You can also try waiting until the window is in direct sunlight as it may be sticking due to the rubber weather strip. This might release once it heats up a little. Mine were sticky the first few times I opened them. I would turn the knob to apply a constant firm pressure and they would pop loose. My dealer cautioned me during the PDI not to apply too much pressure as the mechanism can break.
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2016 Fuzion 414 Chrome
2016 Ford F450 Super Duty King Ranch
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