The DRIVE light on the instrument panel of my 97 Camry has burned out. Is there a replacement bulb? How do I change it?

Remove the 2 screws above the cluster bezel, pull out bezel, remove 4 screws holding in the cluster, disconnect the 4 connectors going to the instrument cluster.
You can use one of the bulbs below it like for low gear, or bring the bulb to dealer to match it up.
Even on the parts computer, they still won't get you the right bulb unless you show it to them. Trust me on that one.