Have a 2015 Malibu and the other day after driving for half an hour I still had no heat It was just blowing cold air and then I started smelling an electrical smell. Dealership says that they can not duplicate it. And now the heater works they say. They told me that the computer says nothing is wrong with it. they said maybe it’s the resistor but did not check it!! Asked us what we would like them to do!! I am not making this up my boyfriend also smelled it both in the cabin and under the hood. Anyone else have the same issue.