The "What Is This?" game

[Elmojo]

Nope!
Time for another hint....
This is part of a system that's important for the safe and effective operation of the vehicle, but not directly related to any part of what makes it go, steer, or stop.
That help any?

[Watcher]

Airbag deployment sensor?

[Janx101]

Thermofan, back of thermofan to be precise?

[axexandru]

Some part of the lights, like the part where the bulb is mounted, or something like that.

[Elmojo]

Nope to all those, but Axe is is the closest to far.
It's not really part of the electrical system per se, but it is powered, and has a motor as part of the system, as mentioned earlier.

Another hint: They say hindsight's 20/20, but sometimes things aren't exactly as they seem...

[axexandru]

part of the radiator fan?

[Elmojo]

Nope, not a fan of any sort.
In fact, it doesn't even move that much, but it does a little....

[axexandru]

Part of the motor or the system of the whipers.

[Elmojo]

Negative to all those. 

My hint about HINDSIGHT was a big clue.

[ragecage23]

Reverse lights? Side mirror motor?

[Elmojo]

Bingo! It's the internals of a power folding mirror from a Toyota Sienna minivan.
Good job rage, take it away!

[ragecage23]

Yes!!! Alright let's give this one a shot.

[Elmojo]

Looks like the sear for a small firearm of some sort. 22 pistol maybe?

[ragecage23]

Nope not a sear, and it's not for a .22

[Elmojo]

is it firearm-related at all?

[Janx101]

Extractor for a semi auto 12 gauge?

[Slack]

Is that a safety lever for a 1911?

[Watcher]

Ejector pin for a firearm.

[Elmojo]

I'm still waiting for rage to confirm if it's even firearm-related at all. 

[ragecage23]

It is firearm related, but none of the guesses so far are correct.