Anyone ID this?

[jemsec]

Found a spring on the floor under the driver's side yesterday. Have no idea where it goes or it's use. Must have come out from under the dash, I think.
Does anyone know what it might be.
I did ID the lighter so don't need help with that.

Thanks in advance for reviewing.

 

[richardlillard1]

Brake pedal return spring.

 

[jemsec]

Would never have found that. Thanks for the help.