Dashboard light on temperature not working or broken. What to do?

Yeah as the title states, just a problem with the light and was wondering what I can do about it. Sorry if this seems really simple as I am only new to this ahaha

Thanks

https://p.twimg.com/Aq9jPAfCIAACa70.jpg

one of your bulbs is probably blown if so just replace it or if you have just put leds in then check the polarity,

this video should help to remove the cluster and replace the bulb, it looks to be the same model as yours from what i can tell,
http://www.youtube.com/watch?v=tYymaVHD2Dg

Wow thank you that was very helpful! Cheers