Kia Optima: InspectionCheck for continuity between the terminals while operating the wiper and washer switch. If it is not normal condition, replace wiper and wiper switch.

Wiper SwitchTips for towing a stuck vehicle
The following methods are effective when your vehicle is stuck in mud, sand or
similar substances that prevent the vehicle from being driven out under its own
power.
Remove the soil and sand, ...
Central door locks
The central door locking switch is located on the driver’s arm rest. It is operated
by depressing the door lock switch. If any door is open when the switch is depressed,
the door will remain l ...
Changing the coolant
Have the coolant changed by an authorized
Kia dealer according to the
Maintenance Schedule at the beginning
of this section.
CAUTION
Put a thick cloth or fabric around
the radiator cap befo ...