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.
2012 Kia Optima L4-2.4L HybridFACTORY OEM SERVICE PROCEDURE
IMS Control Switch
Inspection
1. Remove the IMS control switch connector (A).
2. With the IMS control switch in each position, make sure that continuity exists between the terminals below. If continuity is not as specified, replace the IMS control switch.
Driver Power Seat Control Switch (For IMS)
Removal
1. Disconnect the negative (-) battery terminal.
2. Remove the seat side cover switch (A).
3. Remove the seat side cover (A).
4. Disconnect the IMS control switch connector (A).
5. Loosen the IMS control switch (A) mounting screws (3EA).
Installation
NOTE:
- Make sure that the IMS control switch connectors and related connectors are plugged in properly.
- Check the IMS control switch operates normally.
1. Connect the connectors and reassemble the IMS control switch.
2. Reassemble the seat side cover.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.