got the alt replaced on my 2000 blazer had bat tested it was good. now that the alt charges the security light on the dash the battery light and the airbag light are on. I know i need a multifunction switch could these lights be tied into this issue as well?

 

Those lights could be caused by a failing ignition switch.

 

Ok Ill look into that. I got to change the multifunction switch anyway so the ign switch ill do since im right there