I have attempted to start my xkr 2001 with my spare key today. The car would not crank over and absolutely no response from the starter motor. The car works fine with my original key. I have not used the spare key for at least a year maybe longer.

Can anyone please advise as I only have one functional key?

Thanks.

 

Sounds like the car 'forgot' one of the keys configured to it?
I had that happen to a VW customer. He had the car 'towed' to me and the code was that the key was not configured.
I asked him to bring me another key.
He showed up and started the engine with the 'spare' key.
I told him to go to the dealer and have all the keys re-configured to the car.
He left angry and confused as to why the key stopped working?
$h!t happens!

 

Is there anyway of DIY reconfiguring on my xkr?