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: Removal
- Remove the air cleaner assembly and air duct. (Refer to Engine Mechanical System-"Air cleaner ")
- Remove the Hybrid Power Control Unit (HPCU) assembly. (Refer to Hybrid control system - "HPCU ")
- Remove the under cover. (Refer to Engine Mechanical System-"Engine Room Under cover ")
- Remove the valve body assembly. (Refer to valve body system-"valve body ")
- Disconnect the input/output speed sensor connector (A).
- Remove the solenoid valve connector assembly after removing bolts (B).
- Disconnect the main connector (A).
- Press the lock
- Raise the lever
- Remove the clip (A) after removing the bolt.
- Disconnect the main connector (A) from the transaxle.
Factory Service Tools
Use the Manual With the Right Hardware
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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.