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2012 Tahoe Detached Rear Defroster Wire

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Old April 3rd, 2022, 10:34 AM
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Default 2012 Tahoe Detached Rear Defroster Wire


Dangling coiled rear window defroster wire.

Close-up in my hand.
How do I re-attach? Thanks in advance, guys.
Old April 3rd, 2022, 10:56 AM
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Check out this thread
https://chevroletforum.com/forum/tah...r+defrost+wire
Old April 4th, 2022, 9:16 AM
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This happened on our 2005 Yukon, and I fixed it. I bought the SPECIAL Loctite 2-part conductive epoxy repair kit online for this, could not find it ANYWHERE in town (and I worked for a sister company of Loctite). First stretch the coiled wire a little (this is a GM design flaw, too-tight coil puts too much strain on the tab when the window-only is opened). After fixing, I told Mrs. Cusser to ONLY open the entire hatch, never just the window portion.

If you don't do this repair correctly as stated above - it won't be successful. Note that the product for fixing the defroster grid itself is a completely different product.
And other brands besides GM also have the little tab break off.
Old April 4th, 2022, 11:56 AM
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Default 2012 Tahoe Detached Rear Defroster Wire

Thanks rednucleus and cusser. I am new to auto electronics, so before reattaching, what is the best way to check amps and volts in the circuit?
I have a multimeter.
Old April 4th, 2022, 5:41 PM
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Originally Posted by trund
Thanks rednucleus and cusser. I am new to auto electronics, so before reattaching, what is the best way to check amps and volts in the circuit?
I have a multimeter.
Great question, bu not for me. I don't have a wiring diagram, so I don't know which wire would have positive voltage when the defroster switch is pushed.
Old April 4th, 2022, 10:07 PM
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Don't think the test is necessaary; perform the repair; should solve your problem.
Old April 5th, 2022, 9:01 AM
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I used the tab repair kit on my '11. It lasted a few years and came off again. This time I heated up the tab and melted soldier to it and stuck it on hot, so it melted to the grid. Then I used the conductive grid repair paint around the tab to fully ''connect'' the tab to the grid. It's been a year now and many, many remote starts over the winter as the rear window always comes on when remote started and so far, so good.
Old April 6th, 2022, 10:07 PM
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The important part before you reattach the tab to the glass is to stretch the coil out considerably so that it is not really tight when the window is raised. The coiled cord should be very slack when the window is closed.
Old April 7th, 2022, 7:57 AM
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Originally Posted by 73shark
The important part before you reattach the tab to the glass is to stretch the coil out considerably so that it is not really tight when the window is raised. The coiled cord should be very slack when the window is closed.
I stated that in Post #3 in this thread.
Old April 7th, 2022, 10:09 AM
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I realize that. But I thought since it's really the critical part of the repair job that it bore repeating. 🙂


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