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Either a break in power to the rear (i.e. fuse, relay, cut wire etc) or check the contacts on the rear window. They are prone to dislodge where they connect to the window.

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16y ago
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11y ago

You have a bad ground on the right rear pillar post! Easy fix . run new grounds.

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Q: What would make rear defrost stop working on 02 trailblazer?
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