I inadvertently set off the alarm returning to my Elise tonight. After listening it honk for a while, it finally quieted down but refused to unlock the doors. Having read all these horror stories, I knew I was in trouble and could not get in the car, let alone start it.
But !! i had stashed a spare 2032 coin battery in the trunk just-in-case the remote died.
Inserted new battery into remote fob... no luck
Called wife for spare key and jumper cable. Maybe the car battery or the remote were dead. Wife comes to rescue.
No luck with second remote nor jumper cable.
Called for flatbed tow. Waited 1.5 hours in dark
Tow truck arrives and hooks up cables to battery. Still no luck.
Tow driver jimmies open the door lock just as I figure out that maybe the alarm was dead because of blown fuse. Fortunately, Lotus toolkit has allen key to open front panel. Alarm fuse #11 is blown! There are spare fuses in the center row of the fuse block...
Car starts!! 3 hours killed over a blown fuse
I don't know if I could have gotten into the car without the tow operator's jimmy because it didn't seem to unlock after swapping fuses but everything is copacetic now.
So -- in your lockable trunk, which needs no electricity to open -- carry
1) spare 2032 remote battery
2) allen key to open fuse panel
3) maybe some crude tool to jimmy the door lock
4) alarm code and instructions to re-program and re-synch
Argghhh. And it's not even Lucas Electricals.