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2020 Silverado 2500 "Idle vehicle to cool engine" message

Liz Mosbey
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Liz Mosbey New Member

Liz Mosbey

Posted
Posted

What would cause the "Idle vehicle to Cool Engine" message to appear?  All of my gauges reflect they are within normal range.  It is a 2020 Silverado 2500 HD with 25,000 miles on it.

Random Enthusiast

Random

Posted
Posted

When I had previously read through my trucks manuals, it mentioned after a heavy towing event, it might need to idle for a bit to cool off the engine and would auto start if it needed to in order to cool off the engine. Guessing your computer is thinking some part of your engine needs additional cooling before shutting down.

  • 1 year later...
WRuby New Member

WRuby

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Posted

Did you ever find a solution for this Error message?  We are also getting it on a 3500 2020 Silverado.  In town driving....and no towing.....

  • 1 year later...
Another JR Senior Enthusiast

Another JR

Posted
Posted
9 hours ago, Jpbski said:

I’m getting the same code.  It’s after a 20 minute drive and not towing. Weird thing is it’s 20 degrees.  

Are your radiator shutters stuck closed?  They could  have a bunch of ice preventing opening. They would be closed at 20F at starting but would open once the truck warms up. 

Another JR Senior Enthusiast

Another JR

Posted
Posted
14 hours ago, Jpbski said:

What are the radiator shutters?  The front end is wide open

I can’t tell from your message whether you have a gas or diesel engine. On the gas engine at least, if you don’t have the snow plow package, there are rotating horizontal shutters in front of most of the radiator, kind of like a louvered blind. They are there to slightly improve the aerodynamics and gas mileage at very low temperatures where all that radiator area isn’t needed. I don’t know if the diesel has the same shutters. 
 

https://www.gmpartsdirect.com/oem-parts/gm-front-bumper-shutter-replaced-87830732-84735801?c=bD0xJm49U2VhcmNoIFJlc3VsdHMmYT1nbWMmbz1zaWVycmEtMzUwMC1oZCZ5PTIwMjEmdD1zbHQmZT02LTZsLXY4LWdhcw%3D%3D

Crazy Canuck Enthusiast

Crazy Canuck

Posted
Posted

The diesels do have them as well with some exceptions.  I am not sure about the GMs but on Fords they will not fully close below freezing to prevent...freezing.  In the 3 years I have owned GM HDs I have never thought to look for that, perhaps this weekend.

  • 4 weeks later...
pcmem Enthusiast

pcmem

Posted
Posted

If you have the snowplow prep package it deletes the shutters and adds what they now call the winter front. They used to trim and form the winter fronts for the grill and bumper but now you just get a piece of black vinyl that hooks into the grill. 🙄

gemarsh Senior Enthusiast

gemarsh

Posted
Posted
4 hours ago, pcmem said:

...

They used to trim and form the winter fronts for the grill and bumper but now you just get a piece of black vinyl that hooks into the grill. 🙄

 

It's a couple of steps up from bungy straps and cardboard!

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