The lightbulbs in my 2000 ES heater/ac control panel blew. I'm unsure if the bulbs are replaceable or I have to purchase a new unit. Any help is appreciated. Thanks.

 

The bulbs are replaceable as they are small "long life" types. Your local Lexus dealership, parts department, should be able to help you locate the parts and part numbers. They are not the "garden variety" found at the local store and are usually special order.