If you've ever wondered what the circle arrow button on your key fob is for but were too embarrassed to ask your mechanic or dealership, here's the simple truth: it remotely starts your car.

The key fob is your lifeline to your car, letting you unlock the doors and set off the alarm, at a minimum, but how can you tell if it needs a new battery?

‘If you’re ever stuck with a car that does not start’: Car expert shows how to start your car with a dead key fob ‘Just another example of manufacturers adding too much electronic crap on ...

Do you get a warning message on the screen that the battery in the remote control key fob needs replacing when starting your car? This wireless technology needs the power to work. When the batteries ...

Experts say the thieves are utilizing these key reprogramming tools because they allow the thieves to connect to a key fob's signal.

Thieves amplify a vehicle's radio signal to access and copy the key fob signal to steal a vehicle. Here's how to block the signal.

These key fobs allow car owners to unlock the door, start the engine, or even open the trunk from far away. But that's not all.

The key fob is a notable chink in the modern car's less than optimal cybersecurity armor.

If you have a key fob and have ever been curious about the circle arrow button and its function, here's what it means.