Kia Optima: Manual heating and air conditioningThe heating and cooling system can be controlled manually by pushing buttons other than the AUTO button. In this case, the system works sequentially according to the order of buttons selected.
1. Start the engine.
2. Set the mode to the desired position. To improve the effectiveness of heating and cooling :
- Heating: 
- Cooling:

3. Set the temperature control to the desired position.
4. Set the air intake control to the outside (fresh) air or recirculated air position.
5. Set the fan speed control to the desired speed.
6. If air conditioning is desired, turn the air conditioning system on.
Press the AUTO button in order to convert to full automatic control of the system.
Automatic heating and air conditioning
Mode selectionWelcome light (if equipped)
When all the doors (and trunk) are locked and closed, the room lamp will come
on for about 15 seconds if any of the below is performed.
Without smart key system
- When the door unlock butto ...
Owner maintenance
The following lists are vehicle checks and
inspections that should be performed by
the owner or an authorized Kia dealer at
the frequencies indicated to help ensure
safe, dependable operation ...
Curtain Airbag (CAB) Module. Description and Operation
Description
Curtain airbags are installed inside the headliner (LH and RH) and protect the driver
and passenger from danger when side crash occurs. The SRSCM determines deployment
of curtain airb ...