how to get my air bag light to go off on my 2006 dodge charger

the weight sensor needs to be re-calibrated on the seats. Stealerships and/or your local body shop/mechanic should be able to do that

Open your trunk and enter the spare tire area. There is a fuse box in there. Make sure all of the fuses are tight. There are two black "fuse" looking ones. Make sure both are in tight. Then look under both front seats and make sure that all of the connectors are tight. The airbag connectors are the ones with yellow wires. But press firm on all of them to be sure. Good luck.