Wisconsin State Patrol Shares Tip to Prevent Frost on Inside of Windshield

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The Wisconsin State Patrol is offering a helpful tip to drivers who find themselves scraping frost off the inside of their vehicle's windows during the winter months. The key is to check if the 'recirculating air' button is turned on, as that can cause frost buildup on the inside of the windshield and windows. The solution is to simply turn off the recirculating air and use the normal defrosting options to clear up the frosty windows.

Why it matters

Frost on the inside of a vehicle's windshield and windows can severely impair visibility, creating a dangerous driving situation. This simple tip from the Wisconsin State Patrol can help drivers maintain clear views during the winter and avoid the hassle of having to scrape the inside of their windows.

The details

According to the Wisconsin State Patrol's Facebook post, if drivers are finding frost on the inside of their vehicle's windows, it's likely because the 'recirculating air' button is turned on. This recirculation can cause moisture to build up inside the car, leading to the frosty windows. The solution is to simply turn off the recirculation and use the normal defrosting options to clear the windows.

• The Wisconsin State Patrol shared this tip on Facebook on January 29, 2026.

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