the pod just pulls forward,you might need to get a plastic spatula or something similar between it and the dash,then change all the little 286 bulbs in there holders,you can get long life bulbs but i can't remember the bulb number,i think there is about 10 bulbs
First find out if they are replacable at all. Many cars now have non replacable LEDs for this so it could be a different type of fault - especially if they have all gone off