Where is the turn signal flasher relay on 2005 Chevrolet Impala?

The turn signal flasher relay on a 2005 Chevrolet Impala is typically located inside the under-dash fuse panel. It's not always a separate relay; in some models, it's integrated into the Body Control Module (BCM).

To be certain:

1. Consult your owner's manual: This is the best place to start. The manual will have a diagram of the fuse panel and identify the flasher relay (or indicate if it's part of the BCM).

2. Check the fuse panel diagram: Even without the manual, there's usually a diagram on the inside cover of the fuse box itself. Look for a component labeled "turn signal," "flasher," or a similar designation.

3. If you can't find it: It's possible the flasher is integrated into the BCM, requiring professional diagnosis and repair. A mechanic will have the tools and expertise to determine this.

Remember to always disconnect the negative battery terminal before working with any electrical components in your car.