Your key fob can do more than lock and unlock your doors.

The key fob allows you to push a button and start your engine. You can shut off your engine just as easily. It also permits keyless entry to your car. But, that fob can do a whole lot more.

Lower Your Windows and Open the Sunroof

While features vary by manufacturer, one of the universal features is the ability to lower your windows by pressing the unlock button on the key fob once, then pressing it again within 10 seconds and holding it down until all the windows have opened. CNET conducted an internal poll on Reddit and tapped CNET user comments to determine which models this works for.

1. Fold in Your Mirrors

A few vehicles can automatically detect when you’re parked in a tight space, and will fold in your side view mirrors automatically. If your car doesn’t have this feature, try holding the key fob lock button for 10 seconds. Recent models of Chevrolet and GMC pickup trucks have this feature.

2. Set Seat Adjustment Memory

Certain car models, like those from GMC, permit you to set a memory of where you like your seat. Each key fob is assigned its own number, so when you get in the car, it automatically knows who’s driving. Set your seat preference while in your car, and every time you hop in, you’ll be good to go!

3. Memorize Radio Presets

Similar to memory seats, if more than one person is sharing a vehicle and there are two key fobs, each one can be used to remember the driver’s preset radio stations.

4. Summon Your Vehicle

You can use the Tesla key fobs to move the car in and out of tight parking spaces while the driver stands outside the car. “Summon” must first be enabled, once, and only once, on the car’s center screen. From there, every time you go to your Tesla and it’s in a tight spot, you can remotely press the button in the center of the fob until the hazard lights flash. In order to pull the car forward, press the button on the front of the fob. If you want to stop it, press the same button again. To make the car go backward, press the roof button until the hazard lights flash. Next press the button on the back of the fob to put the car into motion.

5. Extend the Range of Your Key Fob

While this one sounds like an urban legend, apparently it truly works! By holding your key job against your chin and pushing the unlock, lock or panic button, you can increase the range of your key job. “That’s because behind the scenes—or, rather, inside the scenes—the fluids of your head act as a conductor,” notes tech critic David Pogue, who has a video to prove it. “Your body becomes part of the antenna—a much bigger one. If you’re old enough to remember when TV sets had “rabbit ears” antennas, you may recall that you sometimes got the clearest picture when you were touching the antenna. Same principle here.”