* Under the hood in the fuse box: This is the most common location. The fuse box is often located near the battery. The relay itself will be either a separate unit or within the fuse box itself. Consult your owner's manual or a wiring diagram specific to your Impala's year and model to pinpoint it.
* In the passenger compartment fuse box (rare): Some models might have it inside the cabin, usually under the dashboard. Again, your owner's manual is crucial here.
To find it definitively:
1. Consult your owner's manual: This is the best resource. It will have a diagram of the fuse box(es) and identify the horn relay.
2. Use a wiring diagram: Online resources like repair manuals (like those from Haynes or Chilton) or websites specializing in automotive repair information often have wiring diagrams. These diagrams will show the location and circuit for the horn relay.
3. Check online forums: Search for Impala forums related to your year and model. Other owners might have already posted about locating their horn relay.
Without knowing the exact year and model of your Chevy Impala, a more precise answer isn't possible. Always refer to your vehicle's specific documentation.
