To find it, you should:
1. Remove the glove box: This usually involves releasing clips or screws holding it in place. Consult your owner's manual for precise instructions specific to your Buick Century. This is the crucial first step.
2. Look behind the glove box: Once the glove box is out, you'll likely see a small electrical component, often a rectangular or square black plastic box, with several wires connected to it. This is the most probable location for the blower motor resistor. It might be mounted to the HVAC housing itself.
3. Check your owner's manual: Even though its location is generally behind the glove box, your owner's manual (if you have one) is your best source for the exact location and removal instructions for your specific vehicle. It will often have diagrams.
4. Online resources: If you don't have the manual, searching online for "2000 Buick Century blower motor resistor location" along with images might reveal pictures from other owners who have replaced theirs. Be sure to specify the year and model. Pay attention to any differences you see compared to your vehicle, as some variations exist.
5. Consider a repair manual: A Haynes or Chilton repair manual for your year and model Buick Century provides detailed diagrams and instructions for many repairs, including this one.
Remember to disconnect the battery's negative terminal before starting any electrical work to avoid short circuits. If you're not comfortable working on your car's electrical system, it's always best to take it to a qualified mechanic.