My gear shifter backlighting doesn't always work. How can I resolve this issue.

What is your question?

When I first purchased the car, the backlighting always worked. Then after the first year, it would periodically go out at random times. Currently, it is not lit more often than is lit. All the other interior lighting works(meaning the dashboard and dome lights). Is it a short somewhere? If so, how to I fix it? Thanks!