Maybe it's only for CEL lights and not airbag? Does it have a code associated with it? Try this and see what it says:
Originally Posted by wjjeeps.com
Turn the ignition key until the digital odometer displays, repeat three times in succession and then back to "On" (On/Off, On/Off, On/Off, On). At the fourth "On" the odometer will be replaced with codes. If no codes are present then "Done" will appear.
I left my neg terminal disconnected for about 20 minutes and that cleared my code after I fixed the issue. I think the proper way would be use an OBDII to clear it but then again, maybe it only for CEL like I mentioned above.
2003 4.0L, OME HD Springs, OME Nitro Shocks, Rancho SS, 265/70R16 General Grabber AT2s