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Anti-pitch Feature on Power Windows Helps Safeguards Occupants

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car window

The express-up/down feature of power windows is super convenient when you’re trying to quickly welcome in or banish the elements, but with such power comes a potential chance of injury — pinched fingers or hands or potential damage to the vehicle if there’s an obstacle like a stone or ice chunk in the way.


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Thankfully, automakers have built-in a safety mechanism to help prevent any problems.

“When the window reaches the obstruction, it can cause bodily harm or the window can shatter if the obstruction is hard. To add a safety device to the express-up feature, car makers use an anti-pinch device. The window motor has a pressure sensor that detects window motor movement when the glass has stopped moving, even minutely. If this occurs, the window reverses direction and moves downward,” reports Your Mechanic writer Jason Unrau.

The module that controls the safety-focused feature is typically embedded into the driver’s door power window switch, according to Unrau.

If you notice any issue with your power windows, seek help from an automotive professional so as not to risk the safety of you or your passengers.

“If the vehicle loses battery power of the power windows require a repair, the power windows will not know their upper and lower limits. The window motor will need to be re-trained so it can learn the window travel limits,” Unrau reports.


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Unfortunately, you might not get much warning that your power windows are in trouble. In fact, their demise can come without warning according to Your Mechanic writer Valerie Johnston.

News Source: Your Mechanic,Your Mechanic