help with key fob and hazard light
 

hi, i have a 96 maxima se and just yesterday the hazard lights stopped blinking when i lock the doors with the key fob...what gives?
the door still lock and unlock fine with the fob, but just the hazard light stopped blinking...note that hazard lights still works...
someone please help.
thanks!
p.s. i heard that there are 3 modes with the factory alarm: one is horn with locking, one is lights with locking, and one is nothing. does anyone know how to switch between the modes on the factory alarm? thx!