Note: These instructions are specific to a 1998-2002 Toyota Corolla. However, the same basic principle applies to most car models.
Replacement bulb kit (color of your choice)
Step 1: Remove the Front Panel
Step 2: Unfasten the Gauge Cluster
Unscrew the three screws holding the gauge cluster in place (one above and two below as indicated in the picture). Pull the gauge cluster out.
WARNING: The gauge cluster panel is connected to numerous wires. Pull it out slowly. Be careful not to destroy the wiring. You will only be able to pull it out approximately 12 inches.
Step 3: Remove the Bulb Sockets
Step 4: Replace the Bulbs
Remove the bulbs from the sockets by pulling them straight out. Place the new bulbs in the old sockets exactly the opposite way you pulled them apart. Push the new bulb and socket combinations back into the motherboard and twist it 30 degrees clockwise.