Changed termustate and flushed radiator and toped it off still showin lowcollant and blowin cold are out heat

If you have a low coolant light, this would be a bad sensor, either at the radiator, or the coolant reservoir. need to replace it. as for the heater, well there are a couple of things to check. first,start the car, and let it warm up. now the engine is at running temperature, now turn on the heater(trust me), and let it run for about 2 minute. feel the 2 lines going to the heater core( they are on the passenger side going to the firewall) is the one coming from the engine getting warm, or hot. If not, there is a valve that allows hot coolant to the heater core. change this valve(they do go bad, or just get stuck), this is an easy fix. If the line is getting warm or hot, the problem will be the heater core, and will need to be replaced. hope this helps and please rate this, helpful to you or not

May be heater core or flapper door not opening from heat to AC