Rear Quarter Window Rollers / Channel
Short answer: A rear quarter window that needs help usually has a worn or broken roller — there are three, and the middle one is the usual culprit — or a track that’s out of position. Replace the roller (available from a Pontiac dealer or the catalog companies).
Access: pull the back seat, then the side panels; there’s an access plate to reach the mechanism, though you may need to remove the channel to get to everything. It’s fairly obvious once you’re in there.
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Content last modified: June 13, 2026 at 10:06 am
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