I've had my 2014 Premium for three months now and I absolutely love this car. It's stealthy and fast, exactly what I was looking for. And it looks like nothing else on the road from the front. That being said the other day I turned on the seat heater to give my lower back a little love. After about ten minutes and feeling maybe a little bit of heat I thought they are not working so good. Passenger seat the same. Just enough heat to knock the morning chill from the leather. But not much more. By comparison in my Avalanche if you accidentally turn one on you know it pretty quickly. On the high setting the truck's heaters are HOT. Could anyone please share how yours work? Thanks.