2021 Hyundai Tucson ECM Emissions Update Campaign 9C2

Why This Matters

Hyundai has launched Service Campaign 9C2 to address a concern regarding elevated engine-out emissions in certain vehicles equipped with Theta II engines. The California Air Resources Board (CARB) has determined that these vehicles may be releasing air pollutants that exceed both Federal and California standards. This campaign ensures your vehicle complies with environmental regulations and helps protect public health.

What's Being Addressed

This service campaign, identified as 9C2, focuses on vehicles equipped with Theta II engines that may exhibit elevated engine-out emissions. Specifically, the campaign applies to certain 2019-2020 model year (MY) Santa Fe (TMA), 2018-2019MY Sonata (LFA), and 2018-2021MY Tucson (TL) vehicles. The issue is a matter of compliance with emissions standards, and this Hyundai Tucson emissions update is crucial for environmental performance.

Repair Procedure Summary

The primary repair for this issue involves a software update to the Engine Control Module (ECM). Technicians must follow the service procedure outlined in Technical Service Bulletin (TSB) 25-01-087H-1, or its latest version, to update the ECM. This update is designed to improve the Theta II Emissions Logic, bringing the vehicle's emissions performance into compliance with regulatory standards. Only Hyundai Certified technicians, or those with higher qualifications, are authorized to perform this repair. All affected vehicles will require this ECM software update.

Required Parts and Documentation

During the service, specific parts and documentation are required to complete the campaign and ensure compliance:

• Campaign Sticker (P/N NP001-SC9C2): This sticker is applied under the hood of the vehicle after the service is completed. The document shows an example of the sticker with "9C2" and "NP001-SC9C2" printed on it.
• Vehicle Emission - Proof of Correction Card (P/N NP050-09006): For customers residing in states that have adopted California emissions regulations, a "Proof of Correction" card must be provided. These states include California (CA), Colorado (CO), Connecticut (CT), Delaware (DE), Maine (ME), Maryland (MD), Massachusetts (MA), New Jersey (NJ), New York (NY), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), Vermont (VT), and Washington (WA). This card serves as verification that the emissions repair has been completed.

Warranty Information

Hyundai provides specific labor time allowances for completing Service Campaign 9C2, as detailed in TSB 25-01-087H-1. The labor compensation is as follows:

• THETA II ECU Software Update: 0.4 Man-Hours (M/H) are allocated for the software update when campaign 9C2 is open.
• Admin + Emissions Label Application: An additional 0.2 M/H is provided for administrative tasks and applying the emissions label, but only when both campaign 9C2 and campaign 953 are open.

All claims are subject to review after submission. For digital documentation, a picture of the original shock absorbers displaying their production stamp is required. Claims may be debited if the submitted pictures do not comply with the requested ones per the TSB.

Important Notes for Owners

• No Cost Repair: This service, including the Hyundai Tucson emissions update, will be provided at no cost to you.
• Alternative Transportation: If your vehicle needs to be kept overnight or for an extended period, the dealership should offer alternative transportation, such as a Service Rental Vehicle (SRC), a 3rd Party Rental, or Rideshare.
• Emissions Sticker: Your vehicle will receive an emissions sticker under the hood during service.
• Proof of Correction Card: If you live in a state requiring it (CA, CO, CT, DE, ME, MD, MA, NJ, NY, OR, PA, RI, VT, WA), you will receive a "Proof of Correction" card. Retain this card for your records, as it may be required for vehicle registration.
• Check Engine Light: If your vehicle experiences a "check engine light" related to emissions, contact your nearest Hyundai dealership for assistance to schedule an appointment.
• Wait Times: Dealerships are advised to be transparent about wait times and provide updates if the estimated service duration is exceeded.

Owner Notification Timeline

Customers affected by Service Campaign 9C2 are expected to be notified via First Class Mail. Notifications are scheduled to begin in January 2026.

Source: NHTSA ID: 11027002