I have the same problem and is in the dealers hoping for a fix, along with other probs which I have had since new a the car is now 2 years old, but I don't hold my breath as this is the 13th time it has been back over the last 2 years for left pull, dash rattle, vibrating gear stick, the infamous yo-yo, brake power loss when hot to mention a few and they have not been able to fix one of them yet
but I will let you know what happens as they say the new software they have will fix it
, we'll see