No headlight blink when pressing keyfob

This morning when I press my keyfob the headlights no longer blink... Yet the DRL's and normal headlights and high beams seem to work... I checked the Vehicle Customization Settings thru the radio and it is set to blink the headlights and chirp the horn when pressing the keyfob... I get the horn chirp but no headlight blink... The Backup lights blink, but not the headlights... ANy ideas what might be wrong??