Some drivers use the same trick during very hot weather, hoping to keep the rubber from sticking to a scorching windshield. While this may reduce direct contact with hot glass, it does not fully protect the blades from heat, sunlight, or normal aging. Wiper rubber still wears down over time, even when the arms are lifted away from the windshield.
There are also a few risks to consider. A raised wiper arm can snap back unexpectedly and strike the glass hard enough to cause damage. Some newer vehicles also require the wipers to be placed in a special service position before they can be safely lifted, so forcing them upward can put unnecessary stress on the system.
Raising your wipers can be useful in certain conditions, especially before a freeze, but it should not replace basic maintenance. Check the blades regularly, clean the windshield, replace worn rubber when needed, and follow your vehicle manufacturer’s instructions. Clear visibility depends far more on proper care than on one simple parking habit.
