Good morning all, I'm brand new here.
I'm looking for a part and maybe some direction as to where to find it.
Last weekend, while it was super cold, while pushing the emergency flasher switch, it fell inside the instrument panel.
The switch is fine, but the small plastic clip that holds the switch to the back of the panel broke.
I've looked around for an exploded parts diagram like I have for my WRX, but can't find one.

any advice where I can find the mounting clip?

 

Welcome
I looked up the switch. Didn't show a separate clip so I guess they're sold as one unit. You could try a wrecking yard or get in touch with our resident parts guy,
hellshotrod. He has a yard full of HHR's he parts out.

FYI. Always best to include year and model when looking for parts. Their are some differences over the years.