This woman recently discovered the use of the lever on her rearview mirror.

Brooklyn (@everythingbrooklyn) posted a video of her tinkering with that lever in the bottom-middle of her rearview mirror after her boyfriend pointed out what it’s for.

This discovery was life-changing for her and others, especially those not taught about this specific feature.

That button tilts the rearview mirror if the car’s headlights behind you are too bright.

Pushing the lever down would tilt the mirror’s angle away from the glare making it less distracting for the driver.

Brooklyn also uploaded another video where she did this at night to see the difference.

Those who didn’t know about this found this tip as a lifesaver.

The glaring headlights behind you are a safety issue for most drivers at night.

It can be blinding, thus, not giving a clear vision or more blind spots leading to an accident.

A U.S. Department of Transportation study showed that 31% of drivers find the headlight glare disturbing, and one out of 10 drivers claimed that the glare caused their crashes.

Newer cars have this feature, too. There’s a button instead of a lever.

But instead of tilting the angle of the mirror, it dims the mirrors – rear and sides – to minimize glare.

This is much safer since it darkens all mirrors while staying at the correct angle for the driver’s vision.

However, this headlight glare dilemma has increased exponentially in recent car models.

The newer cars are using either HID (High-Intensity Discharge) or LED (Light-Emitting Diode) lights because they last longer than Halogen lights that the older car models are using, but it is so much brighter, too.

Is there any difference?