1994 Oldsmobile Ciera FLASHING DASH LITES AND SLIPPING GEAR

I HAVE A RECURRING PROBLEM WITH THE ABS LITE COMING ON ,THEN THE AIR BAG LITE COMES ON FLASHING THEN IS STEADY ,THEN FLASHES AND GOES OUT. AT THE SAME TIME THE CHARGING LITE FLASHES INTERMITENTLYAND AS WELL THE GEARS SSEEM TO SLIP IN AND OUT. ALL THIS OCCURS SPORADICALLY. I HAVE JIGGLED THE SHIFT LEVER IN ALL GEARS,GONE OVER VERY BUMPY ROADS,BANGED ON THE DASH,JIGGLED THE KEYS IN THE IGNITION BUT NOTHING CAUSES THESE SYMTOMS TO OCCUR .I CANT DUPLICATE THE SYMTOMS. SO I HOPE YOU CAN HELP. THANX WILL I BE NOTIFIED THAT YOU HAVE RECEIVED MY QUESTION?