heater will only work when start with command start

1995 GMC SIERRA
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SUE FAMILTON
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I can have heat if I start truck with remote in neutral and don't use brakes?
Dec 5, 2011 at 7:45 PM
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JACOBANDNICKOLAS
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That is an interesting one. I think I would start by checking to make sure there isn't a problem with the factory alarm system. If it is good, then I would check the ignition switch itself.
Dec 5, 2011 at 8:53 PM
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SUE FAMILTON
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already checked it and the remote starts truck fine the manufacture says that it is working fine that it is a truck problem.
can when truck is running if i use comand start again it will start up the heat till truck breakes are applied.
Dec 5, 2011 at 11:16 PM
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SATURNTECH9
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Just to add to this one are you saying the inside blower motor works fine and when you hit the brakes the blower motor shuts off?If thats the case i would say the brake lights have a bad ground and when you step on the brakes its some how stealing the ground from the blower motor.
Dec 6, 2011 at 6:22 AM
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SUE FAMILTON
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yes the blower works as long as I start truck with the comand start but as soon as I step on break to put truck in gear the blower stops working.
Dec 6, 2011 at 10:10 PM
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SATURNTECH9
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Then i would check the ground to the brake lights and the blower motor.
Dec 6, 2011 at 10:23 PM
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GREATESTALIVEYAHOOCA
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Hi, did you find a solution to this? I am having the same problem and cant afford to pay someone a fortune just to find out whats wrong.
Sep 17, 2012 at 11:10 AM
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