The most common cause is a blown head gasket. Biggest problem is that it'll get worse.
That is the temperature at which the cooling fans are coming on, this is common for newer cars. It is not a problem, and should not cause you concern.
May have a bad water pump, otherwise make sure your coolant system has pressure. this can cause over heating.
If the coolant reservoir can not maintain the proper level of coolant, it is possible the engine could over heat when the level drops.
if the thermostat is not closing its not letting the coolant get warm enough to heat your vehicle. If it stays open the coolant just keeps circulating and not heating up.
Could be a problem with the thermostat housing or it's gasket, could be a problem with intake manifold gaskets, could be a problem with heater hoses or the fittings that screw into the manifold.
Leak in heater core
well basically you need to fill your coolant system up I'm not familiar with Chevy's but refer to the car manual
The most common cause of that is low coolant in the radiator. Check fluid level. If you don't find your problem there, then please ask your question again. THANK YOU.
Yes, if it is leaking and the coolant level is low.
Yes it sure can.
In any of the car the most cause of over heating is stuck or thermostant not opening to allow coolant circulation.
Check your coolant levels and make sure it is up to level and decent looking...Coolant (in this case) should be a nice Lime green. Engine Thermostat is probably the most likely cause of overheating...It should be replaced if you haven't already.