heat

Hi everyone, I'm new here and I'm hoping someone can point me in the right direction here because this issue has been driving me crazy. I've googled and googled and googled and I can't seem to find anything that matches what I'm experiencing. At any rate... I have a 2012 Xterra Pro-4X with...

The other day I tried to warm up my car after a snow/ice storm. I had it running for 15 minutes and the heat never got hot. I had to bring it back to the dealership today. Has anyone else had this problem ?