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Discussion Starter #1
05 trailblazer Lt heated seat's..power windows... with the key in the on position the windows go down.With the motor idling the seats heat up the light indicator on the driver door for heated seat flashes in its 3 modes..the windows might go down with the button held down.But comes back up automatically and not smooth elther.Thy jitter coming up and I hear a clicking noise in both front door switches
 

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2004 gmc envoy_slt
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2,332 Posts
Sounds like you have a defective Drivers Door Module. These modules are prone to getting water in them and then failing. I think there was a TSB or a recall for these on later model years.
 

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On....
In...
Under...
Above...
Next to...
Beside...
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Abaft...
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Abeam...
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The switch panel?

I don't know for whom to be embarrassed the most..... the engineer who designed it or the marketing engineer who sold a bunch of switches as a module......
 

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Chevy Trailblazer 2008 LTZ (4.2L)
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This is not just a panel with buttons, it is a whole block with microcircuits that also has its own microgram for firmware.
 
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