To find it:
1. Consult your owner's manual: This is the best resource. It will have a diagram showing the fuse box layout and what each fuse controls.
2. Locate the fuse box(es): The Impala typically has at least one fuse box under the hood and another inside the car, often under the dashboard on the driver's side.
3. Look for the "Rear Defogger," "Rear Window Defroster," or a similar label: The fuse is usually clearly labeled.
If you can't find it in your owner's manual or by visually inspecting the fuse boxes, a local auto parts store or your mechanic can help you identify the correct fuse. They may also be able to test the fuse to see if it's blown.
