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Hello

I have a 2007 Tundra Crew Max SR5. It came with a cold weather package that included a wiper bed heater (works with the heated mirror and rear window heater switch). Right after I bought the truck the front cowl (plastic piece just below the windshield) broke and needed to be replaced because it fell in. The dealer replaced the part.

For three winters now I have wondered if the wiper bed heater works. I have thought nothing happens. Ice,frost and snow sits on the wiper area all the time.

How does this circuit work? Should it melt, frost, ice, light or heavy snow? How hot shouold it get? Is it in the windshield or in the cowl area?

thanks
 

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Hello

I have a 2007 Tundra Crew Max SR5. It came with a cold weather package that included a wiper bed heater (works with the heated mirror and rear window heater switch). Right after I bought the truck the front cowl (plastic piece just below the windshield) broke and needed to be replaced because it fell in. The dealer replaced the part.

For three winters now I have wondered if the wiper bed heater works. I have thought nothing happens. Ice,frost and snow sits on the wiper area all the time.

How does this circuit work? Should it melt, frost, ice, light or heavy snow? How hot shouold it get? Is it in the windshield or in the cowl area?

thanks
In built into the glass and only heats the area on the glass the wipers rests at. Not sure how hot but enough to melt ice so it helps the wipers from freezing to the glass.
 

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I could tell a HUGE difference when mine was turned on this winter. As a matter of fact, when I was driving I could tell when the timer had expired and turned off. When it was off I would get the ice sticking and subsequent streaking on the windshield. I couldn't feel the glass being any warmer, but it really worked!
 

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I tried mine once when there was a heavy frost on the truck, before the heater had made any impression on the frost the mirrors and the area of the windshield where the wipers park were melted off. Definately works against frost.
 
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