Kia Optima: Cruise ControlThe cruise control system allows you to program the vehicle to maintain a constant speed without resting your foot on the accelerator pedal.
With cruise control, you can set and automatically maintain any speed of more than about 25 mph (40 km/h).
WARNING - Cruise Control
Do not use the cruise control feature under the following conditions:
To set cruise control speed:

1. Push in the cruise control main switch. This turns the system on.
2. Accelerate to desired cruising speed above 25 mph (40 km/h).

3. Push the “COAST/SET” control switch and release it. The "CRUISE" indicator light in the instrument cluster will illuminate after you have set the vehicle speed at the desired speed.
4. Remove your foot from the accelerator pedal and the desired speed will automatically be maintained.
5. To increase speed, temporarily depress the accelerator pedal enough for the vehicle to exceed the preset speed. When you remove your foot from the accelerator pedal, the vehicle will return to the speed you have set.
To cancel the cruise speed
Do one of the following:
Power Steering
To Resume the Preset SpeedServicing The Electrical System
1.
Prior to servicing the
electrical system, be sure to turn off the ignition switch and disconnect
the battery ground cable.
...
Adjusting the height of front seat cushion
To change the height (front portion) of the seat cushion, rotate the knob located
on the outside of the seat cushion.
To lower the seat cushion, rotate the knob toward the front of the vehicle ...
Turbo Charger. Components and Components Location
Components
1. Turbine housing
2. Turbine inlet
3. Turbine outlet
4. Compressor housing
5. Compressor inlet
6. Compressor outlet
7. Center housing
8 ...