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For the past few days - the active handling light comes on and then the read out says "Active Handling Warming Up" then after a few minutes the light goes off and the read out says, "Warm Up Complete"
It doesn't do it everytime-but it has a few times recently.
Normal if you don't drive in a straight line for a 100 ft or so at a speed greater than 6 mph which allows the system to calibrate. The system has to calibrate so it knows where straight ahead is.
Check your codes as well. The IAT sensor is used to determine if the outside temps are cold which the EBCM uses in it's calibration routine, aside from being in a straight line. If you have any IAT related codes that may be contributing to the delayed warm up especially at this time of the year.