2024 Hyundai Tucson/Sonata EGR Valve Fault & MIL

Why This Matters

Hyundai has identified a potential issue with the Exhaust Gas Recirculation (EGR) valve assembly in certain 2024 Hyundai Tucson and 2024 Hyundai Sonata vehicles. A faulty sensor within the EGR valve can lead to an electrical short. This short could cause the EGR valve itself or the crank position sensor to malfunction, as both components share the same power circuit.

The malfunction of these critical components can result in the illumination of the Malfunction Indicator Light ("MIL") on your dashboard. More critically, it could lead to a sudden loss of drive power during operation, posing a significant safety risk. Additionally, failure to address this issue could cause your vehicle to fail emissions inspections and may be considered a lack of proper maintenance.

Symptoms

Owners of affected 2024 Hyundai Tucson and 2024 Hyundai Sonata vehicles may observe one or both of the following symptoms:

• Malfunction Indicator Light ("MIL") illumination: The check engine light may turn on, indicating a system fault.
• Sudden loss of drive power: The vehicle may unexpectedly lose power while being driven.

Diagnosis and Trigger Conditions

The root cause of this problem is a faulty sensor located within the EGR valve assembly. This sensor can develop an electrical short. Because the EGR valve and the crank position sensor are on the same power circuit, a short in the EGR valve sensor can affect either component, leading to the observed symptoms. This is the underlying condition that the Hyundai Tucson EGR fault addresses.

Repair Procedure Summary

To resolve the potential issue, Hyundai Service Campaign 9B3 mandates the replacement of the EGR valve assembly and its associated gasket. This procedure aims to eliminate the faulty sensor and restore proper function to the emissions and engine management systems. The repair will be performed by authorized Hyundai dealers.

Owner Action

If you own a 2024 Hyundai Tucson or 2024 Hyundai Sonata, you should contact your nearest Hyundai dealer to schedule an appointment for this important service campaign. The repair, which involves replacing the EGR valve assembly and gasket, will be performed at NO CHARGE to you. While the actual repair typically takes less than 3 hours, your vehicle may be needed for a longer period.

For assistance or to schedule your appointment, you can call 1-855-371-9460 or visit www.hyundaiusa.com/campaignhome. On the website, you can enter your 17-digit Vehicle Identification Number ("VIN") to check if your vehicle is affected and schedule service. This ensures the Hyundai Tucson EGR fault is addressed promptly.

Important Warnings

• Emissions Compliance: For owners in California and states that have adopted California emissions regulations (Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, or Washington), completing this service is crucial. Without this repair, you may not be able to complete your annual vehicle registration or obtain a license tag. Your Hyundai dealer will provide a "Proof of Correction Certificate" upon completion, which you should retain with your vehicle records.
• Repair Duration: Although the procedure itself is estimated to take less than 3 hours, the dealer may require your vehicle for a longer duration. Plan accordingly when scheduling your visit.

NHTSA ID: 11009154