The purpose of the air bag warning light in your instrument panel is to alert you of a potential problem with your air bag - Supplemental Restraint System (SRS).
When the ignition switch is turned ON, the warning light should illuminate for approximately 6 seconds, then go off. Have the system checked if:
Kia Cee'd JD Service Manual: Purge Control Solenoid Valve (PCSV) Specifications
Specification
Item
Specification
Coil Resistance (Ω)
22.0 ~ 26.0 [20°C(68°F)]
...
Kia Cee'd JD Owners Manual: Larger children
Children who are too large for child
restraint systems should always occupy
the rear seat and use the available
lap/shoulder belts. The lap portion should
be fastened and snugged on the hips
and as low as possible. Check if the belt
fits periodically. A child's squirming could
put the ...