The A/C system has nothing to do with heat. Totaly seperate system.
Most likely because you are requesting heat in the AUTO mode. In the AUTO mode the A/C compressor is enabled anytime the ambient air temp is above about 35 degrees. Use the ECON mode or A/C OFF (not sure how your car is configured) and you won't get the Low Refrigerent message.92_STS said:why does it tell me I have "very low refrigirant" and then "A/C compressor off" when I run the heat?
So your saying that no matter what the only air that comes out of the top vents will be A/C or regular vent air? All Heat comes out the bottom? THAT SUCKS !