Within a week my new XC90 is having electrical problems. The A/C fan is blowing

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when the car is completely turned off. I'll shut the car off go do my errand then when I get back in the fan is blowing before I even touch the ignition. Also, noticed sometimes when I start the car the blind spot indicator flashes weirdly. This is our 2nd XC90. We bought the 2004 model with all the transmission problems! Hope this is not another problem car!