Smart key fobs can be tricky to replace. If you don't have an extra key, you'll likely need to get a replacement at a dealership and provide proof of ownership, according to Carfax. The dealership will then program a new key to work with your car.

The ZUS Car Key Finder gadget combines with the ZUS Car Key Finder app to help you find your car key easily within a 75-foot range. ZUS Car Key Finder also offers a remote camera shutter and remote voice recorder function to help you capture important memories.

If you have a key fob, smart key, or transponder key, you can track them. You will need a car key tracking device or an app connected to your key. The device consists of two parts - a remote and a receiver. You use the receiver to send a signal and then you can track it with the radio frequency or Bluetooth.

Leveraging Bluetooth Trackers Devices such as the Tile Mate and Tile Pro are designed to attach to your key fob and, through your smartphone's key fob finder app, allow you to track its location. If your key fob is within Bluetooth range, you can make it ring, making it much easier to find.