NVLexus99

I have a 99 RX 300. The rear interior light, on the roof of the storage compartment, appears to be burned out. Can someone tell me how to replace the bulb(s)? I see a tiny slot on the edge of the plastic lens but thought I would ask advice before trying to pry it (and break it, only to find that isn't how it's done). Also, the "rear light out" indicator light on the instrument cluster has been coming on intermittently. Could this be related to the problem with my interior light? I assumed the indicator was telling me there was a problem with the tail lights (but they all work).