Low coolant light stays on until system heats

Yes, the temperature gauge should normally stop in the middle, between the cold and hot points on the gauge. When the engine is cold the thermostat will be closed and will keep recirculating the coolant in the engine block until it warms up sufficiently. Then the temperature of the warm coolant will cause the thermostat to open the channel to the radiator to get rid of excess heat, which should stop the coolant from over heating. So the effect of the thermostat keeps the coolant at a fairly stable temperature. When the coolant runs low, it can't transfer enough heat to the radiator and the coolant and engine then over heats. Watch for radiator leaks under your car after you have been driving it. If the coolant goes low again fairly quickly you could have a leak in a hose or the radiator itself.

Sounds like it is low on coolant. Add coolant, drive the car, let it cool down, and then repeat the problem until the coolant level stays constant in the coolant tank. If it doesn't stay constant after a few tries, there may be a coolant leak inside the engine (blown head gasket or intake gaskets).

you need to replace thermostat and radiator cap.look under hood around engine compartment.look for a radiator cap near radiator,add 50/50 antifreeze and water to coolant system to bring up boiling point.pure water will cause engine run hotter because water evaporate away,remove radiator pour coolant in the radiator until coolant stop dropping in the radiator now some vechicle pour coolant in the coolant overflow jug,pour coolant until coolant level stop dropping and the coolant level stay at cold full mark.start engie let idle few minutes, watch coolant level in radiator if coolant start dropping add more coolant, when coolant level stop dropping put radiator cap back on let engine idle until both top radaitor hose and bottom coolant hose get warm turn off engine wait until it get cool then take a large rag slightly open radiator just a litle at a time to keep from getting scaled.once radiator remove add more coolant if low,put radiator cap back on start the engine let it idle watch the temp gauge if temperature gauge going hot zone stop engine wait until cool then add more coolant,keep doing this until engine stop overheating going into hot zone and coolant level stop dropping,make the coolant overflow jug coolant level stay at full cold mark, dont let jug run empty if so air will get in the coolant system causing engine to overheat.

YOU NEED TO ADD MORE COOLANT IN THE OVER FLOW JUG. YOUR OVER FLOW JUG IS WHERE YOU POUR COOLANT TO FILL UP RADIATOR. KEEP POURING COOLANT DOWN THE OVER FLOW JUG UNTIL COOLANT STOP DROPPING AND STAY AT THE FULL COLD MARK.KEEP EYE ON OVER FLOW JUG DONT LET RUN DRY BECAUSE AIR WILL BE PULLED IN THE COOLANT SYSTEM CAUSE A LOT OF ENGINE OVER HEATING PROBLEMS.

Low coolant,or water pump going bad.

Check the coolant level. If it is low, the heat won't work at idle, only when accelerating. If it gets even lower, it will overheat.

Your best bet is to start the car and let the water pump bleed it out for you. If you have a radiator cap, keep it off so you can check the coolant level. As the motor warms up, the level will drop. Add coolant until the level stops dropping or until the coolant starts to overflow. As long as the engine stays cool, there is no danger in damaging the motor.

The coolant will not come gushing out and get all over you, so don't worry.

No heat is often a symptom of low coolant, usually followed by overheat. There are other controls that regulate heater, but right now, re-fill the cooling system with engine running and heater on high, then check for leaks (coolant you lost went somewhere...you need to determine where) Low coolant will damage your engine. Take care of that first, then if heater still does not work, then do diagnosis on that. (if you loose the engine heat won't matter, will it!)

check for something stuck in the wheels and as for the coolant light get the car running and up to warm temp and start adding coolant to the reserviour bottle until it is up to hot level because there maybe a bubble in the line but also if might be a bad switch in the reservior bottle itself

NEVER open the radiator when the car (or any other engine) is running!! The radiator is part of the pressurized cooling system (under that cap is coolant at 15psi)

Correct way to check the coolant in the radiator, is wait until the engine is COLD, then remove the radiator cap and re-fill.