How do I replace dashboard heater light? The glowing lights that indicate direction of air flow.

Heater light bulb, and all other bulbs for the air conditioning buttons, are on the same mini panel, and attached to the back of the radio front fascia. To dismount this fascia, you need 1) To pry out (no screws) the clock 2) Unscrew the one screw that holds the top of the fascia (screw is hidden behind clock) 3) Unscrew the two screws at the bottom of the fascia 4) Disconnect all connectors from the back of the fascia 5) Look for the burnt minibulb.
You could replace the bulb without disconnecting, but the cables are short, and the possibilities of marring your dashboard are high.