WHAT WOULD CAUSE THE SIDE CURTAIN AIRBAGS TO DEPLOY??FOR NO APPARENT REASON... on 2009 Mercury Mariner

SIDE CURTAIN AIRBAGS DEPLOYED.VEHICLE WAS NOT INVOLVED IN AN ACCIDENT OR ANYTHING.

Asked by for the 2009 Mercury Mariner
1 answer
failure some where in circuit. bring to dealership for tech. advise. run the VIN# to find out if any recalls on this item.