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2008 Escalade ESV AWD
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228 Posts
Discussion Starter #1
As the title states, when I press the AC/snowflake button on the display the snowflake flashes on the display for about 5 seconds then disappears. Does anyone know what may be the issue as I seem to remember that when the button is pressed it would stay on solid on the display...

Please inform.

Thanks,
John
 

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DHS, 2007 ESV
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241 Posts
Ambient temp is too cold for compressor to come on. Was it around 32 degrees F or colder outside when it did this?
 

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08 Escalade ESV awd, 05 Yukon Xl Denali awd, 06 SRX sold
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1,852 Posts
Tec80 said:
Ambient temp is too cold for compressor to come on. Was it around 32 degrees F or colder outside when it did this?
great observation
 

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It could also mean that you are a little low on refrigerant.
Mine would flash on slightly cooler days two summers ago (but still warm enough that it should come on).
Once I refilled it, the flashing stopped.
My buddy owns a garage and that's what he told me.
It's been fine ever since...
 

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2008 Escalade ESV AWD
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228 Posts
Discussion Starter #6
From the owners manual. Guess I should have done a Google search before posting... :thepan:

-John
----------------------------------------------------------------------------------------------


Air Conditioning
#
(Air Conditioning):
Press this button to turn the
air conditioning (A/C) compressor on and off. When
air conditioning is selected, an indicator light will come
on to let you know that the air conditioning has been
activated.
Pressing this button when the outside temperature is
too cool for air conditioning will make the air conditioning
indicator flash three times and then turn off indicating
the air conditioning mode is not available. If the air
conditioning is on and the outside temperature drops
below a temperature which is too cool for air
conditioning to be effective, the air conditioning light will
turn off to let you know the air conditioning mode has
been canceled.

On hot days, open the windows long enough to let hot
inside air escape. This helps to reduce the time it
takes for your vehicle to cool down. It also helps the
system to operate more efficiently.
The air conditioning system removes moisture from the
air, so you may sometimes notice a small amount of
water dripping underneath your vehicle while idling
or after turning off the engine. This is normal.
 

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2007 Escalade ESV
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364 Posts
one last thing to look at when it is time to use the A/C again is the belt that drives the compressor. Its a different belt than the serpentine that drives everything else. When this belt gets stretched, it will turn the compressor on then its goes off again without the right amount of tension. Its a very east and cheap belt to replace for the average DIY'er in the driveway.
 

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2008 Escalade ESV AWD
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228 Posts
Discussion Starter #8
one last thing to look at when it is time to use the A/C again is the belt that drives the compressor. Its a different belt than the serpentine that drives everything else. When this belt gets stretched, it will turn the compressor on then its goes off again without the right amount of tension. Its a very east and cheap belt to replace for the average DIY'er in the driveway.

Thank you for that suggestion hunterp27.

-John
 

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Cadillac
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48 Posts
I searched for this, I also have a blinking problem but its very intermittent and its usually for a short period of time. Well today it has not turned on at all and I'm on vacation in Las Vegas where its about 105 degrees! so is it the ambient sensor acting up or low on freon? when it does work the ac is very cold and the a/c clutch cycles normally, usually when its low on freon the clutch cycles quicker or more frequently.
is there a way to self check the hvac control unit?
 
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