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Anybody experience the outside thermometer not staying accurate?? Mine was off about 4 degrees, and I was able to set it (as it has about a 6 degree range of adjustment). But today I noticed that it's off about 14 degrees. WTH? Anyone with relevant info, I would sure appreciate the input before taking it to the dealer.
 

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4 degrees may or may not be normal depending on where you drive but a 14 degrees difference seems wrong. Maybe something is wrong with the temperature sensor? Last time I've heard of this was with the 8th gen civic.
 

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It's located in the grille. So it really is very dependent on movement creating airflow past the sensor to be accurate. If, say, you are stuck in traffic and pointing into the sun, it could be wildly off from the sun's heat as well as the heat coming off the car's own radiators.
 

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Very true.. sometimes they have little markers on things to check and see if they're moved or not. One of the things my dealership used to do was put your lock nuts directly opposite the valve stem, so if the car came in and it wasn't in that location, they knew that you took the wheels off for something at some point
 

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The outside temperature reading on my 9th Gen. was off by two degrees from the factory. I re-calibrated it using the menu on the iMID. I let the car sit in the garage overnight and then compared the ambient temperature in there with what the car showed. Made the adjustment so the car showed the same as the garage. I note that it can take several minutes for the system to get to the correct outside temperature once the car is moving. Often, the displayed temperature will be a few degrees from what signs say along the way. After three years, it is holding true to my original adjustment.
 
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Your tablet and phone were likely getting temperature from a weather service since their own sensors are much too influenced by the device's own heat. The Caddy may have the sensor in a better--more ventilated--position than the Civic. You have to be moving or the car cold and in the shade for the Civic to have a prayer of being right.
 
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