Heat not coming on with remote start

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roshambo14

TYF Newbie
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Oct 27, 2020
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I have a 2012 LTZ Tahoe, and since it's turned cold a few mornings this fall already I have used remote start. The problem is that it blows air, but its cold air. When I put the key in and turn it on, the engine show's its up to temp. I drive away and a block later, warm air is coming out of the vents. I've checked to make sure its set to a temperature that is warm. I have it set at 72. It worked last winter. Any ideas on what could possibly be wrong? Thanks in advance.
 

petethepug

Michael
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The desired a/c or heat has to be running before the truck is turned off. The heated seats have a threshold that they turn on at or the same thing of turning them on before you go turn off the truck.
 

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