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

Kia Optima DL3 2019-2021 Owner's Manual / Driving your vehicle / 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.

To increase cruise control set speed

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 ...

To cancel cruise control, do one of the following

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:

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