I just had the same thing happen to me. I was out of town last week for a couple days and when I went to turn my XT on after sitting outside in 70 degree weather, @ 49k miles the CEL and traction control lights came on solid, with the Cruise control blinking. I guess I'll be going up to Autozone at lunch to see what the problem is
MY '07 is past factory warranty, but I purchased the Subaru extended warranty till 92k miles. I haven't had to use it yet, but if I get the same P0463 code, would correcting it be covered?