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Fitment notes: AGM battery required for start-stop system; located in engine bay
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Every control module on the 2024-2026 Hyundai Sonata N Line — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Motor Driven Power Steering Control Module (MDPS)2.2 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Steering column, integrated with electric assist motor at base of column below dash
🔧 Hyundai GDS
⚠️ Steering angle sensor calibration mandatory after replacement; N Line has sport-tuned MDPS calibration
📍 Rear cargo area, driver side rear quarter panel, behind trim panel
🔧 Autel MaxiSys Ultra or Launch X431
⚠️ Front and rear parking sensors; sensor calibration may be needed
Telematics Control Unit (TCU)0.6 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Headliner, above rearview mirror, integrated with antenna module
🔧 Hyundai GDS
⚠️ Blue Link telematics with 5G connectivity; requires dealer activation and subscription pairing
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2025 Hyundai Sonata N Line 2.5L Turbo I4 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.