I took the delivery of my Linea this year in early Jan (Its almost a year now). Since last couple of weeks, I am observing that remote functions of the car key (especially locking the car), are not working consistently. Few times I had to use the Multi function car key manually to lock and unlock the doors. I am suspecting that the key battery is getting exhausted. My query is how long the car key battery last normally ? What is the experience of the fellow TFIans in this regard ?