Hi guys this is my first post!!! Read a lot about people having problems with alarm modules and tailgate microswitch!? I have had repeated problems with my tailgate opening on it's own and each time it has happened it has been a few hours or the day after I have had the car washed by hand by guys using a pressure washer!!!! I now tell my local car wash to avoid spraying directly under n/s wheel arch and rear number plate lights since doing this I've had no further problems!!!!