How do you replace the blower motor resistor on a 2001 Hyundai XG300 my blower only works on high?

To replace the blower motor resistor on a 2001 Hyundai XG300, first disconnect the negative battery terminal to ensure safety. Then, locate the blower motor resistor, which is typically found near the blower motor under the dashboard on the passenger side. Remove any necessary panels for access, disconnect the wiring harness, and unbolt the resistor from its mounting. Install the new resistor by reversing the steps, reconnect the wiring, and test the blower settings to ensure proper function.