What is the replacement bulb for Santa Fe heater switch?

The replacement bulb for a Santa Fe heater switch typically depends on the specific model and year of the vehicle. Generally, many models use a 194 or 168 type bulb, but it's best to consult the vehicle's manual or check with a parts retailer for the exact specifications. If you're unsure, bringing the old bulb to an auto parts store can help ensure you get the correct replacement.