Question about Cadillac DeVille

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Im receiving a check coolant level on my 2000 cadillac deville, coolant level is fine. is there any way to reset this warning light?

Posted by hamiltonscad on

  • 2 more comments 
  • Anonymous Jan 27, 2009

    check coolant light but plenty

  • Anonymous Feb 01, 2009

    Same problem, exactly

  • Anonymous Mar 27, 2014

    says coolant level low,check engine light is on for some type of heat sensor

  • Anonymous Mar 29, 2014




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James Bradburn

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No the light is linked to a sensor. There is a coolent sensor that tells you that the level is low. It sounds like the sensor has gone bad. And the sensor is located in the coolent tank. If it is bad from my understanding you have to replace the whole tank. But take a paper clip with the engine off and disconnect the wire harness from the sensor and jump the wires and see if the light goes off.

Posted on Jan 20, 2009

  • Chad Ellis
    Chad Ellis Mar 06, 2013

    Where is the wiring harness for the sensor?



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2000 cadillac deville is overheating, replaced thermostat: water pump radiator had head gaskets fixed it's saying check coolant level and it spews coolant from the overflow tank cap when hot thoughts?

Two cooling fans controlled by three relay's . If only one fan is working ,that could be a problem .
Coolant Level Sensor Description
The coolant level sensor monitors the coolant level in the cooling system and indicates if the coolant is low. This sensor is located at the base of the radiator surge tank and is not serviceable.
The IPC receives a discrete input from the engine coolant level switch. The engine coolant level switch is normally closed. When the engine coolant is low, the engine coolant level switch opens. When the IPC receives an open signal from the engine coolant level switch, the IPC displays the message on the DIC.

Relay Driven Dual Cooling Fan Diagnostics There are using a pontiac , by your cadillac is the same .

Mar 24, 2017 | 2000 Cadillac DeVille

1 Answer

How do i reset the check coolant level

on my 2004 deville i hade a ( check coolant level ) i filled my coolant but the warning did not go away ? i ckecked my level again , and it was low again ! i filled it again and the warning still did not go away !! i checked it again but it was fine . the next day i had no more warning what im trying to say is if you have a check coolant you better check ypur coolant even if you just filled it and for some reason my cadillac needs a few days for things to reset . however on another car that i had which was not a cadillac ( so it dosent mater what it was , ha ha ) there was a screw in sencer about half way down , on the side of the radeator with 2 wires going to it . i unscrewd it and put another one in .

Mar 29, 2012 | 2004 Cadillac Deville

1 Answer

How to get the check coolant light 2000 Cadilac Deville

You may have already done this, but, first make sure your coolant level is up to, but NOT over, the full line on the coolant reservior, ( plastic bottle ), if the level is good you may have to replace the coolant sensor.

I hope this helps.

Jan 28, 2011 | 2000 Cadillac DeVille

1 Answer

Have an 02 Cadillac Deville with 32k miles on it. Had a Cadillac dealer flush coolant and replace, and now every time I start the car the DIC reads "Check Coolant Level". Coolant level is fine. Now the...

Why replace the radiator it's just a bad sensor. Get the Haynes repair manual on your vehicle look up the water level sensor testing and replacement steps. The sensor probably cost around $30 and I doubt if it takes more than 30 minutes to replace.

Aug 08, 2010 | 2002 Cadillac Deville

1 Answer

AC and blower sometimes does not come on immediately, Info center reads check coolant but coolant level is fine. Any relationship between the 2 issues??? 2001 cadillac deville

No coolant has to do with heat. freon has to do with ac. Now when you said your ac AND blower doesnt come on right away are you saying it does this ONLY when its on ac or when its on heat too. I would first change out your coolant level sensor or add coolant (which you said was fine) and see what happens. but im sure they are not in relation as the blower motor is on its own circuit

May 04, 2010 | 2001 Cadillac DeVille

3 Answers

2000 cadillac deville check coolant message comes on but coolant

the sensor in the anti freeze bottle some times it sticks some times a light tap will loosen it up but some times you need to replace it

Apr 05, 2009 | 2001 Cadillac DeVille

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