When ignition switch is turned to ON, the indicator light illuminates, then goes off if the ESC system is operating normally.
The ESC indicator light blinks whenever ESC is operating or illuminates when ESC fails to operate.
ESC OFF indicator light comes on when the ESC is turned off with the button.
CAUTION
Driving with varying tire or wheel sizes may cause the ESC system to malfunction. When replacing tires, make sure they are the same size as your original tires.
WARNING
The Electronic Stability Control system is only a driving aid; use precautions for safe driving by slowing down on curved, snowy, or icy roads. Drive slowly and don’t attempt to accelerate whenever the ESC indicator light is blinking, or when the road surface is slippery.
Kia Cee'd JD Service Manual: Coolant Repair procedures
Replacement And Air Bleeding
Never remove the radiator cap when the engine is hot. Serious scalding
could be caused by hot fluid under high pressure escaping from the radiator.
...
Kia Cee'd JD Owners Manual: For vehicle’s equipped with smart
key system
Key not in vehicle
If the smart key is not in the vehicle and
if any door is opened or closed with the
engine start/stop button in the ACC, ON,
or START position, the warning illuminates
on the LCD display. Also, the chime
sounds for 5 seconds when the smart
key is not in the vehicle ...