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 SpeedInstallation
1.
Install the head lamp bulbs.
2.
Connect the connectors.
3.
Install the head lamp bolts (2EA).
4.
Connect the negative (-) battery
termi ...
Supplemental Restraint System Service
Your Supplemental Restraint System is virtually maintenance-free. There are no
parts which you can service.
You must have the system serviced under the following circumstances:
If an air bag ev ...
Inspection
1.
Turn ignition switch OFF.
2.
Disconnect the oil temperature
sensor connector.
3.
Measure resistance between sensor
signal terminal and sensor g ...