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
Repair Procedures: Removal
- Open the trunk.
- Remove the luggage side trim [RH] side cover.
- Turn ignition switch OFF and disconnect the battery negative (-) terminal (A).
- Disconnect the battery sensor connector (B).
Battery (-) Terminal Tightening Nut:
7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.2 - 8.7 lb.ft)
- Remove the battery sensor by loosening the mounting bolt (A).
Battery Sensor Cable Flange Mounting Bolt (Chassis Ground):
10.8 - 13.7 N.m (1.1 - 1.4 kgf.m, 8.0 - 10.1 lb.ft)
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.