Broken rear window defroster lines are a cheap fix with conductive paint. Repair them instead of replacing the glass.
electrical
🚗 GMC Sierra 1500
Easy
How to Fix GMC Sierra Rear Window Defroster
Red Rocket
·
August 7, 2026
·
⏱ 1 hour
·
2014-2024 GMC Sierra 1500
0
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Step-by-Step Instructions
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1
Test the defroster grid with a multimeter.
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2
Locate the broken grid line.
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3
Apply conductive repair paint.
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4
Allow to cure and retest.
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5
Verify the defroster works.
Tools & Parts Needed
- 🔧 Defroster grid repair kit, Multimeter, Conductive paint
Frequently Asked Questions
How long does this fix take?
1 hour
Do I need special tools?
Yes — see the Tools & Parts list above.
Is this covered under warranty?
Check your vehicle warranty. Some repairs may be covered, especially if the issue is a known defect.
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