Hyundai service campaign 9C2
Hyundai filed this with NHTSA as a service campaign dated May 21, 2026, received Dec 2, 2025, about the engine — 19 documents under this number: 26-01-013H-2 DN, 26-01-013H-2 TSB, 9C2 060518, 9C2 DCS 260518 and more. It names 13 model years (2016–2021). 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationCertain 2019 – 2020 model year Santa Fe, 2017 – 2018 model year Santa Fe Sport, 2015 – 2019 model year Sonata, and 2018 – 2021 model year Tucson vehicles may exhibit elevated engine-out emissions. Hyundai is conducting a service campaign to update the Engine Control Module (ECM) Software for vehicles equipped with the (2.4 GDI) Theta II engine to improve engine combustion and fuel trim adaptations.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 26-01-013H-2 DN | Service campaign | May 21, 2026 | 11033700 | not yet checked |
| 26-01-013H-2 TSB | Service campaign | May 21, 2026 | 11033699 | not yet checked |
| 9C2 060518 | Service campaign | May 19, 2026 | 11033705 | not yet checked |
| 9C2 DCS 260518 | Service campaign | May 19, 2026 | 11033701 | not yet checked |
| 9C2 OL | Service campaign | Apr 14, 2026 | 11031416 | not yet checked |
| 9C2 Susp DCS | Service campaign | Mar 30, 2026 | 11030625 | not yet checked |
| 9C2 Susp DN | Service campaign | Mar 30, 2026 | 11030619 | not yet checked |
| 26-01-013H-1 DCS | Service campaign | Mar 6, 2026 | 11029941 | not yet checked |
| 26-01-013H-1 DN | Service campaign | Mar 4, 2026 | 11029940 | not yet checked |
| 26-01-013H-1 TSB | Service campaign | Mar 4, 2026 | 11029939 | not yet checked |
| 26-01-013H DCS | Service campaign | Feb 7, 2026 | 11028671 | not yet checked |
| 26-01-013H DN | Service campaign | Feb 6, 2026 | 11028670 | not yet checked |
| 26-01-013H TSB | Service campaign | Feb 6, 2026 | 11028669 | not yet checked |
| 25-01-087H-1 DCS | Service campaign | Dec 15, 2025 | 11027008 | not yet checked |
| 25-01-087H-1 TSB | Service campaign | Dec 15, 2025 | 11027005 | not yet checked |
| 25-01-087H-1 DN | Service campaign | Dec 15, 2025 | 11027002 | not yet checked |
| 25-01-087H DCS | Service campaign | Nov 26, 2025 | 11025965 | not yet checked |
| 25-01-087H DN | Service campaign | Nov 26, 2025 | 11025964 | not yet checked |
| 25-01-087H DCS | Service campaign | Nov 26, 2025 | 11025963 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Hyundai 9C2 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 9C2 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 9C2 cover?
The manufacturer filed it against 13 model years: 2020 Hyundai Santa Fe, 2019 Hyundai Santa Fe, 2018 Hyundai Santa Fe, 2017 Hyundai Santa Fe, 2019 Hyundai Sonata, 2018 Hyundai Sonata and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.