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.
2008 Kia Optima EX, 2.4 3FACTORY OEM SERVICE PROCEDURE
Front Impact Sensor (FIS): Installation
CAUTION:
- Do not turn the ignition switch ON and do not contact the battery cable while replacing the front impact sensor.
- Install the new Front Impact Sensor and sensor bracket cover.
- Tighten the Front Impact Sensor mounting bolt.
Tightening torque: 1.0-1.4 kgf.m (10.2-13.8 N.m, 7.5-10.2 lb.ft)
- Install the front bumper. Refer to FRONT BUMPER .
- Reconnect the battery negative cable.
- After installing the Front Impact Sensor, confirm proper system operation: Turn the ignition switch ON the SRS indicator light should be turned on for about 6 seconds and then go off.
Factory Service Tools
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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.