Sunday night in the very cold the alarm went off 4 times due to no reason.

I put it down to the cold and maybe slightly low battery due to short trips with lights and heaters etc. Car has now gone for a run to charge the battery.

Alarm has not gone off since, however the info light is lit on the dash when the car is locked. It is not on when the car is being driven.

Handbook tells me that this means there is a message, but using the controls on the steering wheel when I go to the message screen tells me there is no message. No other dash lights are on.

Anyone got any ideas.