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 Kia Optima Plug-In Hybrid EXFACTORY OEM SERVICE PROCEDURE
Automatic Transaxle Control System (PHEV)
- Components And Components Location
- Schematic Diagrams
- Repair Procedures
- Transaxle Control Module (TCM)
- Transaxle Oil Temperature Sensor
- Input Speed Sensor
- Output Speed Sensor
- Engine Clutch Control Solenoid Valve (E/C_VFS)
- 35R Clutch Control Solenoid Valve (35R/C_VFS)
- 26 Brake Control Solenoid Valve (26/B_VFS)
- Underdrive Brake Control Solenoid Valve (UD/B_VFS)
- Overdrive Clutch Control Solenoid Valve (OD/C_VFS)
- Line Pressure Control Solenoid Valve
- SS-A Solenoid Valve (ON/OFF)
- SS-B Solenoid Valve (ON/OFF)
- Inhibitor Switch
- Shift Lever
- Shift Cable
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.
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