Heads up, for those of us in colder climes with the factory installed block heater. Had my TI in for semi annual service at another local dealership 2 weeks ago (this one seems to care). During the routine service, they actually checked functionality of the block heater. Must have been a quick cct test with a meter. Turns out it didn't/doesn't work and was likely delivered that way. So it's in right now for diagnosis and possible replacement (and good timing; it's friggin cold here this week). So for possibly the last 2 winters, I've been plugging it in and not getting benefit, other than saving on my electricity bill!