hi ville.
i had the same problem with mine as it used to stand quite alot and once the battery go flat then you have to get the thing reprogramed if you take it to a main dealer they will proberly charge you about £90+VAT. the place where i take mine charges £20 i guess you know where they just plug in the metre just up under the passenger footwell and to be honest it only takes about 5 mins to reprogram most 4x4 dealers have this machine so would go to one of them befor any main dealer. the guy i use is in coventry so that is not a lot of use for you but i guess some one will know someone in your area that will do it for you. that is if that is the problem.