I asked my local Toyota dealer to find me the green covers for the PN 90981-11014 bulbs but, because Toyota has changed bulbs several times and because the cover PN descriptions don't indicate which bulbs they fit, he was not able to look up the correct green cover for the replacement bulb. Since my daughter has some surplus green nail polish, I decided to paint the bulbs instead. The following photo shows the old bulbs (with & without cover) and the painted bulbs.
I needed pliers to remove and replace the left (temperature & fan speed) bulb in its socket.
It was fun reassembling the dashboard. I managed to drop the screw securing the large dashboard bezel on the right side of the instrument cluster into the center console. I had to remove the 2 screws on the left side of the console and pull it away to find the screw. It managed to lodge itself in a stiffening rib on the side of the console.

I needed pliers to remove and replace the left (temperature & fan speed) bulb in its socket.


It was fun reassembling the dashboard. I managed to drop the screw securing the large dashboard bezel on the right side of the instrument cluster into the center console. I had to remove the 2 screws on the left side of the console and pull it away to find the screw. It managed to lodge itself in a stiffening rib on the side of the console.