Low coolant
 

Happy new year! 2017 LR Discovery Sport SE low coolant light illuminated. Checked reservoir and only a little coolant needed to be added. Notification would go off. No leaks initially. 2 weeks later and now it’s like as soon as I add coolant it comes right back out! When all of this first started i had heat.. now no heat at all. Blowing COLD air! I also noticed that when I would first start the truck the front and rear defrost would be on.. that never happened until now. Anyone have thoughts on what the issue could be ??

I am...
 

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A somewhat unusual and strange situation. Did you solve the problem, are there any other new symptoms that would help in the diagnosis?
What is the operating temperature of the vehicle in regular driving?
Maybe the problem is in the thermostat, the plastic housing is not a lucky one.