it may be your LED bulbs that the car is having issues with...by the way, when you turn your Fogs on those aren't your DRLs working but your actual headlights (you can find this out if you check your taillights as they will be illuminated too)...your headlights (low beams) and DRLs occupy the same location...unless the 2015 is mechanically different than the 2013...
good luck with your Malibu
good luck with your Malibu
