Has some of you may know, I had one of my keys replaced under warranty about 1 1/2 months ago. While my car was at the dealer for one of my many Nav problem visits, the dealer called and asked me to bring by my spare key. Apparently the key that I left with the car stopped working. When I got there with the spare key, the one that I had left with them started working again. When they tried to start the car, all of the warning light would come on and the speedo and Tach needles would move but it would not start. The key would also not Lock or unlock the doors or open the trunk. The other odd thing is, the key started working again on it's own. They did replace the key batteries, but it did not help.
So they ordered me a new key, to replace the on that I had left with the car. Since then every thing was fine, until yesterday, I took my spar key (not the one that was replaced) and tried to start the car. The same problem different key.
So the dealer has ordered a new 2nd key for me. We did ask Lotus the first time to replace the key transmuter/receiver in the car, they said no.
So my fear is, now when I go on a drive I need to take both keys and hope one works. The dealer did say that Lotus told them that this a known problem.
I did do a search for thread on this subject, but it came up empty.