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.
Heater Control Unit Replacement
2015 Kia Optima SX TurboSECTION Heater Control Unit Replacement
CAUTION:
- When prying with a flat-tip screwdriver, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.
- Put on gloves to protect your hands.
- Using a screwdriver or remover, remove the crash pad side cover (A).
- After loosening the mounting screws, then remove the crash pad lower panel (A).
- Disconnect the crash pad lower switch connectors (A), diagnosis connector (B), crash pad under lamp connector (C).
(LH)
- Disconnect the start/stop button connector (D).
(RH)
- Using a screwdriver or remover, remove the crash pad garnish [RH] (A).
- After loosening the mounting screws, then remove the heater control unit (A).
- Disconnect the connectors (A) and hose (B).
- Installation is the reverse of removal.
NOTE:
- Make sure the connectors are connected in properly.
- Replace any damaged clips.
RENDER: 1.0x
NO RELATED
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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.