It's outrageous that Kia can get away with this. A car with inbuilt satnav that doesn't work after dark is a broken car and you should be able to take it back to the dealer for a refund. It works fine on mine (I haven't updated the software since November) so we all know it can work. 'Complex elector magnetic issue'! Rubbish! Duff software developers and a lack in interest in the customer, more like.