Kia Optima: Cruise Control System / To decrease the cruising speed

Follow either of these procedures:
- Move the lever down (to SET-) and hold it. Your vehicle will gradually slow
down. Release the lever at the speed you want to maintain.
- Move the lever down (to SET-) and release it immediately. The cruising speed
will decrease by 2 km/h (1.0 mph) each time the lever is operated in this manner.
To temporarily accelerate with the cruise control on:
If you want to speed up temporarily when the cruise control is on, depress the
accelerator pedal. Increased speed will not interfere with the cruise control operation
or change the set speed.
To return to the set speed, take your foot off the accelerator.
Follow either of these procedures:
Move the lever up (to RES+) and hold it. Your vehicle set speed will increase
by 10 km/h (5 mph). Release the lever at the speed you want.
Move the lever ...
Depress the brake pedal.
Shift into N (Neutral) with an Automatic transmission.
Press the CANCEL switch.
Decrease the vehicle speed lower than the memory speed by 20 km/h (12 mph).
Decrea ...
Other information:
Components and components location
Components
1. Windshield glass
2. Windshield glass upper molding
Repair procedures
Removal
Put on gloves to prevent hand injuries. ...
The driver must be cautious in the below situations, because the system may not
detect other vehicles or objects in certain circumstances.
- When a trailer or carrier is installed.
- The vehicle drives in inclement weather such as heavy rain or snow.
- The sensor is polluted with rain, snow, mu ...