Key Battery low
2 Answers
It was the indication for the battery in the key (the car key has a battery inside) was low. I bought a new one - CR2032 H 3v- and fixed it :-)
It was an indication that the battery inside the car key was low. I opened the box of the key and changed it (CR2032 H 3v) and it was fine. Just a question of unfamiliarity :-)