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 SXFACTORY OEM SERVICE PROCEDURE

Front Wiper Mist Control

WARNING: This page is about a different car, the 2013 Kia Sportage and 2012 Kia Sportage. However, it is still accessible from the selected car via links, so may be relevant.

In case of IGN2 On (L_IGN2 = ON), if turn on the Wiper Mist Switch (L_WiperMistswitch= On), then Wiper is controlled, by switch on time.
Mist operation does not work at Wiper Washer.

Fig 1: Front Wiper Mist Control Timing Pattern

Courtesy of KIA MOTORS AMERICA, INC.

T1: One wiping, T2: Mist one time

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.