The SRS (Airbag) service reminder indicator comes on and flashes for about 6 seconds after the ignition key is turned to the 'ON' position or after the engine is started, after which it will go out.
The light also comes on when the SRS is not working properly.
If the SRI does not come on, or continuously remains on after flashing for about 6 seconds when you turn the ignition key to the 'ON' position or started the engine, have the SRS inspected by an authorised Hyundai Dealer.
That's according to the bible namely HC Owner's Manual....or in other words...sounds normal