Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Hyundai Sonata Plug-In HybridFACTORY OEM SERVICE PROCEDURE
Repair Procedures: Installation
- Install in the reverse order of removal.
- Perform the procedures related in the ECM after replacing the TCM. (Refer to Engine Control/Fuel System - "Engine Control Module ")
- Perform the TCM adaptive values learning procedure. (Refer to Automatic Transaxle Control System - "Repair procedures ")
- Perform EOP oil flow deviation learning using the GDS
- Connect the VCI data cable to the self-diagnosis connector located at the lower section of the driver-side crash pad.
- Turn ON the engine and power up the VCI.
- Select the vehicle model from the GDS screen.
- Commence EOP flow deviation learning.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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