This warning light will illuminate for approximately 6 seconds each time you turn the ignition switch to the ON position.
This light also comes on when the SRS is not working properly. If the air bag warning light does not come on, or continuously remains on after operating for about 6 seconds when you turn the ignition switch to the ON position or started the engine, or if it comes on while driving, we recommend that the system be inspected by an authorized Kia dealer.
Kia Cee'd JD Service Manual: Inhibitor Switch Repair procedures
Inspection
1.
Inspect for loosened connectors, faulty connections, bends, corrosion,
contamination, deformation, or damage.
2.
Disconnect the inhibitor switch connector.
3.
Check the voltage on the p ...
Kia Cee'd JD Service Manual: Back-up Lamp Switch Specifications
Specifications
Item
Specified
Type
ON/OFF
Operation condition
Reverse gear
Operation voltage
10V ~ 15V
Operation temperatures
-30°C ...