Hello. My wife and I just bought our son a 2008 Kia Sorento. We love the vehicle, but about a month ago the lights on the instrument cluster went out. All of the intruments are working, just no lights. We took it back to the dealer and they said it was a faulty cluster and that we needed to purchase a new one. I just need to know if there is a bulb that can be replaced or do we need to replace the whole cluster. The lights for N D R and so on are still working. Thanks in advance for any help.