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Rear defroster / defogger turns off to soon

10067 Views 17 Replies 8 Participants Last post by  Fernando Enciso Contreras
Hello all,

Has anyone experienced their rear defroster / defogger turns off before the frost has been removed? The manual states that it'll run for about 10 mins, then turn off on its own. If you turn it on again, it says it will stay on for only 5 mins. I've timed mine and it only stays on for 6 mins the FIRST time and 3 mins afterwards. Does anyone know if their is a TSB or a way to keep the rear defroster on for longer? Wish they would leave me to control that function, not the computer. Rrr. Very frustrating on the cold days (Ya Canada) when I can't see out the back.
Thanks!
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Will fog up in hurry with that recir door set to interior. Only leave it closed long enough so the car will heat up sooner. After this, open to the exterior dry cold air.

Ha, even more buttons to push.
 

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I just took a look on my digital copy of the owners manual (2013) and it doesn't say anything about the defogger staying on continuously when vehicle speed is above 70km/h. Doesn't stay on anyway.

I do scrape the ice off my windows, but they fog from the inside. I never use the recirculate button, always have it on fresh air. It is annoying to constantly have to press the button every 3mins, as for some reason my car doesn't stay on for the 10mins for first time, 5 mins afterwards. Still too short in my opinion.

Thanks for the feedback everyone.
Beginning to suspect heater core leaks. One thing that really fogged up my windows on a cold winter day, was hauling three German Shepherd dogs in the rear seat, they really fogged up the windows. Only option was to crack open a window.

A vehicle requires at least six complete air changes per minute. What I really found weird in the Cruze is the lack of an external vent at the door jams at the rear. If you turn your blower motor at maximum and at the outside of the Cruze, can feel a lot of air escaping between the front and rear windows. And the weather strip is on the inside of the doors rather than on the outside.

Those door jams in the Cruze sure get dirty. Did have problems with my 2012 with excessive wind noise from the driver's side window, and took quite an effort to get my dealer to change it. Read some were trying to cure it with a caulking gun. The wrong way, did want to inspect the new weather strip before they installed it for the proper vents and gap. Cured both problems of fog and wind noise.

Could be your problem. Another is a plugged cabin filter, air in, air out kind of thing. Never even noticed the lack of a door jam vent the the rear door jam, been doing this since the 50's. Nor did I notice the lack of door sills.
 

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Not having this problem with my 2012 2LT, after the engine warms up and even in -28*F weather. Normally use the floor vents and the windows stay perfectly clear. But no longer hauling three German Shepherds in the rear seat.

Replaced those with a wife, she doesn't steam up the windows as much. Never hauled five adult passengers yet, but two tiny little grandkids. They don't steam up with windows either.

Still wonder about your air exchange rates.
 
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