2024, received Aug 7, 2024, about the fuel/propulsion system — 2 documents under this number: 24-01-049H (2 filings). It names 1 model year (2024). 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 2024MY Tucson Hybrid (NX4 HEV) vehicles may exhibit poor contact or wire breakage of the injector wiring harness. This affects a limited lot number of the wiring harness production. Follow the procedures in this bulletin to inspect the lot number for the affected parts and, if applicable, replace the injector wiring harness with a new part.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24-01-049H | Service bulletin | Jul 10, 2024 | 11006057 | PDF, 2,208 KB |
| 24-01-049H | Service campaign | Jul 9, 2024 | 11006097 | PDF, 472 KB |
What the document itself lists
The manufacturer titles it “INJECTOR WIRING HARNESS INSPECTION/REPLACEMENT”.
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 35302-2M400QQH | — | — |
| 28313-2M100 | Gasket-T/Body | — |
| 28314-2M800 | Manifold | 1 |
| 28411-2M100 | Gasket-Port | 2 |
Read by machine from the document NHTSA serves (12 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.
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 1 model year this bulletin names have filed 152 complaints with NHTSA since 2015.
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 fuel/propulsion system
Source: same model, same component group2 other manufacturer communications filed against the Hyundai Tucson under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 26-FL-001H | Service bulletin | Jan 7, 2026 | Some vehicles equipped with a 2.5L GDI Theta III engine (non-Turbo) may exhibit one or more misfire DTCs due to the GDI fuel injectors leaki… |
| 25-FL-001H | Service bulletin | Jan 9, 2025 | Some vehicles equipped with a 2.5L GDI Theta III engine (non-Turbo) may exhibit one or more misfire DTCs due to the GDI injectors leaking in… |
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 SERVICE CAMPAIGN 9B0 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 SERVICE CAMPAIGN 9B0 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 SERVICE CAMPAIGN 9B0 cover?
The manufacturer filed it against 1 model year: 2024 Hyundai Tucson. 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 14 Nov 2023 – 27 Nov 2023 — the build date is on the certification label in the driver’s door jamb.