taken from my owners manual:
"Your vehicle may have a remote starting feature.
This feature allows you to start the engine
from outside of the vehicle. It may also start up
the vehicle’s heating or air conditioning systems
and rear window defogger. Normal operation of the
system will return after the key is turned to the
RUN position.
If your vehicle has an automatic climate control
system, during remote start, the climate control
system will default to a heating mode during colder
outside temperatures and a cooling mode during
warmer outside temperatures. If your vehicle
does not have an automatic climate control
system, during remote start the climate control
system will turn on at the setting the vehicle was
set to when the vehicle was last turned off."
I think the magic number is 55 degrees ambient temp. However, the a/c compressor will kick on during all temps ive noticed...not sure why.