His car wouldn't start. Grabbed his spare key and it started right up. Is this normal for chipped keys to just stop working? To get another I know he has to go to the dealer but do they need to be programmed to the car or do they come programmed? (I've read different stories from my searches)
The one that stopped working was a black key with a light and his spare is a plain grey key (if that matters at all). He doesn't care about having a light either.
The key is used regularly (every weekday...i'm not sure what he does on the weekends! )
And putting the key in the ignition will charge the EWS module in the key?? Does it need to be in the on position?
The battery in the key is only for the light. The key doesn't need to be used everyday to work. The "spare gray" key, also called the valet key, will not open the trunk/glove box, only the doors. A brand new master key (black with a light) is around $100 from the dealer, I just got one 2 months ago from Mike@Maranello.
As to why it doesn't work - could be a bunch of different reasons but most likely the transponder (the chip inside the key) is dead. The dealer orders the new keys from Germany so it takes a while to arrive once ordered.