"Key detected in vehicle" Error displayed while car is driving?

Hello all,

Beginning about three days ago, my ct has been giving me "key detected in vehicle" while the car is moving. This started to happen after the temperatures here have gotten to approximately minus 30 Celsius and mainly happen after the car detects slippage in the snow. I'm thinking this might be a problem due to the extreme cold temperatures. Also the problem seems to have worsened as when the message is being displayed, my doors will unlock themselves and the dash light will flash on and off.

Has anyone else had this problem or have any ideas? I called the dealers and they said it might be the battery getting low, but to me it doesn't seem like the cause because it only occurs after the tires slip and in very cold weather.