My alarm is set off repeatedly when vehicle is parked in a windy area. Does anyone know where the sensors are located? Rocking the vehicle does not set off the alarm. Are there other motion sensors? or does anyone know what could be setting it off?
Had the same problem,have a look under the bonnet and on the right hand side you will see a switch near to the coolant bottle,this is for the alarm when someone tampers with the bonnet,spray with TOOL-IN-CAN, end of problem. 
Many thanks, will try. The switch seems to be a sealed unit and difficult to get anything into it. may try just shorting out the contacts to confirm that this is the problem.