It is usually best to add the correct mix of antifreeze and water (usually 50/50). In a situation where there is no antifreeze available, yes, add water, then check the coolant later to see if the mix is adequate, and adjust the mix if necessary.
You may have air trapped in the cooling system. Remove rad cap, start engine and let it run for 30 minutes with the cap off while you add coolant as needed. That should do it unless you have a cooling system leak.
Low on coolant or a sticky thermostat, replace it.
Rear defrost has nothing to do with the engine. Possible causes, low in coolant, faulty thermostat, air lock in the coolant system, faulty temp. switch, ( manual or electronic?) inside car. Did you replace anything? Add any antifreeze? Change any hoses?
you can't reset it, fill your coolant up full, both rad and overflow. the light will go out. if it is still on when everything is full, then your coolant sensor is broken or unplugged. if you light goes off then comes on again and your coolant is low, then you have a leak. if you have a 3400 engine in your lumina common leaks are intake gaskets, waterpumps, and head gaskets.
I'm guessing, but the coolant level sensor is probably in the overflow bottle and it is low. This is so you notice it before the radiator itself is low.
Coolant for the 98 Deville is added into the coolant overflow bottle. The side of the bottle should have low and high coolant markings.
You need to add coolant to your radiator or resivoir. You should add a mixture of ant-freeze and water, but if you need to, you can just add water. Under the hood there should be a plastic "container" that you add the coolant to. If this is completely empty, fill it to the "full" level (it should be marked) and then remove the radiator cap and check the level there as well. If the radiator is low top it off. NOTE: make sure the engine is cool before you remove the radiator cap. If you are not sure let it sit 2-3 hours before you remove the cap.
When you add engine coolant to a 2003 Jeep Grand Cherokee because the low coolant indicator has come on, you should add to the reserve tank and the radiator if they are low. Sometimes, just the reserve tank needs filled.
Add coolant to the reservoir. If the low coolant light still stays on, replace the low coolant sensor.
it will say low coolant and it means you need to add a mix of 50/50 coolant and water to the overflow.
If you are talking about the low coolant light then it is just low of coolant. Add coolant to the recovery tank. If you are talking about the coolant temperature light, then the engine is overheating. You may need to have the cooling system serviced. Drain the coolant and flush the system. Install a new thermostat, and add a 50/50 mix of antifreeze and distilled water.
Mix pure water (Distilled is best and cheapest.) with antifreeze in equal quantities and add directly to the coolant reservoir. Top off till a little over the max line to ensure you don't get low coolant light.
fill the radiator to the top with 50/50 water and antafrezz
It means that you either have a wire loose on the reservor or need to add some coolant to it. It should be located on the right front fender. There is a wire plug on the bottom, if it is loose it will show that you need some coolant. Yeah, a water down symbol would probably indicate low coolant? Anyway, gotta love the days when GM used lights that actually said "coolant low" instead of stupid symbols.
If you are talking about the low coolant light then it is just low of coolant. If you are talking about the coolant temperature light, then the engine is overheating. This car is 7 years old. Have the cooling system serviced. Drain the coolant and flush the system. Install a new thermostat, and add a 50/50 mix of antifreeze and distilled water.
Low engine coolant or ineffective coolant. Add or replace anti freeze
Your coolant is low. Add some antifreeze to the reservoir under your hood.