Design Flaw - wipers freeze up when driving in cold, wet conditions - Page 10 - Jeep Garage - Jeep Forum

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  #109  
Old 02-10-2011, 06:37 PM
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Re: Design Flaw - wipers freeze up when driving in cold, wet conditions

I can't belive that this serious defect is being mocked, blamed on poor wiper blades and has been referred to as a non-issue. This issue is 100% related to a design flaw in the heater logic module that causes the diverter valve to reduce air flow to the defrost and heater vents during cold weather - but only when the transmission is in drive or reverse, operation is normal while in park.

As the owner of a vehicle whose heater blower virtually shuts off when you place the transmission in gear I can attest to the very real existence of this problem. I have been forced pull over and place the vehicle in Park at the side of the road to allow the ice to clear from the windshield only to have it immediately freeze up again after placing the transmission in back in drive.

Forums like this are a big help to people and I appreciate the constructive input of the members. I have learned more about my heater problem by cruising the jeep forums than my service department could tell me after having my vehicle for four days.

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  #110  
Old 02-10-2011, 09:13 PM
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Re: Design Flaw - wipers freeze up when driving in cold, wet conditions

Interesting if the heater and wiper issues are from the same cause. But so far it doesn't seem like Chrysler is listening.
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  #111  
Old 01-14-2017, 04:20 PM
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Re: Design Flaw - wipers freeze up when driving in cold, wet conditions

The wipers may not be a design flaw, but certainly are a design error. Parking the wipers on the cold part of the windshield allows the snow from the heated part of the glass to run down to the cold part of the glass as water then freeze to ice, freezing the wipers to the glass. The wipers can not be positioned on the heated part of the glass because the arc angle is then too big and would hit the A pillar. Winter wipers may help, I am going to try that first and then maybe heated wiper arms.


The damn thing is dangerous in snowy conditions. It takes about 5 minutes to go from clear and working fine to wipers frozen to the glass.

I am a bit disappointed that Jeep didn't catch the wiper situation during cold weather testing. It only took me 1 trip to Breckenridge Co in a snow storm to see the wiper design isn't up to standard, and is downright dangerous!
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  #112  
Old 01-16-2017, 12:46 PM
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Re: Design Flaw - wipers freeze up when driving in cold, wet conditions

There is a heating element on the windshield of the new Cherokees, so the Engineers must have decided that was needed for that model.
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