Kia Optima: Change to "winter weight" oil if necessary

Check battery and cables

Winter puts additional burdens on the battery system. Visually inspect the battery and cables as described in section 7. The level of charge in your battery can be checked by an authorized Kia ...

Check spark plugs and ignition system

Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. ...

See also:

When Your Vehicle Is Being Towed By Another Vehicle Other Than a Tow Truck (in case of an emergency)
Turn the ignition switch to ACC so the steering wheel isn’t locked. Place the transaxle shift lever in N (Neutral). Vehicles equipped with automatic transaxles should not exceed 28 mph and ...

Finish Damage Repair
Deep scratches or stone chips in the painted surface must be repaired promptly. Exposed metal will quickly rust and may develop into a major repair expense. ✽ NOTICE If your vehicle is dama ...

RCV Control Solenoid Valve. Description and Operation
Description RCV (Recirculation Valve) Control Solenoid Valve is installed on the intercooler inlet pipe and operates the RCV actuator which controls the by-pass passage of the turbocharger comp ...