03 Sentra Shifter light out
 

I just recently got a used 03 Sentra. The car is great, but there's one tiny problem. The shifter lights (where is says PRNDL) don't illuminate. I don't know what to do!

How do I go about getting this fixed? If I have to replace the bulb, what kind of bulb should I buy and how do I make the replacement?

Please help! My parents won't let me drive at night unless this gets resolved. Thanks!