To turn off the airbag light on a 2012 Dodge Ram, first ensure that the seat belts and all connections related to the airbag system are secure. You can then try disconnecting the vehicle's battery for about 10 minutes to reset the system. If the light remains on, it may indicate a fault in the airbag system that requires diagnostic tools to identify. It's recommended to consult a professional mechanic if you're unable to resolve the issue yourself.
Replace the burnt out light bulb
autozone.com has online manuals you can access for free
it means that you have a bulb out somewhere on your truck.... IE backup light, brake light, turn signal, running light.. etc etc..
find out what is causing it to come on (by going to a shop) and correcting it.
All that info can be found in the owners manual.
From behind the light bezel (under the truck) quarter turn and remove the lamp holder. Replace with an "893" type bulb
turn key to on position but don't start it, depress the gas pedal fully 3 times then start the truck and the warning should be gone!
Turn on the truck next time
Turn the ignition on, engine off. Press the gas pedal to the floor three times.
turn key to "on" position (not running) depress the accelerator pedal 3 times and start vehicle ......warning / light should then be off
Pull the 4x4 lever or turn the 4x4 nob depends on what year the truck is
Pop the fusible link?