Hello, I have the SLT-2, with nav and all the other goodies to go along with. It is starting to get colder here and i have noticed that there is a option in the nav screen under comfort for the option to have the seats heat up when using the command start. I have mine checked off. I have noticed that when starting my Terrain my seats dont heat up unless i physically press the heated seat button. Does anyone happen to have an explanation for this? Does the outside temp have to be below a certain degree in order for it to work? Thank you in advance for the replies... Hopefully we get some answers.