Kia Optima Manual page 288

Driving your vehicle
If you leave the ENGINE START/
STOP button in the ACC or ON posi-
tion for a long time, the battery will
discharge.
WARNING
- Starting
vehicle
Never press the
START/STOP button while the
vehicle is in motion except in an
emergency. This would result in
loss of directional control and
braking function, which could
cause an accident.
5 10
ENGINE